What shape is the Earth?

• Flat disc

• Sphere

• Cube

Tags

NS

Natural Science

Earth

How thick is the Earth's crust?

• 5 kilometers

• 50-70 kilometers

• 30-50 kilometers

• 10-20 kilometers

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NS

Natural Science

Earth

What are the main materials that make up land?

• Plastic, glass, and metal

• Concrete, asphalt, and bricks

• Rocks and soil

• Sand, clay, and rocks

Tags

Natural Science

Earth

NS

There are ​ (a)   continents and ​ (b)   oceans on Earth.

• 7
• 5

Tags

NS

Natural Science

Earth

What is the difference between a continent and an island?

• A continent is a large landmass, while an island is a smaller landmass surrounded by water.

• A continent is a landmass that floats on water, while an island is a fixed landmass.

• A continent is a small landmass, while an island is a large landmass surrounded by water.

• Islands are always found in freshwater, while continents are found in saltwater.

Tags

NS

Natural Science

Earth

Land can also be covered with ice.

They are the ​ (a)   found at the​ (b)   of the planet.

• polar ice caps
• top and bottom

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NS

Natural Science

Earth

What percentage of the Earth's surface is covered by water?

• 50%

• 85%

• 30%

• 70%

Tags

Natural Science

NS

Earth

Why is Earth sometimes called the 'blue planet'?

• Earth is called the 'blue planet' due to its abundant water and the blue color seen from space.

• Earth is called the 'blue planet' because it has many green forests.

• Earth is called the 'blue planet' due to its high levels of carbon dioxide.

• Earth is called the 'blue planet' because of its thick atmosphere.

Tags

Natural Science

NS

Earth

What do plants need from soil to grow?

• Sunlight and air

• Sand and gravel

• Minerals

• Fertilizer and pesticides

Tags

Natural Science

NS

Earth

What are the different layers of the Earth shown in the diagram?

a

b

c

d

Inner Core

Outer Core

Mantle

Crust

Tags

NGSS.MS-ESS2-1