Introducing Flexi 2.0

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Suggested questions. Click to try!
Why do some animals hibernate in the winter?
How does the heart pump blood throughout the body?
What's the probability of drawing a certain card from a deck?
What's Newton's Third Law and how does it apply in sports?
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Suggested questions. Click to try!
Why do some animals hibernate in the winter?
How does the heart pump blood throughout the body?
What's the probability of drawing a certain card from a deck?
What's Newton's Third Law and how does it apply in sports?
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