Waves and Tides
Ecosystem Balance
Ocean Climate Change
Sustainable Seafood
Surfing
100

This is the primary force that causes the tides on Earth.

The Moon’s gravity

100

These microscopic organisms produce about 50% of the Earth's oxygen.

Phytoplankton.

100

This graph, named after a famous scientist, shows the steady rise of CO2 in our atmosphere since 1958.

The Keeling Curve.

100

This is the term for catching more fish than a population can replace through natural reproduction.

Overfishing.

100

This is the name for the front part of a surfboard.

The nose.

200

This type of tide occurs when the sun, moon, and earth are all lined up, causing the highest high tides.

Spring Tide.

200

This "Apex Predator" is essential for keeping the ocean food web healthy by removing sick or weak fish.

The Shark.

200

The ocean has absorbed over 90% of the excess heat from global warming; this is known as acting as a "Heat ____."

Sink

200

When unwanted animals (like turtles or dolphins) are accidentally caught in fishing nets, they are called this.

Bycatch.

200

To catch a wave, a surfer must lie down and do this with their arms to gain speed.

Paddle

300

Most waves are created by this force blowing across the surface of the water.

Wind.

300

This type of ecosystem is often called the "Rainforest of the Sea" because of its massive biodiversity.

Coral Reefs or Kelp Forests

300

When coral becomes stressed by water that is too warm, it expels its algae and turns white, a process called this.

Coral Bleaching.

300

This method of farming fish or seaweed in controlled water environments is an alternative to wild fishing.

Aquaculture.

300

This is the term for the hollow part of a breaking wave that a surfer can ride inside of.

The Tube (or Barrel).

400

Giant water displacement caused by an underwater earthquake or volcanic eruption is called this.

A Tsunami.

400

This is the term for a relationship where two different species live together and both benefit (like a clownfish and an anemone).

Mutualism (or Symbiosis).

400

Sea levels rise not just from melting ice, but because warm water takes up more space, a process called Thermal ____.

Expansion.

400

If you see a "Blue Tick" logo from the MSC on a tuna can, it means the fish was caught in this "S-word" way.

Sustainably.

400

When a wave "breaks," it is usually because the water has become too ______ for the wave to stay upright.

Shallow.

500

The distance between two consecutive wave crests (tops) is known by this scientific term.

Wavelength/period

500

When a top predator is removed from an ecosystem, causing the whole food web to collapse, it is called a "Trophic" what?

Trophic Cascade.

500

As the ocean absorbs more CO2, the pH of the water drops, making it more difficult for shellfish to build shells. This is called Ocean ____.

Acidification.

500

This destructive fishing method involves dragging a heavy net across the seafloor, often destroying coral habitats.

Bottom Trawling.

500

An intense feeling of euphoria, excitement, and satisfaction derived from surfing or being in the ocean

Stoke