Ideas for Principle #31

💡 Bath sponge - soaks up water and soap and is made of many tiny holes that give it its flexibility and absorption.

Bread in soup - soaks up the soup and its delicious flavors.

A mattress or pillow - made of material with tons of tiny holes, so it stays soft, breathes, and isn't too heavy.

Do you have something heavy or dense that's hard to carry, or doesn't breathe?!
A completely solid, dense material is heavy and doesn't breathe.

Worth thinking about: can we add small holes to the material, so it becomes lighter, more flexible, or more absorbent?

Small holes don't weaken the material - they actually give it new, useful properties.

Ready for a challenge? We've prepared some extra challenges for you to try

Try it together. Compare a sponge with lots of holes to a piece of material with no holes, and check which one soaks up water faster.

Easy
1. Check together how much water a sponge with holes absorbs compared to regular fabric.
2. Ask your child which small, recurring expense they usually don't notice.

A bit of a stretch
3. Pick one small buying habit together to give up this week, and check how much money it saves.
4. Check together whether a pillow with small holes is softer than a full, dense pillow.

Challenge for champions
5. Ask your child to design a new object built entirely out of small holes, and explain how that helps it.
6. Try together to find three small expenses in the budget that could be given up, and check together how much that adds up to by the end of the month.