Matter
Name the 3 states of matter.
Solid
Liquid
Gas
A physical change is
reversible or irreversible?
reversible
A chemical change is
reversible or irreversible?
irreversible
Matter CANNOT be _______ or _______.
created or destroyed
A phase change is a...
chemical or physical
change.
physical
Particles are the closest together in which state of matter?
Solid
After a physical change, you have the
same/different
substance(s).
same
After a chemical change, you have the
same/different
substance(s).
different
Matter CAN be ___________
changed.
A solid will ___________ into a liquid.
melt
Atoms are the farthest apart in this state of matter.
gas
T or F
If Mrs. Nash were to dye her hair blonde, it would be an example of a physical change.
F
T or F
If Mrs. Larsen were to find moldy cheese in the refrigerator, it would be an example of a chemical change.
T
The amount of ___________ in an object will remain the same, even when you change the object.
mass
Materials that do NOT easily let heat or electricity travel through them
insulator
When do particles have the most energy?
...as a solid?
...as a liquid?
...as a gas?
as a gas
Give an example of a physical change.
Answers will vary.
Give an example of a chemical change.
Answers will vary.
If we have a cake with a mass of 500g, what will the mass of all the cake be once it has been cut up into 10 different pieces?
500g
When this type of energy is added or taken away from particles, the state of the matter will change.
thermal energy or heat
Describes how objects can bend without breaking
flexibility
Objects that are usually smooth and allow you to see the things around you.
Reflectivity
Ash from burning wood
Chemical change