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Vocab
Physical vs. Chemical 1
Physical vs. Chemical 2
States of Matter
Particles
100
What is the term for when a substance changes from a solid to a liquid?
Melting
100
Is freezing a bottle of water a physical or chemical change?
Physical--it is just a change in its state of matter.
100
Cutting your hair is an example of which type of change?
Physical--it is still hair.
100
Which state of matter has particles that move the fastest?
A Gas
100
What do we call a positively charged atom?
A proton!
200
What is the term for when a liquid turns into a solid?
Freeze
200
Is tearing up a piece of cardboard a physical or chemical change?
Physical--it is still cardboard, it has just changed its shape.
200
Making a salad for dinner is what kind of change?
Physical--it is still the same items, and they could be separated if you wanted to.
200
Which state of matter contains the least heat energy?
Solid
200
What do we call an atom with no charge?
A Neutron!
300
What is the term for when a liquid turns into a gas?
Evaporation
300
Would a campfire be an example of a physical or chemical change?
Chemical--the logs are burning and turning from wood into ashes.
300
Dropping a glass of water on the ground is what type of change?
Physical--the glass is still glass, and water is still water.
300
Which state of matter takes the shape of it's container?
Liquid
300
What do we call an atom that is negatively-charged?
An Electron!
400
What is the term for when a gas turns into a liquid?
Condensation
400
Is mixing lemonade powder and water a physical or chemical change?
Physical--it is still made up of the same components (lemonade chemicals and water molecules)
400
Putting Mentos in a bottle of Coke is what type of change?
Chemical--they are creating a bubbles, fizz, and an explosion, which means there is a chemical reaction happening.
400
Which state of matter fills the entire space it is in?
Gas
400
What do we call the center of an atom?
The Nucleus!
500

DAILY DOUBLE!

What is the term for when a solid turns directly into a gas?  (Hint, it skips the liquid phase completely)

Sublimation!  An example is dry ice. 
500
Is eating a meal a physical or chemical change?
BOTH! Chewing is physical and digesting is chemical.
500

DAILY DOUBLE!

The edge of the car starts to rust--what type of change is this?

Chemical--the paint is changing its chemical makeup.  Rusted car edges cannot be reversed.
500
Which state of matter contains an average amount of heat energy?
Liquid
500
Which two types of atoms are found in the Nucleus?
Protons and Neutrons