Density
Buoyancy
Salinity
Sharks
Random Facts
100

Equation for density

Mass/Volume

100

Why does ice float?

Because it's less dense than liquid water

100

Chemical makeup of seasalt

NaCl - Sodium & chloride

100

What is the most known shark

Great White Shark

100

The oceans cover ___ of Earth

71%

200

Density is measured in

Mass (i.e grams) divided by volume (i.e mL)

200

What is equilibrium

A state of balance between opposing forces
200

Name of the water type between freshwater and saltwater

Brackish water

200

Shark skeletons are made of bone: True or False

False

200

The 5 Oceans are:

Atlantic Ocean, Pacific Ocean, Indian Ocean, Arctic Ocean, and Antarctic Ocean.

300

What makes some ocean water less/more dense than other water?

Temperature and Salinity

300

Water exerts _______ force on submerged objects

Buoyant

300
Name of the salt gradient

Halocline

300

All sharks must keep moving to breathe: True or false

False

300

Most of Earth's species live in the ____

Ocean

400

The 3 oceanic layers

The Surface Mixed Zone, The Transition Zone, and the Deep Zone
400

Submerged objects take the place of fluid _____ to its own volume

Equal

400

What percent of the ocean is salt? A. 14.2% B. 3.5% C. 8% D. 50%

B. - 3.5%

400
Sharks don't have swim bladders, they have...

Livers filled with oil

400

What is the deepest point in the ocean

The Mariana Trench
500

Why is cold water more dense than cold water?

Because the warmer water is, the more it expands; and the colder water is, the more it retracts

500

What are the 3 types of buoyancy?

Positive, neutral and negative

500

How does salt increase or decrease in the ocean?

Water evaporates and leaves the salt behind, or freshwater is introduced and the saltwater is diluted

500

Sharks use electrical signals to detect prey: True or False

True

500
Only around __% of the ocean has been explored A. 5% B. 17% C. 80% D. 50%

A. - 5%

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