Kate's Corner: A lesson on density

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BRIDGEPORT, W. Va (WDTV) - I have a fun experiment planned for this topic but before we can do that, we have to have a science lesson. This lesson is over density.

Density is a measure of how compact an object is. So to know the density of an object, you have to know its mass and volume. Volume is the amount of space something takes up. Now mass is a little more tricky to explain. It is how heavy something is but it is different than its weight. Weight is a force that is affected by gravity. So that means you would have a different weight on the moon but your mass stays the same no matter where you are.

Once you know the object's mass and volume, you can then calculate the density because density is the mass divided by the volume.

To give you a real life example of density in the world, imagine you have two boxes. These boxes are identical in shape and size. The box on the left is filled with cotton balls. The on of the right is filled with marbles. Which one has the greater density?

If you answered the box on the right filled with marbles, you're correct! The marbles are heavier and increase the box's mass which means the density is greater.

Make sure you look out for the next Kate's Corner when we experiment with density using common household products.