Mystery #1Tier 2friction
Why is ice so slippery?
You can walk across a dry path with no trouble, but step on ice and your feet shoot out from under you. The ice looks solid and smooth, so what makes it so impossibly slippery?

Your guess
What's your hunch about what makes ice so much more slippery than an ordinary floor?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.