I have laces, a boot, and four wheels in a perfect square grid under each foot. I'm the star of the birthday party at the local rink. What am I?

I love giant sheets of frozen water. When you wear me, you can glide, spin, and draw invisible lines on the cold ground. What am I?

easy · age 6+

I spin beneath you but never get dizzy. The faster you go, the faster I turn. Change me when I get too smooth to grip. What am I?

easy · age 7+

You won't find any rubber on my bottom — just shiny steel. I am useless on grass, but I fly like the wind when it freezes outside. What am I?

easy · age 6+

I protect the most important thing you own. Skaters think they're too cool for me, but one bad fall and they wish they'd worn me. What am I?

easy · age 6+