36. When does sound travel faster?
Sound travel faster in
than in.
A. , solids
C. solids, liquids
B. Líquids, solids
D. solids, solids
37. Two of your friends made sound. One strongly tapped the table while the other
clapped his hands in the air. Which sound would you hear first?
A. Clapped
B. tapped
D. laughed
C. talked
38. Why do we need to protect our eyes from excessive lights
Because it will
A. Make our vision clearer.
B. Hurt our eyes and eventually be blind.
C. Make the surrounding visible.
vod OM
Ď. Help animals see things on daytime.
_39. What will happen to an ice cream when it is continuously exposed to heat?
A. It will melt.
C. It will expand.pof.
B. It will become heavier.
D. it will decrease in volume.
40. What will happen to a liquid when heated?
A. It will increase in temperature. qu C. It will remain the same. A
B. It will increase its water level. D. It will increase in volume.