Find Mass Of Apple Without Weighing Scale – Science Experiments For Kids

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This is a simple science experiment that can be done at home. This water displacement activity can be used to introduce concepts like buoyancy, density and Archimedes’ principle to young children.

Thing needed

AppleĀ  – 1

Water

Bowls – 2 (One bigger than the other. I am using a bowl and a pie dish)

Measuring cup (calibrated for ounces)

Place the bowl into the empty pieĀ  dish. Fill the smaller bowl to the brim with water.

Science experiment - Archimedes principle - how heavy is the apple

The smaller bowl should be bigger than the apple.

Science experiment - Archimedes principle - how heavy is the apple

Gently drop the apple into the bowl.

 Science experiment - Archimedes principle - how heavy is the apple

The apple will float but it will displace some water. This water will overflow into the pie dish as you can see in the picture below.

Science experiment - Archimedes principle - how heavy is the apple

Pour that water carefully into the measuring cup.

Science experiment - Archimedes principle - how heavy is the apple

Find out how many ounces of water was displaced by the apple.

Science experiment - Archimedes principle - how heavy is the apple

We have about 5 ounces of water in the measuring cup.

Science experiment - Archimedes principle - how heavy is the apple

If you have a kitchen scale, weigh the apple and it will be 5 ounces. If you don’t have a kitchen scale to verify if this works, buy just one apple and make a note of how much it weighed.

We repeated this activity a few times and found out that the apple displaced 5 ounces of water each time.

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