Share Your Knowledge – Chemical Reactions

When two or more molecules interact and something happens, that is called a reaction.  Rust is an example of a chemical reaction.  Iron combines with oxygen and ferrous oxide results.  We call ferrous oxide rust.

Name other examples of chemical reactions.

Chem4Kids.com: Reactions

Math Challenge Game – About This Number

Choose a number (small or large depending on the skill-level of your group). Take turns naming a fact about that number.

Let’s say you picked the number 8, for example. You could name these facts:

• It is the first number in our address
• Multiplied by itself it equal 64
• Four 2's will make this number
• Put a V in front of it to describe some car engines