The Surface of the Earth
Earth's Layers
Storms
Storms and Galaxies
The Earth's Energy
10

How many continents does the Earth have?

7

10

How many layers does the Earth have?

3

10

What is a storm that happens in cold places called?

A blizzard

10

What is our galaxy called?

The Milky Way

10

What is a machine called that changes the wind's movement into electricity?

A wind turbine

20

How many oceans does the Earth have?

5

20

Which layer is the surface of the earth?

The crust

20

What is electricity that is made in the clouds called?

Lightning

20

What are stars that make pictures in the sky called?

Constellations

20

What is a generator that catches sunlight and turns it into electricity called?

A solar cell

30

What is it called where the land meets the ocean?

The coast

30

What is lava called before it comes up out of the earth?

Magma

30

What is a storm that is a tall, spinning tunnel of wind called?

A tornado

30

How often does the Earth orbit around the Sun?

Once a year

30

What is the energy that comes from the heat under the ground called?

Geothermal energy

40

What is a small piece of land surrounded by water called?

An island

40

What is the layer below the crust called?

The mantle

40

What is the layer of air that covers the earth called?

The atmosphere

40

How many stars does the Milky Way have?

Billions

40

What can people put across rivers to turn the flowing water into electricity?

Dams

50

What is a drawing of the surface of the earth called?

A map

50

What is the area around the edge of the Pacific Ocean with lots of valcanoes called?

The Ring of Fire

50

What should you tape in your house before a storm arrives?

The windows

50

What keeps all of the planets in our Solar System orbiting around the Sun?

Gravity

50

What are the machines called that people can use to make electricity?

Generators