Q2L2 PLANET EARTH

How many continents are there?

• There are seven continents. (Some countries consider them to be only five.)

• There are eight continents. (Some countries consider them to be only five.)

• There are nine continents. (Some countries consider them to be only five.)

What percent of the planet is covered by water?

• 50% of the planet is covered by water.

• 60% of the planet is covered by water.

• 70% of the planet is covered by water.

How old is Earth?

• It is more than 4.5 to 4.6 billion years old.

• It is more than 5.5 to 5.6 billion years old.

• It is more than 6.5 to 6.6 billion years old.

Which is the Earth's 2nd layer?

• The crust

• Inner core

• Mantle

• Outer core

What is most of the earth's surface covered by?

• sand

• water

• gases

• land

The earth is surrounded with a layer of gases called the ______________

• air

• atmosphere

• rock

• water

What does the movement of The Earth cause?

• seasons 
• people
• seasons and day,night
• day and night

What is the outer layer of the Earth called?

• Crust

• Mantle

• Core

What do we call the all the water systems on Earth?

• Hydrosphere

• Biosphere

• Atmosphere

• Lithosphere

What do we call the all the land of Earth?

• Hydrosphere

• Biosphere

• Atmosphere

• Lithosphere