Chemical Change
Physical Change
Homogenous and Heterogenous
Gracie Fun Facts
100
Which definition is chemical change?
A) A change where matter becomes something new.
B) A change where matter only changes form.
A) A change where matter becomes something new!
100
True or False: baking a cake is a physical change.
False! It is a chemical change!
100
If Sample A = Sample B, is that heterogenous or homogenous?
It is homogenous because the samples are the same!
100
Where is Gracie from? (Double points for what state!)
The United States (Iowa)
200
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Wood is burning, which is a chemical change. How do you know?
Produces light, gas, heat...
200
You make a salad with lettuce, tomatoes, and cheese. Is that a physical or chemical change?
Physical change!
200
Metal is usually...
A) Homogeneous
B) Heterogenous
A) Homogenous!
200
How many siblings does Gracie have? (Bonus points for brothers or sisters/if they are older/younger!). Also bonus points for the name of Gracie's dog!
Two brothers: Luke (younger), Jake (older)
LULU!
300
True or False: A smell or odor is the sign of a chemical change.
True!
300
Why is ice melting into water a physical change?
Because the ice and the water are the same material: they just change form! H2O
300
2 or more phases of matter is...
A) Homogeneous
B) Heterogeneous
B) Heterogenous!
300
How old is Gracie?
22 years old!
400
What can I do to paper to make a chemical change?
Burn it!
400
What can I do to paper to make a physical change?
Fold it, rip it, write on it...
400
What phase of matter is usually homogenous?
A) Solid
B) Liquid
C) Gas
C) Gas! Like air and natural gas!
400
What is Gracie's favorite drink?
Matcha!
500
Give an example of a chemical change!
Did you do it?
500
What are the three phases of H2O?
Solid (ice), liquid (water), gas (water vapor)
500
What do I add to a CocaCola to make the mixture heterogenous?
Ice!
500
What is Gracie's favorite animal?
Orangutans!