Category: Science and Nature

Pick your favorite topic below. Read the opening, then solve the math together!

Donuts in Space

The donut has been a favorite treat for hundreds of years. But we bet you’ve never tried to shoot one into outer space. Two brothers, Alexander

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Big Mouth

Pelicans are those tropical birds with the funny sack hanging from their beak. Why do they have that giant gaping mouth? What’s going on in

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