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Why do we yawn?
Why do mosquito bites itch?
Why do we hiccup?
Where do butterflies go when it rains?
What makes thunder and lightning?
Why does the Earth seem flat?
Why is it warmer after it rains?
Why is iron good for us to eat?
How does magma convert into lava?
What animal is a zebra related to?
How big were dinosaur eggs?
What is the cartilage in your ear?
Can metal pieces get stuck together in space?
Why do balloons run out of air?
Why do babies grab fingers?
Why does the moon seem to follow me?
How do fish live under frozen water?
Why is Pluto no longer a planet?
Plus: more Pluto news!
Why can’t penguins fly?
Why do tigers have to be so scary?
Why can I see my breath when it’s cold out?
Why do camels spit a lot?
Why do engines need oil?
Why does the Moon have craters?
Why do trees have bark?
How do you make hair gel?
Do birds have ears?
What makes the Sun and Moon shine?
Why aren’t spiders insects?
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