Earth's Oceans

Vocab 1

100

This vocab word describes the saltiness of water.

Salinity

200

This is the name of the up-and-down movement of surface water.

Wave

300

These are the branch-like structures built by colonies of coral polyps.

Coral reefs

400

This is the name of the vast, flat area on the deep ocean floor. Its average depth is 15,000 feet.

Abyssal Plain

500

This is the point in the ocean where it is very steep and it rapidly gets deeper.

Continental slope

Vocab 2

100

The name of the underwater vehicle explorers travel in.

Submersibles/Submarines/Subs

200

This is the force of water pressing against whatever it surrounds.

Water pressure

300

This is the name of the rise and fall in the water level of the ocean.

**These are caused by the "pull" of the sun and moon on Earth's oceans.

Tide

400

These are the small microscopic organisms that inhabit the wide open ocean. They are a plantlike organism that makes their own food through photosynthesis.

Plankton

500

This is a built structure, often made of piles of rock, that the current cannot move. 

Jetty

Ocean Facts

100

Which ocean is the largest?

Pacific Ocean

200

Which ocean is the smallest?

Arctic Ocean

300

What percent of all the water on Earth is salt water?

97%

400

What percent of the Earth's surface do ocean's cover?

71%

500

What percent of all the water on Earth is freshwater?

3%

Final Jeopardy-What will you wager???

500

What three factors limit ocean explorers to explore the deep ocean?

1. Low temperature

2. High water pressure

3. Darkness