Physical and Chemical Changes
By: Brianna Pierce
Definitions
Physical Changes - A change of matter from one form to another without a change in chemical properties.
Chemical Changes - A change that occurs when one or more substances change into entirely new substances with different properties.
Physical Changes
Cutting an apple into slices
It is still apples even when you cut it half.
Ice Cream mealting
It is still ice cream even when it is melted.
Solar eclipse
All it is, is the moon covering up the sun. Nothing changes.
Turning an orange into orange juice.
It's still an orange but in juice form.
Melting an ice cube.
If you melt ice it becomes water, but if you put in the freezer it would become ice again.
Crushing a soda can.
It's still a soda can, but all it is, is it's crushed.
Chemical Changes
Cooking Pancakes
You can never get the batter back.
Cooking a Steak
You can never make it raw again.
Burning Wood
Once you burn the wood it will never be the light brown again.
Popping Popcorn
One you pop the popcorn you can't get the kernels back.
Rusty Nails
The rust won't come off so it won't be able to become the nail it was before.
Moldy Bread
Once the mold id on it, it won't come off.
Sources
Physical Changes
Chemical Changes
http://www.firsttimerscookbook.com/
http://www.middleschoolchemistry.com/