Chemical Changes
Make smells, release light, release glasses, and gives off or take in heat.
What are 4 things that may occur during a chemical change.
The match turns into burned wood and ash, and this cannot be undone.
How does a burning match show a chemical change.
The paper changes shape but it doesn't change into a new substance.
How does ripping a piece of paper show a physical change?
Anything made by combining two or more different things.
What is a mixture
Careful Timing and Measuring
What does Chemistry require?
No!
Can chemical changes be undone?
the shape, size, and/or state of the matter.
What are somethings that occurs in a physical change?
You get a whole new substance!
What happens when you create a chemical change
A change that occurs when particles that make up two or more substances are rearranged to form a new substance.
What is the definition of a chemical change.
A change that occurs when the shape, size, or state of matter changes but stays the same substance.
What is a definition of a physical change?