Exploding fireworks is an example of a(n) __________ .
physical change
chemical change
static electricity
heredity
5. Multiple Choice
30 seconds
1 pt
Melting a chocolate bar is an example of a(n) ______________ .
physical change
chemical change
photosynthesis
heredity
6. Multiple Choice
30 seconds
1 pt
Rotting bananas is an example of a(n) ___________ .
physical change
chemical change
heredity
cloning
7. Multiple Choice
30 seconds
1 pt
Cutting your hair is an example of a(n) __________ .
physical change
chemical change
photosynthesis
selective breeding
8. Multiple Choice
30 seconds
1 pt
Is squeezing oranges to make orange juice a physical or chemical change?
physical
chemical
9. Multiple Choice
15 minutes
1 pt
The diagram below shows changes happening to water in a specially shaped bottle. What changes did the water undergo?
melting and then freezing
freezing and then evaporation
condensation and then melting
evaporation and then condensation
10. Multiple Choice
15 minutes
1 pt
A group of students investigated physical and chemical changes using paper. The students recorded their observations in a table. Which student correctly recorded all the changes that took place?
Student 1
Student 2
Student 3
Student 4
11. Multiple Choice
30 seconds
1 pt
Grass grows
chemical change
physical change
12. Multiple Choice
30 seconds
1 pt
tire is inflated
chemical change
physical change
13. Multiple Choice
30 seconds
1 pt
pancakes cook
physical change
chemical change
14. Multiple Choice
30 seconds
1 pt
Is mowing the lawn a physical or chemical change?
physical change
chemcial change
15. Multiple Choice
30 seconds
1 pt
Is hammering wood to build a treehouse a physical or chemical change?