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miscellaneous
matter in pyshical changes
matter in chemical changes
states of matter
vocab
100
what is matter?
anything that has mass and takes up space
100
What is a physical change?
A change in a substance that does not result in a new substance.
100
What is a chemical change?
A change that results in a new substance.
100
What is freezing?
When a liquid turns into a solid.
100
What is the LAW OF CONSERVATION of MASS?
the total mass of the products that form equals the total mass of the substances that react.
200
How many elements have been discovered? A) 115 B) 116 C) 117 D) 404
116
200

Name two physical changes?

Answers may vary.

200

What happens when you leave a metal hand tool in a garden for a couple of weeks?The area get a lot of rain.You see that it has brown spots, what are those spots?How did they form?

Rust, from oxidation. 

200
how do the particles in a gas move?
Quickly all over the place.
200
What does ductile mean?
Ductile means a substance can be pulled into strands without breaking.
300

What is a homogenous mixture and give an example

a mixture that cannot be separated easily. lemonade + sugar

300
What is the difference between physical and chemical chages?
Physical changes don't result in a new substance.
300

what are the 5 signs for a chemical change 

smell, color, makes a gas, input/output of energy, formation of a solid 

300
What happens when a solid is heated?
It melts.
300
What is a molecule?
A molecule is made up of two or more atoms joined together.
400
Why is the scientific name for table salt, Sodium Chloride?
Because it is made of Sodium and Chloride.
400
DAILY DOUBLE!!!! IS WOOD BURNING A PHYSICAL CHANGE, OR A CHEMICAL CHANGE? ANSWER THIS TOO: IS PAPER BEING CUT A PHYSICAL CHANGE OR CHEMICAL CHANGE?
A) chemical change B) physical change
400

what is a chemical change

when the bonds of something changes and makes a new substance 

400
How do particles move in a solid?
They vibrate in place
400
What does malleable mean?
It means it is able to bend.
500

If I start with burger. Explain burger after a chemical change. Explain burger after a physical change. 

I eat burger. I use the bathroom and its no more burger. I cut burger, I still have burger. 

500
What do all physical changes have in common?
All physical changes don't result in a new substance.
500
Do you think butter can have a change of state?Why?
Yes, because it can turn to a liquid and a soild
500
What are the three states of matter?
Liquid,solid, and gas
500
DAILY HALF!!!! HOW CAN THE MASS OF AN APPLE COMPARE TO THE SAME APPLE SLICED INTO PIECES?
They will wiegh the same.