Hang in there!
Experiment: To investigate whether sound travels better through a solid or a gas.
Materials:
You will need-
Two 30 cm pieces of thread.
One metal clothes hanger.
A piece of paper and a pen to record your results.
Method:
What you have to do-
1) Tie one piece of thread to each end of the hanger.
2) Hold the hanger upside down by the ends of the pieces of string.
3) Bang the hanger against a table.
4) Listen to how loud the sound is!
5) Now repeat steps one and two but this time put your fingers in your ears while holding the strings.
6) Bang the hanger against a table.
7) Listen to how loud the sound is!
Results:
Did you discover what we did?
When your fingers are in your ears the sound is much louder.
Conclusions:
Sound travels better through a solid (string), than through a gas (air).
Experiment: Another experiment to investigate whether sound travels better through a solid or a gas.
Materials:
You will need-
One friend.
One table.
A piece of paper and a pen to record your results.
Method:
What you have to do-
1)Sit opposite your friend.
2) Knock on the table.
3)Listen to how loud the sound is.
4) Ask your friend to place their ear against the surface of the table.
5)Knock on the table again.
6) Ask your friend to describe how loud the sound is through the table.
Results:
Did you discover what we did?
When you listen to the knocking sound through the table, it is much louder.
Conclusions:
Sound travels better through a solid (table), than through a gas (air).