2nd Grade Science : Earth and Space Science

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

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Example Questions

Example Question #7 : 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:

True

False

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 #1 : 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 #2 : 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:

Their locations vary.

They are made of water.

They are very deep.

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 #1 : 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:

Water, leaves, a bowl, and rocks

A bowl, salt, sand, and water

Soda, water, leaves, and rocks

A bowl, ice, rocks, and dirt

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.

Example Question #11 : The Changing Shape Of Land And Water

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

Possible Answers:

Create a song and dance about landforms in your area

There is no way to represent the shape of the land

You can use your body to make the shape of the land

Build a model, sketch a drawing, or make a map

Correct answer:

Build a model, sketch a drawing, or make a map

Explanation:

The most realistic and reasonable answer choice for representing the shapes and kinds of land in an area would be to build a model, sketch a drawing, or make a map. These activities would be good representations of the earth. A model can be made out of clay or loose materials to look three-dimensional, a map is an accurate way to show people the land, and a drawing can be a great interpretation of how you see the shapes.

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

Maps show where things are located. You can map the shapes and kinds of land in any area.

Possible Answers:

False

True

Correct answer:

True

Explanation:

This statement is true. A map does show where things are and can help people locate places and landforms. Maps can represent mountains, deserts, valleys, and other landforms. Different kinds of maps even are three-dimensional and have texture to help you feel what the landforms are like.

Example Question #12 : The Changing Shape Of Land And Water

Which material would be the best to use to create a model of a mountain?

Possible Answers:

Modeling clay

Water

Sand

Dirt

Correct answer:

Modeling clay

Explanation:

The best material to use to create a model of a mountain needs to be something moldable, sturdy, and able to hold its shape. Modeling clay would meet all of these characteristics. The clay could be pressed into a mountain shape. It could even be painted or have other materials added to it to make it look more realistic.

Example Question #13 : The Changing Shape Of Land And Water

What does the term landform mean? Example: We were each assigned a landform, and we have to make a model. I was assigned a volcano and am so excited!

Possible Answers:

A cover that is placed over different parts of the land for protection

A form that must be filled out to purchase a home

A human-made structure

A natural feature of the Earth's surface

Correct answer:

A natural feature of the Earth's surface

Explanation:

The term landform is used in both science and geography. A landform is a naturally made feature of the Earth's surface. In the example, the student was assigned a volcano as a landform. Other landform examples include mountains, hills, valleys, and canyons.

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

What is a characteristic of Earth’s landforms?

Possible Answers:

All landforms are nearly identical, there is very little difference between them.

There are no characteristics of landforms that we know of.

Landforms were all made by humans and planned.

Each landform was created through natural processes over time.

Correct answer:

Each landform was created through natural processes over time.

Explanation:

A characteristic that all of Earth's landforms have in common is that they were created over time through natural processes. Landforms are changed Earth due to the process of weathering and erosion. As the Earth is changed, existing landforms change, and new landforms are created.

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

LeBron has to make a model of the shapes of the land in his area. He gets modeling clay, dirt, grass, rocks, and a tray. Which item should he choose to help make his model accurate?

 

Possible Answers:

A drawing his brother made

A globe

A photo of Mount Everest

A detailed local map

Correct answer:

A detailed local map

Explanation:

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

 

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