Air Pollution Basics
Water Pollution
Chemical Reactions & Pollution
Conservation Chemistry
Everyday Pollutants
100

This gas, produced by burning fossil fuels, is the main contributor to global warming.

What is carbon dioxide (CO₂)?

100

This common nutrient from fertilizers can cause harmful algal blooms in water.

What is nitrogen?

100

Burning fossil fuels is an example of this type of chemical reaction.

What is combustion?

100

This process turns used materials into new products to reduce waste.

What is recycling?

100

These small plastic pieces found in water and products are called this.

What are microplastics?

200

This toxic gas is formed when carbon burns without enough oxygen.

What is carbon monoxide (CO)?

200

This process happens when excess nutrients cause rapid algae growth and oxygen depletion.

What is eutrophication?

200

This forms when gases mix with water in the air and make this type of substance.

What is acid rain?

200

Using less energy reduces the need to burn fossil fuels, lowering emissions of this greenhouse gas.

What is carbon dioxide?

200

Litter like plastic bottles and wrappers is an example of this kind of pollution.

What is land pollution?

300

This pollutant forms when nitrogen oxides react with sunlight and oxygen, creating smog.

What is ozone (O₃)?

300

Oil spills harm water because oil does not mix with water due to this property.

What is nonpolarity?

300

Rust forms when iron reacts with this gas in the air.

What is oxygen?

300

This renewable energy source uses chemical reactions in photovoltaic cells.

What is solar energy?

300

Batteries can leak this harmful heavy metal into the environment.

What is lead?

400

These tiny solid or liquid particles in air pollution are called this.

What is particulate matter (PM)?

400

This toxic metal, often found in contaminated fish, can damage the nervous system.

What is mercury (Hg)?

400

The pH of acid rain is typically lower than this neutral value.

What is 7?

400

This type of material can break down naturally over time in the environment.

What is biodegradable?

400

This common household chemical, when mixed incorrectly with bleach, can produce toxic gas.

What is ammonia?

500

This element in fuel used to be a major air pollutant before being removed from gasoline.

What is lead (Pb)?

500

This term describes chemicals that build up in organisms as you move up the food chain.

What is biomagnification?

500

This gas reacts with water to form carbonic acid, slightly lowering ocean pH.

What is carbon dioxide (CO₂)?

500

This principle of chemistry focuses on designing safer chemicals and reducing waste.

What is green chemistry?

500

This compound in fertilizers can contaminate drinking water and is harmful at high levels.

What is nitrate (NO₃⁻)?