Rolling can science activity

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Aurora Lipper has posted on her blog a neat science activity. It's a can that rolls back to you... she says most adults can't explain why it works.

We made it just this morning, just with a bigger can than what Aurora used, so it rolled a longer way before turning back.



I like this activity because

1) it's so simple and quick to make,
2) kids loved it
3) it works
4) it illustrates a very important principle in science.

Go take a look!