Doing experiments can be interesting, and you may try the following experiments at home. Make sure that you’ll do them with an adult.
小题1:How many experiments are there in the pictures?
A.Six. | B.Five. | C.Three. | D.Two. |
小题2:The following are the instructions on how to do “Step 2” in these experiments. Which one is the right order?
a. Pour 3/4 of the water away.
b. Put a balloon on the bottle.
c. Put the bottle in a bucket of hot water. The air rises into the balloon.
A.a, b, c | B.a, c, b | C.b, a, c | D.c, a, b |
小题3:What can you see in the bottle at last in Experiment A?
A.Some ice. | B.Some water. |
C.Some ice and water. | D.A cloud and some water. |
小题4:What will happen to the balloon in “Step 3” in Experiment C?
A.It will be bigger. | B.It will be broken. |
C.It won’t change. | D.It will be in the bottle. |