Toy Lab

By Kelsey and Rachel

Magical Jellyfish

A: (see picture)

B: Boyle´s Law- pressure*volume=k (constant)

C: When pressure is applied, the jellyfish goes down which means the volume is decreasing.

Thoughts: We thought this was interesting because it is hard to imagine how pressure is really impacting volume without actually seeing it happen.

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Balloon Barometer

A: (see picture)

B: Charles's Law- volume/temperature=k (constant)

C: When heat was added to the glass and balloon, it caused the volume to increase, which ultimately made the balloon expand. The molecules have nowhere to go, so that causes the balloon to blow up. When the temperature was cooled (temp went down), the volume also went down which caused the balloon to deflate. After it got put in the ice, the molecules were able to chill out

Thoughts: This was cool because it was interesting how direct of an impact the temperature plays with volume.

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Squeeze the Piggy

A: (see picture)

B: Boyle´s Law- pressure*volume=k(constant)

C: When pressure is applied to the pig´s stomach, that causes the ball inside of its mouth to shoot out of the mouth which makes the volume decrease because there is now an empty space in the pig´s mouth.

Thoughts: The outcome did not surprise us because we know that when pressure is applied, it causes an object to be forced out, but we had not thought about the science behind why it does what it does.

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To Shave or Not To Shave?

A: (see picture)

B: Boyle´s Law- pressure*volume=k(constant)

C: When the air was being sucked out, it caused the pressure to decrease which then caused the volume to increase because the extra air was gone.

Thoughts: This activity surprised us because we thought that by pumping the air that it would cause the shave cream to decrease because it would pull some of it out. We were wrong because the cream got bigger.

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