Dr. Universe: Why do trees have sap? -Aliyah, 8, Kirkland, WA
rcwebberDr. Universe: What is the most smelliest fruit in the world? -Tiana, 9
rcwebberWhere does rain go? –Finn, 8, New Zealand How does pollution affect the world’s water? – Emily, 13
rcwebberDear, Finn, Emily, and friends:
When a raindrop falls from a cloud, there are quite a few places it could end up.
Read More ...Dear Dr. Universe: I have a question for you about ants. From what I searched on Google, an ant has a nervous system, blood, open circular system, muscles, and a brain. So, Dr. Universe, the question is, do ants or other insects get headaches? Cause they work hard. –Joseph, 14, Singapore
rcwebberDear Joseph,
If you’ve ever had a headache, it might have felt like pain was radiating right out of your brain.
Read More ...Dear Dr. Universe: What causes lightning? -Monica, 10, Costa Rica
rcwebberAnd while we’re at it, let’s answer these questions:
When lightning strikes the ocean, what happens to the fish? –Olivia, 12, Manchester, UK
Why is lightning attracted to metal objects? –Grant, 11, Pullman, Wash.
Why does lightning sometimes just happen in clouds? –Leo, 11, Cayman Islands
Dear Monica, Olivia, Grant, and Leo:
While you are probably not in the middle of an electrical storm right now, there are more than 1,000 happening at any given moment on our planet. They happen on Saturn, Venus, and Jupiter, too.
Dear Dr. Universe: How do spiders make silk? Also, sometimes spiders hang down from the ceiling, when they climb back up, where does the silk go? –Johnny, 8, Pullman, WA
rcwebberDear Johnny,
Spiders can do some amazing things with their sticky, stretchy, and super-strong silk. Us cats are pretty curious about these little silk-spinning machines, too.
Read More ...Why are apples red? -Emily, 5, Seattle, WA
rcwebber
Dear Emily,
Just the other day I was biting into a crunchy, delicious red apple when I was reminded of your question. I started wondering why apples are red, too.
Read More ...Why do onions make us cry? -Kera, 5, Lawrenceville, GA
rcwebberDear Kera,
Try as we might, it can be hard to hold back tears while chopping up onions.
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