Crash Course Kids: The Life Hydrologic

What is the difference between the Hydrosphere and the Biosphere?

• The Hydrosphere is all living organisms on earth and the Biosphere is the liquid water components  on earth.

• The Biosphere is all living organisms on earth and the Hydrosphere is the liquid water components on earth.

What is a Habitat?

• Where something lives.

• How animals interact with each other.

As you go deeper into the Ocean water what changes?

• Only different types of animals change.

• Only temperature changes.

• Only pressure and salt content.

• Salt content, pressure, temperature, and different types of animals.  

Name one biotic factor that lives in the Sunlight Zone?

• Rocks

• Plants 

• Water

Why can animals such as whales and seals live in the sunlight zone?

• They breathe oxygen through their lungs and the sunlight zone does not have as much pressure.

• There is extra oxygen in the sunlight zone.

Does the Twilight Zone have more or less pressure than the Sunlight zone?

• More Pressure

• Less Pressure

Why do some animals glow in the Twilight Zone?

• To hide from predators

• To look pretty

• To attracted prey. 

What happens to the available food as we dive deeper into the ocean?

• The amount of food increases.

• The amount of food decreases.

• The amount of food stays the same.

As you dive deeper into the ocean ___________.

• the amount of species decreases.

• the amount of species stays the same.

• the amount of species increases.

What is the correct order for the 5 different layers of the ocean?

• Twilight Zone, Midnight Zone, The Abyss, Trenches, Sunlight Zone

• Sunlight Zone, Twilight Zone, Midnight Zone, The Abyss, Trenches

• Midnight Zone, The Abyss, Trenches, Twilight Zone, Sunlight Zone