Physical or Chemical change?
Cutting a piece of paper in half is a _______________ change
Physical
What are the three states of matter?
Solid, liquid, gas
MIXTURE
What example of a mixture did I give you to EAT in our experiment?
Chex Mix
Rusting, baking and burning are ______________ changes
Chemical
Do water molecules ever completely stop moving?
Yes! (At 0 Kelvin)
SOLUTION
AGAPE
Altered molecules, Gas produced, Aroma, Precipitate, Energy
Water melting from a solid to a liquid is a ____________ change
physical
When water freezes, the particles ______________
(Speed up OR slow down)
Slow down
Mixtures ____________ easily be separated
Can/Cannot
CAN
Small
Baking soda and vinegar volcanoes are examples of a _______________ change
Chemical
What happens when we lower the temperature of water vapor?
It becomes a liquid
What is a solute? (Answer with a letter only)
A. the thing that gets dissolved
B. The thing that dissolves something
A: The thing that gets dissolved
Color change is a sign of
A. Chemical change
B. Physical change
C. Both
C - toast turning brown (chemical), water turning red from Kool-aid (physical)
In a physical change, molecules ______________
(become a new substance OR do not change substance)
Do not change substance
Add heat
Give an idea for separating a solution
Boiling, spinning, filtering
_________________ is anything that has mass and takes up space
MATTER