Waste & Recycling
Climate & Energy
Our Ecosystems
The "R" Words
Random
100

This material takes up to 450 years to break down in the ocean.

Plastic

100

 This "effect" happens when gases trap heat in Earth's atmosphere.

Greenhouse Effect

100

This is the largest tropical rainforest in the world.

The Amazon 

100

The first "R"; it means using less of something.

Reduse 

100

These vehicles use both an electric motor and a gasoline engine.

Hybrids

200

Unlike plastic, this material can be recycled an infinite number of times.

Glass or Aluminum 

200

Energy from the sun is called this..

Solar Power

200

This underwater structure is dying due to rising temperatures. (Double POINTS)

Coral Reef (or The Great Barrier Reef)

200

The second "R"; finding a new purpose for an old item.

Reuse 

200

This is the only planet in our solar system known to have liquid water on its surface and an atmosphere that contains free oxygen.


Earth 

300

This term describes items that can be broken down naturally by bacteria.

Biodegradable

300

Giant "farms" use this to spin blades and generate electricity.

The Wind 

300

This is the variety of plant and animal life in a habitat.

Biodiversity

300

The process of turning food scraps into nutrient-rich soil. 

Rot (or Composting)

300

This "disposable" item, often found in school cafeterias, can take up to 500 years to decompose in a landfill, but it was actually originally designed to be used for only about 20 minutes.

Plastic Forks and Spoons and Plastic Straws

400

This is the liquid that drains from a landfill, often nicknamed...?

Garbage Juice (or Leachate)

400

These fuels come from ancient, buried organic matter like plants. (Double POINTS)

Fossil Fuels

400

These "lungs of the earth" absorb carbon dioxide and release oxygen.

Forests (or Trees)

400

This "R" involves repurposing plastics or aluminum instead of throwing them away.

Recycle 

400

Meat-free burgers designed to save water and land.

Plant-Based Burgers (Vegan Burger) 

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