Question 18
In groups, investigate the changes in air pressure. You need a small beach ball, a basin of warm water and a fridge or freezer. Inflate the beach ball. Squeeze it to feel how hard or soft it feels. Put the beach ball in the fridge or freezer. After 30 minutes, take it out and squeeze it again. Leave the beach ball in a basin of warm water. After a few minutes, take it out and squeeze it again. Discuss your results in your group.
What did you observe about the beach ball after each temperature change?
What did you observe about the beach ball after each temperature change?
