Here's what you need to build a better lunchbox!
Choose your lunchbox
Use any of the suggested containers. Or try another one you think will work.
Insulate your lunchbox
Put the ice pop inside
Cover the ice pop
Crumple and layer the insulation in a way that traps a lot of air.
Add more insulation
What materials will trap the most air to keep the heat from getting to the ice pop?
Close your lunchbox
Make sure your insulation fits. After all, you need to carry your ice pop somewhere!
Wait 30 minutes
Then, open up.
How’d your lunchbox do? Is your ice pop still frozen? Yes? Then eat your treat. If not, try again!
Did you know?
It’s all about stopping heat. A good insulator keeps heat from moving. For example, to keep something cold, an insulator stops heat from entering. To keep something hot, an insulator stops heat from leaving. And air is one of the best insulators around. Think bubble packaging. All that trapped air stops heat from passing through. Foam, fleece, and even crumpled paper trap air, too. Hey, how about a winter coat made out of crumpled paper!
Try this next!