Natural Features
The Cosmos
Energy and Us
Negative Impacts
Green Goals
100

A dark underground hollow or opening in the ground that can be home to interesting mineral formations and animals like bats. 

What is a cave?

100

A large celestial body that orbits a star (e.g., the sun).

What is a planet?

100

A non-renewable energy source, such as coal or oil, formed from ancient organic matter.

What is a fossil fuel?

100
A term referring to unwanted, useless material formed as a byproduct of a process OR the manner by which resources are carelessly misused

What is waste/to waste?

100

The process of collecting discarded materials - like paper, plastic, glass, and metal - and transforming them into something new.

What is recycling?

200

A large, open, grassy area, often used to grow crops or raise farm animals.

What is a field?

200

A smaller celestial body that orbits a planet, rather than orbiting directly around a star. Hint: Earth has one, but Jupiter has 95. 

What is a moon?

200

A type of energy from a natural source that isn't depleted when used, like wind or solar power.

Renewable energy

200

To put a species at risk of extinction, typically through habitat destruction or creating hazardous conditions.

What is to endanger?

200

To make something smaller, or in this context to lessen the amount of trash that you produce.

What is to reduce?

300

A deep, narrow valley carved by the flowing of a river over millions of years.

What is a canyon?

300

A giant ball of plasma that generates heat and light.

What is a star?

300

The long-term shift in Earth's weather patterns driven by human activities since the industrial revolution.

What is climate change?

300

Any kind of physical harm that degrades the quality of an object, landscape, or resource - OR the verb by which this harm is carried out

What is damage?

300

The action of using an object again, instead of throwing it out and buying something new.

What is to reuse?

400

A biome made up of densely packed trees and characterized by high humidity, lots of rainfall, and rich biodiversity.

What is a rainforest?

400

The vast expanse above Earth's surface, including the atmosphere and outer space.

What is the sky?

400

Making a hole in rock or soil to reach underground resources like oil or natural gas.

What is drilling?

400

To make the air, water, or earth dirty or harmful by adding chemical contaminants.

What is to pollute?

400
To keep something as it is, to prevent it from being destroyed.

What is to preserve?

500

An area covered with trees, usually smaller and less dense than a forest.

What are woods? 

500

The moment in Earth's daily rotation when the sun first appears on the Eastern horizon.

What is sunrise?

500

The long-term increase in Earth's temperatures, caused by the greenhouse effect.

What is global warming?

500

The release of liquid petroleum into the environment, often occuring in the ocean due to accidents with ships or pipelines.

What is an oil spill?

500

To reverse the harm caused by human activities, helping a degraded ecosystem recover. Planting trees in a deforested area is one example.

What is to restore?