Erosion
Air Pollution
Water Pollution
Gravity
Space
100

Causes Erosion

Water or Wind

100

The gas that comes from cows when they burp

Methane

100

Most common water pollutant (comes from almost every human)

 Trash

100

Force that pushes objects down

Gravity

100
4th planet from the sun

Mars

200

Popular Landform caused by erosion mostly from lakes

Canyons

200

The most common air pollutant (mainly from factories)

 Carbon Dioxide

200

The ocean with the most garbage patches

Atlantic Ocean

200

Person who discovered gravity

Isaac Newton

200

Closest Star to Earth

Sun

300

A landform made from wind erosion that is made out of sand.

Sand dunes.

300

The air pollutant made up of smoke and fog

Smog

300

An event that is caused by humans and is related to oil rigs and pollutes a lot of human life and animal life

Oil spills

300
Has the most gravity in our solar system

The Sun

300

Dwarf Planet that orbits the sun

Pluto

400

One of the most famous canyons in Colorado caused by water erosion

Grand Canyon

400
Causes the Ozone layer to break and become weak

Carbon Dioxide

400

The least polluted part of the Pacific Ocean (North, West, South, East

South Pacific Ocean

400

Has the least gravity in our solar system (Planet)

Pluto

400

Biggest Star known to man

UY SCUTI

500
something that is a huge chunk of ice that erodes things.

Glaciers

500

A deadly rain that is formed when there is air pollution

Acid Rain

500
The most polluted ocean in the world

Pacific Ocean

500

Element(s) that can defy gravity

Helium and Hydrogen

500

The most dense object in our solar system

The Sun