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Where does rain go? –Finn, 8, New Zealand How does pollution affect the world’s water? – Emily, 13

October 5, 2017 rcwebber

Dear, Finn, Emily, and friends:

When a raindrop falls from a cloud, there are quite a few places it could end up.

What exactly are the states of matter? - Tammy, 7, Miami

December 20, 2016 rcwebber

Dear Tammy,

No matter if you are a cat, a person, or a snowball, we have one thing in common: We are all made up of matter. Most everything that we see in our world is made of matter.

Dr. Universe: How do bugs walk on water? -Annelise W., 6, Seattle, WA

December 12, 2016 rcwebber

Dear Annelise,

The other day I was out ice skating when I started thinking about your question. Water strider bugs skitter across ponds almost as if they were skating on ice.