This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). In this scenario, Carlos recorded ice on a pond, snow, and ice cubes as solid water, and lake water, rain, and water in a cup as liquid water. Choice C is correct because ice on a pond and snow are both frozen water, making them solid forms that are hard and maintain their shape. Choice B represents a classification error where students select liquid water when asked for solid, which happens when students don't understand that water in a cup and rain flow and pour, making them liquid not solid. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Emphasize key properties: solid water (ice) is hard and holds its shape; liquid water flows and takes shape of container. Practice with real examples: ice cubes (solid) and water in cup (liquid).

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). In this scenario, Yuki made ice cubes (solid water) and observed rain and a puddle (liquid water) outside. Choice B is correct because rain and a puddle are both liquid water—rain is water falling from clouds and puddles are water collected on the ground, both able to flow. Choice C represents selecting solid examples when asked for liquid, which happens when students don't carefully read what the question is asking for. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Practice identifying examples: have students point out liquid water around them (sink, drinking fountain, rain). Always emphasize reading the question to know whether it asks for solid or liquid examples.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). In this scenario, the examples include snow which is solid water, and rain, sink water, and a puddle which are liquid water. Choice C is correct because snow is frozen water in solid form—it consists of ice crystals that fall from the sky and accumulate on the ground. Choice B represents a category mixing error, which happens when students include both solid (snow) and liquid (rain) forms together instead of identifying only the solid form. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Emphasize key properties: solid water (ice) is hard and holds its shape; liquid water flows and takes shape of container. Show that snow is a form of solid water just like ice cubes.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). In this scenario, Chen noted snow and icicles as solid ice, and rain and water from a hose as liquid water. Choice A is correct because snow and icicles are both frozen water in solid form—snow is frozen water crystals and icicles are frozen water that was dripping. Choice C represents a mixing error, which happens when students combine one solid example (snow) with one liquid example (rain) instead of grouping by state. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Show that both are water, just in different forms based on temperature. Watch for students who mix categories by not paying attention to whether water is frozen or flowing.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). The same substance, water, can be solid (frozen) or liquid depending on temperature. In this scenario, the examples include hail on the ground, ice on a pond, and frost on grass which are solid water, and rain falling, puddles forming, and water in a bottle which are liquid water. Choice C is correct because hail and pond ice are frozen water, making them solid, not liquid. Choice D represents confusing container properties with water state, which happens when students think cold or hard objects like bottles and caps mean the water is solid. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Create a chart with two columns (Solid Water/Ice and Liquid Water) and have students brainstorm examples for each. Emphasize key properties: solid water (ice) is hard and holds its shape; liquid water flows and takes shape of container. Show that both are water, just in different forms based on temperature. Practice with real examples: ice cubes (solid) and water in cup (liquid). Watch for students who think cold water is solid just because it's cold, or who confuse the hardness of a container with the state of the water inside.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). In this scenario, the examples include ice cubes and a frozen puddle which are solid water, and water in a bottle and rain which are liquid water. Choice A is correct because both ice cubes in a tray and a frozen puddle are water in solid form—they are hard, cold, and maintain their shape. Choice D represents a container confusion error, which happens when students focus on the container (bottle) rather than the state of water inside it, or mix categories by including both solid (ice cubes) and liquid forms. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Emphasize key properties: solid water (ice) is hard and holds its shape; liquid water flows and takes shape of container. Watch for students who confuse the hardness of a container with the state of the water inside.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). The same substance, water, can be solid (frozen) or liquid depending on temperature. In this scenario, the examples include frost which is solid water, and rain and a puddle which are liquid water. Choice C is correct because frost is frozen water vapor that forms as ice crystals on surfaces, making it solid water. Choice A represents a common error where students think all wet things must be liquid, which happens when students focus on moisture rather than the actual state of matter. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Create a chart with two columns (Solid Water/Ice and Liquid Water) and have students brainstorm examples for each. Emphasize key properties: solid water (ice) is hard and holds its shape; liquid water flows and takes shape of container. Show that both are water, just in different forms based on temperature. Practice with real examples: ice cubes (solid) and water in cup (liquid). Watch for students who think cold water is solid just because it's cold, or who confuse the hardness of a container with the state of the water inside.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). In this scenario, Marcus observed ice cubes melting into water in a bowl, showing the transformation from solid to liquid water. Choice B is correct because melted ice and bowl water are both liquid forms of water that flow and take the shape of their container (the bowl). Choice A represents a state confusion where students select the solid form when asked for liquid, which happens when students don't understand that ice cubes and frost are frozen and hard, making them solid not liquid. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Emphasize key properties: solid water (ice) is hard and holds its shape; liquid water flows and takes shape of container. Watch for students who think cold water is solid just because it's cold, or who confuse the hardness of a container with the state of the water inside.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). The same substance, water, can be solid (frozen) or liquid depending on temperature. In this scenario, the examples include frost, snow, and ice cubes which are solid water, and rain, sink water, and puddles which are liquid water. Choice B is correct because rain and sink water are water in liquid form that flows and can be poured. Choice A represents reversing the classification of solid and liquid, which happens when students confuse solid examples like frost and snow with liquid water. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Create a chart with two columns (Solid Water/Ice and Liquid Water) and have students brainstorm examples for each. Emphasize key properties: solid water (ice) is hard and holds its shape; liquid water flows and takes shape of container. Show that both are water, just in different forms based on temperature. Practice with real examples: ice cubes (solid) and water in cup (liquid). Watch for students who think cold water is solid just because it's cold, or who confuse the hardness of a container with the state of the water inside.

This question tests 2nd grade understanding that water can be solid or liquid (NGSS 2-ESS2-3: Obtain information to identify where water is found on Earth and that it can be solid or liquid). Water can exist in different forms. When water is very cold (at or below freezing temperature, 32°F or 0°C), it becomes solid—we call this ice. Solid water is hard and holds its shape (ice cubes, snow, icicles, frost, frozen puddles, hail). When water is warmer than freezing, it is liquid—it flows and pours and takes the shape of its container (water in cups, rain, puddles, rivers, water from faucet). In this scenario, Maya noted icicles, frost, and ice cubes on a cold day (solid water) and rain, puddles, and water from a hose on a warm day (liquid water). Choice C is correct because icicles and frost are both frozen water, making them solid forms that are hard and maintain their shape. Choice B represents a common error where students select liquid water when asked for solid, which happens when students don't understand that water from a hose and rain flow and pour, making them liquid not solid. To help students identify solid and liquid water: Do a freezing/melting experiment—freeze water in ice cube tray, then let ice melt and observe the change from solid to liquid. Create a chart with two columns (Solid Water/Ice and Liquid Water) and have students brainstorm examples for each. Practice with real examples: ice cubes (solid) and water in cup (liquid).