When an old penny, lost in the grass, and turns green it is a__________
Question 3
3.
Fireworks exploding in the night sky is a__________
Question 4
4.
Frost forming on a pumpkin is a__________ .
Question 5
5.
When an old Jack-O-lantern begins to rot it is a __________
Question 6
6.
Chemical changes happen only in things that are alive.
Question 7
7.
Physical changes happen only in things that are not alive.
Question 8
8.
The way atoms are fastened together changes during a chemical
change.
Question 9
9.
Atoms and molecules are both particles.
Question 10
10.
If a material changes color, it is proof that a chemical change is
happening.
Question 11
11.
Which is the best sign that a chemical change is happening?
Question 12
12.
Identify all of the chemical changes below.
Question 13
13.
What kind of change or changes are happening when water goes over a
waterfall?
Question 14
14.
Other Answer Choices:
solubility
physical
density
reverse
atoms
chemical
water
Question 15
15.
Use the words “atoms” and “molecules” to explain what happens when a
new material is formed during a chemical change.
Question 16
16.
Describe a change you could see that could be either a chemical change
or a physical change. Be sure to explain how the change could fit into both categories.
Watch the Generation Genius video about Physical and Chemical Changes, (Click on the blue words) then, play the online review game to check your understanding.
