The Life Hydrologic: Crash Course Kids #30.2

Beginning at the ocean's surface, what is the correct order of the ocean layers?

• Sunlight Zone > Midnight Zone > Abyssal > Twilight Zone > Trenches

• Trenches > Sunlight Zone > Twilight Zone > Midnight Zone > Abyssal

• Sunlight Zone > Abyssal > Twilight Zone > Trenches > Midnight Zone

• Sunlight Zone > Twilight Zone > Midnight Zone > Abyssal > Trenches

In which ocean layer are you most likely to find a marine mammal?

• Sunlight Zone

• Twilight Zone

• Midnight Zone

• Trenches

Which of the following ocean dwellers can survive the high pressure of the trenches?

• Squids

• Algae

• Star Fish

• Tuna

Which of the following statements is true?

• As you go deeper into an ocean, the salinity (saltiness) increases.

• As you go deeper into an ocean, the salinity (saltiness) decreases.

• There is no correlation between the salinity (saltiness) and ocean depth.

Which ocean layer is the deepest scuba divers have ever reached?

• Sunlight Zone

• Twilight Zone

• Abyssal

• Trenches

True or false: Some sea creatures glow in the dark to help them hide.

• True

• False