Exploring Earth's Water Bodies

Why is ocean water not safe to drink?

• It is salty

• It contains freshwater

• It is polluted

• It is too cold

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

• More than 70%

• Less than 30%

• About 50%

• Exactly 60%

Which ocean is the largest?

• Arctic Ocean

• Pacific Ocean

• Indian Ocean

• Atlantic Ocean

What is the sea primarily characterized by?

• Its freshwater content

• Where land meets the ocean

• Being completely landlocked

• Its deep waters

Where does a river usually start?

• At the country's border

• In a lake

• In the ocean

• In mountains or hills

What is the source of freshwater mentioned?

• Rivers

• Oceans

• Underground wells

• Seas

Which river is known as the world's longest?

• Mississippi River

• River Nile

• Yangtze River

• Amazon River

How are lakes formed?

• By rivers overflowing

• By rain or underground water finding a basin

• By ocean drying up

• By meteor impacts

Tags

NGSS.MS-ESS2-4

What happens to lakes without a continuous source of new water?

• They become seas

• They freeze over permanently

• They turn into rivers

• They tend to dry up

Tags

NGSS.MS-ESS2-4

Why is the Dead Sea called 'Dead'?

• Because no living being can survive in it

• Because it's the largest lake

• Because it's very deep

• Because it's located in a desert

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1