Dr. Universe: Why do we have five fingers and five toes? -Eli, 11, Edinburgh, Indiana
rcwebberWhy do we have different feelings? - Charan and Aishwarya V., 10 & 8, Rutherford, New Jersey
rcwebberDear Charan and Aishwarya,
Imagine you are playing a game of soccer and your best friend is on the opposing team. The sun is out, you are having a great time, and you score the winning goal. You’d probably feel pretty happy and so would your team.
Read More ...Why is there iron in my cereal? Is there iron in other food? -Phillip, 11, Pullman, WA
rcwebberDear Phillip,
Iron is found in buildings and skyscrapers. It makes up most of the Earth’s core. It’s even found in the Sun and stars. And yes, it’s also in a bowl of cereal.
Read More ...Dear Dr. Universe, Why do we age? -Logan, 12, Pullman, WA
rcwebberDear Logan,
It’s usually later in life that we see the more dramatic signs of aging, like gray hair, wrinkles, and lots of birthday candles on our cake. But we really start growing older from the time we are born.
Read More ...Dr. Universe, How do you have a bake sale? -Aoife, 7, Omagh, Ireland
rcwebberDear Aoife,
It took more than a hundred bakers to pull off the biggest bake sale in history. They made 14,534 cakes, sold out their supply in eight hours, and made it into the Guinness World Records.
Read More ...Can you grow stuff like thread, cloth, silk, and most importantly, clothing? -Jay, Colorado
rcwebberv
Dear Jay,
We can use all kinds of animal, bug, and plant materials to make cloth. Even some of the tiniest living things on the planet can make cloth, too.
I heard about this from my friend Hang Liu, a Washington State University professor who studies the science of materials we use and wear every day.
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