2nd Grade Science : The Changing Shape of Land and Water

Study concepts, example questions & explanations for 2nd Grade Science

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Example Questions

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Example Question #1 : Use A Model To Represent The Shapes Of Water In An Area

In what way(s) can you represent the shapes and kinds of water in an area in a realistic way?

Possible Answers:

Create a fountain to display water in your home

Draw a picture, create a map, or build a model

You cannot make a representation of the shape or kinds of water in an area

Take pictures of a swimming pool and describe it as a local lake

Correct answer:

Draw a picture, create a map, or build a model

Explanation:

Each body of water is unique and can be represented visually. The most reasonable and realistic ways to represent these bodies of water would be by drawing a picture, creating a map, or building a model. Using a model can bring in another level of detail by adding in actual water. A map and drawing will give readers a chance to see how the water is shaped and surrounded by land.

Example Question #2 : The Changing Shape Of Land And Water

Maps show where things are located, but you cannot map the shapes and kinds of water in an area.

Possible Answers:

True

False

Correct answer:

False

Explanation:

This statement is untrue or false. Maps are a perfect way to show the shapes and kinds of water that are in an area. By mapping, a body of water, people can see the shape, size, depth, and how the surrounding land is shaped as well.

Example Question #2 : Use A Model To Represent The Shapes Of Water In An Area

Naomi's class is creating models to represent the shapes of water in different areas. She was assigned glaciers.

Which material would be the best to use to represent a glacier?

Possible Answers:

Ice cubes

Steam

Cup of water

A glacier cannot be modeled

Correct answer:

Ice cubes

Explanation:

The best material to select would be the ice cubes. Glaciers are a solid made of frozen water like ice cubes. The ice cubes could be stacked or chipped into the shape of a specific glacier if needed.

Example Question #3 : Use A Model To Represent The Shapes Of Water In An Area

Patricia spent hours making a beautiful model of a local Canadian lake. It was complete with sand, grass, and was the same shape. She reread the instructions and realized it was supposed to be a model of the lake in winter!

What can Patricia do to her model to represent wintertime?

Possible Answers:

Add polar bears and penguins to the shore

Put it in the freezer to turn the water to ice

Add waves, umbrellas, and beach chairs to the model

There is no way to fix the project now

Correct answer:

Put it in the freezer to turn the water to ice

Explanation:

Patricia needs to take her model from its current state to representing the wintertime. Patricia can put the model in the freezer to create ice instead of liquid water. In the winter, the lake could freeze over and become solid. These changes would make the lake appear to be in cold weather.

Example Question #4 : Use A Model To Represent The Shapes Of Water In An Area

What is a characteristic of Earth’s bodies of water?

Possible Answers:

They are all identical to each other.

They are each unique and have their own shape.

They each have the same animals and plants in them.

They are all made of saltwater.

Correct answer:

They are each unique and have their own shape.

Explanation:

A characteristic of Earth's bodies of water is that they are all unique and have their own shape. No two bodies of water are the same. They are all shaped differently, have different plants and animals, varying depths, and are located across the globe.

Example Question #5 : Use A Model To Represent The Shapes Of Water In An Area

In what way(s) can you represent the shapes and kinds of water in an area in a realistic way?

Possible Answers:

All of the answer choices are correct

Make a model

Draw a picture

Create a map

Correct answer:

All of the answer choices are correct

Explanation:

Each body of water is unique and can be represented visually. The most reasonable and realistic ways to represent these bodies of water would be by drawing a picture, creating a map, or building a model. Using a model can bring in another level of detail by adding in actual water. A map and drawing will give readers a chance to see how the water is shaped and surrounded by land. All of the listed answer choices would be good ways to represent bodies of water.

Example Question #1 : Use A Model To Represent The Shapes Of Water In An Area

Many people will model the shape of a body of water with a map. A map shows people where the water is and what it looks like from above.

Possible Answers:

False

True

Correct answer:

True

Explanation:

Maps are a perfect way to show the shapes and kinds of water that are in an area. By mapping, a body of water, people can see the shape, size, depth, and how the surrounding land is shaped as well. Making a map is a clear way to demonstrate details about a body of water.

Example Question #6 : Use A Model To Represent The Shapes Of Water In An Area

Reba has to make a model of bodies of water in her area. Her teacher tells her she can pick one of the local lakes, ponds, or the ocean shore. She also gets modeling clay, water, and a tray. Which item should she choose to help her make her model accurate?

 

 

Possible Answers:

A drawing a classmate created

A globe

A photo of a family fishing

A detailed local map

Correct answer:

A detailed local map

Explanation:

Maps are a perfect way to show the shapes and kinds of water that are in an area. By mapping, a body of water, people can see the shape, size, depth, and how the surrounding land is shaped as well. If the map is local and, detailed Reba can use this as a plan to follow when making the model.

Example Question #7 : Use A Model To Represent The Shapes Of Water In An Area

What is NOT a characteristic of ALL Earth’s bodies of water?

Possible Answers:

They are very deep.

Their locations vary.

They are made of water.

They are unique in shape and size.

Correct answer:

They are very deep.

Explanation:

Not all of Earth's bodies of water are very deep. Some bodies of water, like a stream, can be very shallow. All bodies of water are indeed water, vary in location, and are unique in their size and shape. 

Example Question #8 : Use A Model To Represent The Shapes Of Water In An Area

Amaya's class is creating models to represent the shapes of water in different areas. She was assigned to the ocean.

Which material(s) would be the best to use to represent an ocean?

Possible Answers:

A bowl, salt, sand, and water

Water, leaves, a bowl, and rocks

A bowl, ice, rocks, and dirt

Soda, water, leaves, and rocks

Correct answer:

A bowl, salt, sand, and water

Explanation:

The best materials to select would be the bowl, salt, sand, and water. The ocean is a solid made of saltwater with sand on the shores and bottom. The container can be filled with sand on the bottom and mix the saltwater to form the liquid portion. This would best represent the ocean as a model.

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