Water Ecosystem

Water covers more than _______ percent of Earth's surface.

• 30

• 50

• 60

• 70

Tags

NGSS.MS-ESS2-4

There are ______ types of water ecosystem.

• 2

• 3

• 4

• 5

The 2 types of water ecosystem are______.

• salt water

• rain water

• ice water

• fresh water

Saltwater has a lot of ________________ in it.

• soil

• salt

• rocks

• trees

Tags

NGSS.MS-PS1-1

Which is NOT a freshwater ecosystem?

• rivers

• oceans

• lakes

• streams

There are _____ oceans in the world.

• 3

• 4

• 5

• 6

The biggest ocean in the world is

• Pacific

• Antarctic

• Indian

• Arctic

Guam is surrounded by what ocean?

• Pacific

• Antarctic

• Indian

• Arctic

Ocean water that is near the shore or at the surface is often warmer than water deep in the ocean because________

• it is at the top.

• the sun warms these areas.

• it is cold near the ground.

• it is not winter.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Why is the surface of the ocean less salty than the deep part?

• Animals eat the salts.

• The salts only stay in the deep part.

• The rain makes the water less salty.

• The sun takes in the salt at the surface of the ocean.

Tags

NGSS.MS-ESS2-4