How Does Matter Change?

In Science we have recently learned to distinguish between matter that has undergone either a physical or chemical change. 

A change in size, shape, or state of matter (solid, liquid, gas) is a physical change.
A change that produces a different kind of matter is a chemical change.

We observed some interesting matter such as decayed  leaves, peeled potatoes, broken glass, spoiled milk, burned paper, and fried eggs and classified them as either representing physical or chemical changes. To elaborate on physical changes, students "physically" altered paper by folding, tearing, crumbling, shredding, wetting, shaping, rolling, and staining it.  Students also physically altered modeling clay. To observe chemical changes, students produced a gas by combining baking soda and vinegar, and produced iron oxide (rust) by combining iron (steel), water, and oxygen.

To review physical and chemical changes, view this engaging video. CLICK HERE
Our Science Quiz on "How Matter Changes" will be scheduled for sometime this next week.