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chemical reactions

Physical and Chemical Changes
Image: iStockphoto.com/ecobo

Physical and Chemical Changes

You are surrounded by chemical reactions. A rusting iron fence you pass, the gasoline combustion in a car, the frying eggs you'll have for breakfast…The atoms in molecules are breaking their bonds, making new ones, and forming new substances.

To understand chemistry and biology, you must understand chemical reactions. Explore what causes them.

Bozeman Science
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10 Examples of Chemical Reactions in Everyday Life

10 Examples of Chemical Reactions in Everyday Life

Digestion, combustion, photosynthesis, and rust are examples of the hundreds of thousands of chemical reactions you see and experience every day. More...

Article
About.com
Pop Rocks Expander: Candy Science

Pop Rocks Expander: Candy Science

Sprinkle a few Pop Rocks on your tongue and they start popping and snapping. Sprinkle a whole package into a balloon, attach it to a bottle of soda, and the balloon inflates. Find out why. More...

Activity
Steve Spangler Science
Balancing Act!

Balancing Act!

Practice balancing equations describing chemical reactions. Remember that all the atoms on the left side of the equation must be accounted for on the right side of the equation. More...

Interactive
Jefferson Lab
Beautiful Reactions

Beautiful Reactions

What do precipitation, bubbling, crystallization, and smoke have in common? They're all chemical reactions — and beautiful to watch. See them and other reactions in amazing detail. More...

Video
BeautifulChemistry.net
How to Speed Up Chemical Reactions (and Get a Date)

How to Speed Up Chemical Reactions (and Get a Date)

How are chemical reactions and getting a date to a dance similar? Watch the video to find out. More...

Video
TED-Ed
Scientist Profile: Nanocar Engineer

Scientist Profile: Nanocar Engineer

Jason Guerrero uses chemical reactions to create the smallest cars in the world: nanocars! One day nano-sized vehicles might transport molecules and make it easier to build things at the nanoscale. More...

Profile
DragonflyTV/PBS
Self-Assembling Nanoflowers

Self-Assembling Nanoflowers

Researchers created micron-scale gardens of flowers from crystals that build themselves. How? Through delicate chemical reactions. More...

Article
Popular Science
Assignment Discovery: Chemical Reactions

Assignment Discovery: Chemical Reactions

What do an egg frying, a fence rusting, and a dead animal decomposing have in common? All are undergoing chemical reactions. Discover what they are and how we describe them. More...

Video
Discovery
Bill Nye the Science Guy on Chemical Reactions

Bill Nye the Science Guy on Chemical Reactions

Explore the science behind different kinds of chemical reactions with Bill Nye. The explosions are completely accidental. More...

Video
Disney
Kickstarting Chemical Reactions

Kickstarting Chemical Reactions

Trillions of chemical reactions happening every moment inside your body keep you alive. Four types of enzymes help them get going at the right speed. More...

Video
TED-Ed/Vance Kite
The 4 Types of Chemical Reactions

The 4 Types of Chemical Reactions

Look no further for a simple explanation of catalysts, enzymes, and the 4 types of chemical reactions. More...

Interactive
Wisc-Online.com

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