Storms
Ocean Layers
Currents
Food Chain
Random
100

What direction do North Hemisphere storms spin?

What is clockwise?

100

What is the smallest layer in the ocean?

What is the Epipelagic Zone?

100

This primary force drives surface currents by transferring energy to the water.

What is wind?

100

These microscopic organisms are the primary producers at the base of most marine food chains.

What are phytoplankton?

100

Covering 30% of the Earth's surface, this is the largest and deepest ocean on Earth.

What is the Pacific Ocean?

200

This type of cloud is associated with thunderstorms.

What is a cumulonimbus?

200

Fish in this zone often have these enlarged features to help them see in the dark waters.

What are large eyes?

200

Due to the Coriolis effect, ocean currents in the Northern Hemisphere turn in this direction.

What is clockwise?

200

This term refers to an organism at the very top of the food chain with no natural predators.

What is an apex predator?

200

An octopus has three of these, which are used to pump blood to their organs and gills.

What are hearts?

300

Hurricanes in the Atlantic are called this in the Northwest Pacific.

What is a typhoon?

300

This, not the temperature, is the primary reason why there is no plant life in the deep ocean.

What is lack of light (or photosynthesis)?

300

This term describes a large, circular system of surface currents.

What is a gyre?

300

This percentage of energy is typically transferred from one trophic level to the next higher level.

What is 10%?

300

This type of relationship, such as between clownfish and anemones, means both partners benefit.

What is mutualism?

400

A severe, blinding snowstorm makes visibility low, a condition often called this.

What is a whiteout?

400

This refers to the layering of ocean water due to differences in temperature and density.

What is strafification?

400

These currents, comprising 90% of the ocean, are driven by differences in density, temperature, and salinity.

What is thermohaline circulation?

400

This term refers to the increase in toxin concentration at higher levels of a food chain.

What is biomagnification?

400

This is the term for light produced by marine animals.

What is bioluminescence?

500

Meteorologists use this type of radar to detect rotation in thunderstorms.

What is Doppler radar?

500

This is the deepest part of the ocean, formed where crustal plates collide.

What is a Trench (or Hadal Zone)?

500

This phenomenon, in which warm water is pushed away from the equator, helps to maintain this crucial aspect of Earth's climate.

What is heat distribution? 

500

These organisms, such as bacteria, break down dead material to recycle nutrients.

What are decomposers?

500

This is the name for a group of jellyfish floating together.

What is a smack?