Trace Energy from Plants to Animals - 5th Grade Science

The arrow from grass to cow shows energy transfer happens when the cow does what?
Answer: by eating grass with stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food. When an animal eats a plant, the energy stored in the plant's food (the sugars and starches the plant made using sunlight) transfers to the animal's body. For example, when a cow eats grass, the energy stored in the grass moves into the cow's body, where it can be used for walking, staying warm, and growing. The cow doesn't get energy from sunlight directly, from the air it breathes, or from the water it drinks—the energy comes from the plant food it eats. This is why the arrow in food chain diagrams points from the plant to the animal: energy flows from plant to animal through eating. Choice A is correct because it accurately describes that the animal gets energy by eating the plant (or consuming plant food). This demonstrates understanding that eating is the mechanism by which energy transfers from plants to animals, and that the energy stored in plant tissues moves into the animal's body when the plant is consumed. Choice B fails because it suggests the animal makes its own food, when only plants can do this through photosynthesis. The only way for animals to get the energy originally captured by plants from the sun is to eat the plants. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows. Emphasize: 'The arrow means energy flows this way.' Practice: Sun → Grass → Cow. 'Where does the cow get energy? [By eating grass] Can the cow get energy directly from the sun? [No, only plants can] What happens when the cow eats grass? [Energy in the grass transfers to the cow].' Use the phrase 'energy transfers through eating' repeatedly. Compare: Plants make their own food using sunlight (producers). Animals must eat plants or other animals to get energy (consumers). Draw a clear distinction: sunlight → plants only. Animals must eat. Show multiple examples: Cow eats grass, caterpillar eats leaves, deer eats plants, person eats vegetables—in all cases, energy transfers from plant to animal through eating. Watch for: Students who think animals can absorb sunlight directly, or who confuse things necessary for life (water, air, shelter) with energy sources. Reinforce: Water and air are needed but don't provide energy. Only food provides energy. For animals, food comes from eating plants or other animals.
In the chain Sun → algae → tadpole, the tadpole gets energy by doing what?
Answer: by eating algae with stored energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. In aquatic environments, the same energy transfer rules apply: tadpoles cannot make their own food from sunlight. Algae are like tiny water plants that photosynthesize and store the sun's energy. When tadpoles eat algae, the energy stored in the algae transfers to the tadpole's body for swimming, growing, and developing into a frog. Choice A is correct because it accurately describes that the tadpole gets energy by eating algae with stored energy, showing understanding that eating is the mechanism for energy transfer even in water habitats. Choices B, C, and D fail because tadpoles cannot absorb sunlight like algae do, pond water provides a habitat but not energy, and movement uses energy rather than creating it. To help students understand aquatic food chains: Draw Sun → Algae → Tadpole and explain 'Energy transfers work the same in water as on land.' Emphasize that algae are producers like plants, and tadpoles are consumers like land animals. Ask: 'How do tadpoles in a pond get energy? [By eating algae and tiny water plants].' Connect to land examples to show the pattern is universal.
According to Sun → Lettuce → Human, the energy humans use comes from what action?
Answer: by eating lettuce with stored energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Humans, like all animals, cannot photosynthesize—we don't have chlorophyll and cannot make food from sunlight. When humans eat lettuce, the energy stored in the lettuce (from photosynthesis) transfers to our bodies for walking, thinking, growing, and all life activities. The sun's energy is captured by lettuce through photosynthesis, and humans access that energy by eating the lettuce. Choice A is correct because it accurately describes that humans get energy by eating lettuce with stored energy, showing understanding of energy transfer through consumption. Choices B, C, and D fail because breathing air, absorbing sunlight, and drinking water are necessary for life but don't provide energy—only food provides the energy our bodies need. To help students: Make it personal—'Can you make food from sunlight like a plant?' [No] 'How do you get energy?' [By eating food]. Show various vegetables and explain each one stored energy from the sun that transfers to us when we eat them.
The model shows: Sun → Grass → Rabbit. Where does the rabbit's energy come from?
Answer: by eating grass that stored sunlight This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. The model shows energy flowing from sun to grass to rabbit, and students must identify that the rabbit cannot photosynthesize or get energy directly from the sun. When the rabbit eats grass, it receives the energy that the grass originally captured from sunlight through photosynthesis. Choice A is correct because it accurately states the rabbit gets energy by eating grass that stored sunlight, showing understanding of the complete energy pathway. Choices B, C, and D fail because water and air don't provide energy (though they're needed for life), and rabbits cannot absorb sunlight or make energy like plants do. Teaching strategy: Create arrow diagrams emphasizing 'energy flows this way.' Use the phrase 'plants capture sunlight, animals eat plants to get that energy.' Show multiple examples: cow eats grass, caterpillar eats leaves—in all cases, the animal gets the sun's energy by eating the plant that stored it.
The model Sun → Grass shows plants store energy; how does a rabbit get it?
Answer: by eating the grass to get energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. The model shows that grass stores energy from the sun through photosynthesis, but rabbits cannot photosynthesize—they don't have chlorophyll. The only way a rabbit can access the energy stored in grass is by eating it. When the rabbit eats grass, the stored energy transfers from the grass to the rabbit's body. Choice B is correct because it accurately describes that the rabbit gets energy by eating the grass, demonstrating understanding that consumption is how energy transfers from plants to animals. Choices A, C, and D fail because drinking water, absorbing sunlight like grass, and breathing air don't provide energy—rabbits cannot photosynthesize like plants and must eat to get energy. Teaching strategy: Start with what students know—'Can rabbits make food from sunlight?' [No] 'Can grass make food from sunlight?' [Yes]. Then connect: 'So how does the rabbit get the sun's energy that's in the grass?' [By eating it]. Use simple language: 'Plants make food, animals eat food.'
The arrow from grass to grasshopper shows energy transfer happens by doing what?
Answer: by eating grass with stored energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. The arrow in a food chain diagram specifically represents the direction of energy flow, which happens through eating. Grasshoppers cannot photosynthesize like grass does—they must eat the grass to obtain the energy that the grass captured from sunlight. Choice B is correct because it accurately states that energy transfer happens by the grasshopper eating grass with stored energy. Choice A fails because grasshoppers cannot absorb sunlight directly, and choices C and D fail because air and water are necessary for life but don't provide energy. Teaching strategy: Focus on arrow meaning in food chains. State clearly: 'Arrows show energy moving when one organism eats another.' Practice reading arrows: 'The arrow points from grass to grasshopper. This means the grasshopper eats the grass to get energy.' Use multiple examples to reinforce that all arrows in food chains represent eating and energy transfer.
The diagram shows Sun → Grass → Rabbit. How does the rabbit get energy?
Answer: by eating grass with stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food. When an animal eats a plant, the energy stored in the plant's food (the sugars and starches the plant made using sunlight) transfers to the animal's body. For example, when a rabbit eats grass, the energy stored in the grass moves into the rabbit's body, where it can be used for hopping, staying warm, and growing. The rabbit doesn't get energy from sunlight directly, from the air it breathes, or from the water it drinks—the energy comes from the plant food it eats. This is why the arrow in food chain diagrams points from the plant to the animal: energy flows from plant to animal through eating. Choice B is correct because it accurately describes that the animal gets energy by eating the plant (or consuming plant food). This demonstrates understanding that eating is the mechanism by which energy transfers from plants to animals, and that the energy stored in plant tissues moves into the animal's body when the plant is consumed. Choice D fails because it claims the animal gets energy directly from the sun, when animals cannot photosynthesize and must eat plants to get the sun's energy. The only way for animals to get the energy originally captured by plants from the sun is to eat the plants. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows. Emphasize: 'The arrow means energy flows this way.' Practice: Sun → Grass → Rabbit. 'Where does the rabbit get energy? [By eating grass] Can the rabbit get energy directly from the sun? [No, only plants can] What happens when the rabbit eats grass? [Energy in the grass transfers to the rabbit].' Use the phrase 'energy transfers through eating' repeatedly. Compare: Plants make their own food using sunlight (producers). Animals must eat plants or other animals to get energy (consumers). Draw a clear distinction: sunlight → plants only. Animals must eat. Show multiple examples: Cow eats grass, caterpillar eats leaves, deer eats plants, person eats vegetables—in all cases, energy transfers from plant to animal through eating. Watch for: Students who think animals can absorb sunlight directly, or who confuse things necessary for life (water, air, shelter) with energy sources. Reinforce: Water and air are needed but don't provide energy. Only food provides energy. For animals, food comes from eating plants or other animals.
The food chain shows Sun → Grass → Deer; the deer gets energy by?
Answer: by eating grass that stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food, and the deer gets energy by eating grass that stored sun energy for its activities and survival. Choice A is correct because it accurately describes that the deer gets energy by eating grass that stored sun energy, illustrating the transfer through consumption. Choice C fails because it claims the deer absorbs sunlight like a plant does, when animals must eat to obtain energy. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows, emphasizing 'The arrow means energy flows this way.' Practice: Sun → Grass → Deer; ask 'How does the deer get energy? By eating grass.' Use phrases like 'energy transfers through eating' and examples such as cows eating grass or squirrels eating nuts to distinguish energy sources from necessities like air or soil.
The model shows that energy transfers from grass to a cow when it eats.
Answer: by eating grass that stored sunlight This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Cows cannot make their own food using sunlight the way plants do—they don't have chlorophyll and cannot photosynthesize. Instead, cows must get energy by eating grass. When a cow eats grass, the energy that the grass stored from sunlight (in the form of sugars and starches) transfers to the cow's body. Choice A is correct because it accurately describes that the cow gets energy by eating grass that stored sunlight, showing understanding of the complete energy pathway from sun to plant to animal. Choices B, C, and D fail because cows cannot absorb sunlight directly (only plants can photosynthesize), breathing provides oxygen but not energy, and movement uses energy rather than creating it. To help students understand: Draw food chain arrows Sun → Grass → Cow and explain 'Energy flows this way through eating.' Ask students: 'How does the sun's energy get to the cow? [First the grass captures it, then the cow eats the grass].' Emphasize that animals are consumers who must eat producers (plants) to get energy, and watch for misconceptions that animals can get energy directly from sun, air, or movement.
The model shows Sun → Leaves → Caterpillar. The caterpillar's energy came from what?
Answer: by eating leaves that stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food. When an animal eats a plant, the energy stored in the plant's food (the sugars and starches the plant made using sunlight) transfers to the animal's body. For example, when a caterpillar eats leaves, the energy stored in the leaves moves into the caterpillar's body, where it can be used for moving, staying warm, and growing. The caterpillar doesn't get energy from sunlight directly, from the air it breathes, or from the water it drinks—the energy comes from the plant food it eats. This is why the arrow in food chain diagrams points from the plant to the animal: energy flows from plant to animal through eating. Choice B is correct because it accurately describes that the animal gets energy by eating the plant (or consuming plant food). This demonstrates understanding that eating is the mechanism by which energy transfers from plants to animals, and that the energy stored in plant tissues moves into the animal's body when the plant is consumed. Choice A fails because it suggests the animal makes its own food, when only plants can do this through photosynthesis. The only way for animals to get the energy originally captured by plants from the sun is to eat the plants. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows. Emphasize: 'The arrow means energy flows this way.' Practice: Sun → Leaves → Caterpillar. 'Where does the caterpillar get energy? [By eating leaves] Can the caterpillar get energy directly from the sun? [No, only plants can] What happens when the caterpillar eats leaves? [Energy in the leaves transfers to the caterpillar].' Use the phrase 'energy transfers through eating' repeatedly. Compare: Plants make their own food using sunlight (producers). Animals must eat plants or other animals to get energy (consumers). Draw a clear distinction: sunlight → plants only. Animals must eat. Show multiple examples: Cow eats grass, caterpillar eats leaves, deer eats plants, person eats vegetables—in all cases, energy transfers from plant to animal through eating. Watch for: Students who think animals can absorb sunlight directly, or who confuse things necessary for life (water, air, shelter) with energy sources. Reinforce: Water and air are needed but don't provide energy. Only food provides energy. For animals, food comes from eating plants or other animals.
According to Sun → Grass → Deer, how does energy flow from plants to animals?
Answer: by the deer eating grass for energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Energy flows from plants to animals through the process of eating—this is the only way animals can access the energy that plants captured from the sun. When a deer eats grass, the energy stored in the grass (from photosynthesis) transfers to the deer's body. The deer cannot get energy directly from sunlight, air, or water—it must eat plants. Choice B is correct because it accurately describes that energy flows by the deer eating grass for energy, demonstrating understanding of eating as the transfer mechanism. Choices A, C, and D fail because breathing air, absorbing sunlight directly, and drinking water don't transfer energy from plants to animals—only eating does. Teaching strategy: Emphasize the word 'flow' in energy flow. Draw arrows from grass to deer and explain 'Energy flows this direction when the deer eats.' Compare what plants can do (absorb sunlight) with what animals must do (eat plants). Use the phrase 'energy transfers through eating' repeatedly to reinforce this key concept.
In the chain Sun → leaves → caterpillar, how does the caterpillar get energy?
Answer: by eating leaves that stored sunlight This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. In the chain Sun → leaves → caterpillar, energy flows in one direction through eating. The sun's energy is captured by leaves through photosynthesis and stored as food. When the caterpillar eats the leaves, this stored sunlight energy transfers to the caterpillar's body for crawling, growing, and eventually forming a chrysalis. Choice A is correct because it accurately describes that the caterpillar gets energy by eating leaves that stored sunlight, showing understanding of the complete energy pathway. Choices B, C, and D fail because caterpillars cannot make their own food from sunlight (they lack chlorophyll), breathing provides oxygen but not energy, and caterpillars cannot absorb sunlight through their skin—only eating provides energy. To help students understand: Use the specific chain Sun → Leaves → Caterpillar with arrows. Explain: 'Each arrow means energy transfers through eating.' Ask: 'Can the caterpillar skip the leaves and get energy directly from the sun? [No, only plants can use sunlight].' Show how caterpillars must eat many leaves because they're growing rapidly and need lots of energy. Reinforce that animals are consumers who must eat to get energy.
The model shows Sun → Corn plant → Chicken. How does the chicken get energy?
Answer: by eating corn that stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food. When an animal eats a plant, the energy stored in the plant's food (the sugars and starches the plant made using sunlight) transfers to the animal's body. For example, when a chicken eats corn, the energy stored in the corn moves into the chicken's body, where it can be used for moving, staying warm, and growing. The chicken doesn't get energy from sunlight directly, from the air it breathes, or from the water it drinks—the energy comes from the plant food it eats. This is why the arrow in food chain diagrams points from the plant to the animal: energy flows from plant to animal through eating. Choice B is correct because it accurately describes that the animal gets energy by eating the plant (or consuming plant food). This demonstrates understanding that eating is the mechanism by which energy transfers from plants to animals, and that the energy stored in plant tissues moves into the animal's body when the plant is consumed. Choice A fails because it claims the animal gets energy directly from the sun, when animals cannot photosynthesize and must eat plants to get the sun's energy. The only way for animals to get the energy originally captured by plants from the sun is to eat the plants. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows. Emphasize: 'The arrow means energy flows this way.' Practice: Sun → Corn plant → Chicken. 'Where does the chicken get energy? [By eating corn] Can the chicken get energy directly from the sun? [No, only plants can] What happens when the chicken eats corn? [Energy in the corn transfers to the chicken].' Use the phrase 'energy transfers through eating' repeatedly. Compare: Plants make their own food using sunlight (producers). Animals must eat plants or other animals to get energy (consumers). Draw a clear distinction: sunlight → plants only. Animals must eat. Show multiple examples: Cow eats grass, caterpillar eats leaves, deer eats plants, person eats vegetables—in all cases, energy transfers from plant to animal through eating. Watch for: Students who think animals can absorb sunlight directly, or who confuse things necessary for life (water, air, shelter) with energy sources. Reinforce: Water and air are needed but don't provide energy. Only food provides energy. For animals, food comes from eating plants or other animals.
In the chain Sun → Corn plant → Chicken, how does the chicken get energy?
Answer: by eating the corn plant for energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. The chain shows Sun → Corn plant → Chicken, and chickens, like all animals, cannot make their own food from sunlight. Chickens must eat to get energy, and when they eat corn (or corn plants), they obtain the energy that the corn plant originally captured from the sun through photosynthesis. Choice A is correct because it accurately describes that the chicken gets energy by eating the corn plant. Choice B fails because only plants can make their own food from sunlight, choice C fails because breathing doesn't provide energy, and choice D fails because absorbing warmth doesn't give the body usable energy. To help students: Create clear food chains showing energy flow. Ask: 'Can the chicken use sunlight to make food? No, only plants can. How does the chicken get energy? By eating plants.' Distinguish between things that keep us alive (air, water, warmth) and things that provide energy (food).
Food chain: Sun → Algae → Tadpole. Where did the tadpole's energy start?
Answer: by starting in algae from sunlight This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. The food chain shows Sun → Algae → Tadpole, and students must trace where the tadpole's energy originally came from. Algae, like all plants, capture sunlight through photosynthesis and store it as chemical energy. When the tadpole eats algae, it gets this stored solar energy. Choice B is correct because it accurately identifies that the tadpole's energy started in algae from sunlight, showing understanding of the complete energy pathway. Choice A fails because the tadpole cannot get energy directly from the sun—it must eat the algae that captured the sunlight. Choices C and D fail because water and air don't provide energy. Teaching strategy: Use tracing exercises with food chains. Ask: 'Where did the energy start? [Sun] Who captured it? [Algae] How did the tadpole get it? [By eating algae]' Emphasize that all energy in food chains ultimately comes from the sun, but animals can only access it by eating plants.
In this food chain, where does the rabbit get the energy it needs?
Answer: by eating grass with stored energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food. When a rabbit eats grass, the energy stored in the grass (the sugars and starches the grass made using sunlight) transfers to the rabbit's body, where it can be used for hopping, staying warm, and growing. Choice B is correct because it accurately describes that the rabbit gets energy by eating grass with stored energy. This demonstrates understanding that eating is the mechanism by which energy transfers from plants to animals. Choices A, C, and D fail because water doesn't provide energy (just hydration), animals cannot absorb sunlight like plants do, and breathing provides oxygen but not energy—only food provides energy to animals. To help students understand energy transfer: Create simple food chain diagrams with arrows showing Sun → Grass → Rabbit. Emphasize: 'The arrow means energy flows this way through eating.' Practice asking: 'Where does the rabbit get energy? [By eating grass] Can the rabbit get energy directly from the sun? [No, only plants can].' Use the phrase 'energy transfers through eating' repeatedly and reinforce that water and air are needed for life but don't provide energy.
The model shows Sun → Tree leaves → Squirrel; how does energy reach the squirrel?
Answer: by eating plant food that stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food, and energy reaches the squirrel by eating plant food like tree leaves or nuts that stored sun energy. Choice B is correct because it accurately describes that the squirrel gets energy by eating plant food that stored sun energy, emphasizing eating as the transfer mechanism. Choice A fails because it claims the animal absorbs sunlight directly through its fur, when animals cannot photosynthesize and must eat plants. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows, emphasizing 'The arrow means energy flows this way.' Practice: Sun → Tree leaves → Squirrel; ask 'How does energy reach the squirrel? By eating leaves.' Reinforce distinctions like plants use sunlight directly while animals eat, and use examples such as rabbits eating grass or deer eating plants to illustrate energy transfer through eating.
The model shows Sun → Grass → Cow; where did the cow's energy originally come from?
Answer: from sunlight stored in grass the cow ate This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food, and the cow's energy originally comes from sunlight stored in the grass it ate, which the grass captured through photosynthesis. Choice B is correct because it accurately describes that the cow's energy comes from sunlight stored in grass the cow ate, illustrating that eating transfers energy from plants to animals. Choice D fails because it states energy comes from water the cow drinks each day, when water is necessary for life but doesn't provide energy. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows, emphasizing 'The arrow means energy flows this way.' Practice: Sun → Grass → Cow; ask 'Where did the cow's energy originally come from? From sunlight stored in grass.' Watch for misconceptions like thinking animals get energy from soil or air, and use examples like deer eating plants or chickens eating corn to reinforce that energy transfers through eating.
According to the diagram Sun → Algae → Tadpole, the tadpole gets energy by?
Answer: by eating algae that stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food, and the tadpole gets energy by eating algae that stored sun energy through photosynthesis. Choice A is correct because it accurately describes that the tadpole gets energy by eating algae that stored sun energy, showing eating as the energy transfer method. Choice C fails because it claims the tadpole absorbs sunlight like algae does, when animals cannot photosynthesize. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows, emphasizing 'The arrow means energy flows this way.' Practice: Sun → Algae → Tadpole; ask 'How does the tadpole get energy? By eating algae.' Address misconceptions like energy from water, and use examples like fish eating aquatic plants or caterpillars eating leaves to reinforce that only food provides energy via eating.
The model shows Sun → Grass; Rabbit eats grass. The rabbit gets energy by?
Answer: by eating grass that stored sun energy This question tests the ability to use models to trace energy transfer from plants to animals (NGSS 5-PS3-1). Students must understand that animals get energy by eating plants and that energy transfers through the food chain. Animals cannot make their own food using sunlight the way plants do—animals don't have chlorophyll and cannot photosynthesize. Instead, animals must get energy by eating food, and the rabbit gets energy by eating grass that stored sun energy. Choice A is correct because it accurately describes that the rabbit gets energy by eating grass that stored sun energy, highlighting the transfer process. Choice D fails because it claims the rabbit absorbs sunlight like grass does, when animals must consume plants. To help students understand energy transfer from plants to animals: Create simple food chain diagrams with arrows, emphasizing 'The arrow means energy flows this way.' Practice: Sun → Grass → Rabbit; ask 'How does the rabbit get energy? By eating grass.' Emphasize no energy without food, and use examples like deer eating plants or chickens eating corn to distinguish from misconceptions like energy from water or self-production.

Start this quiz