Follow this link to see how an egg’s unique shape gives it tremendous strength. Eggs are similar in shape to a three-dimensional arch, one of the strongest architectural forms. The egg is the strongest at the top and the bottom (or at the highest point of the arch). Try squeezing at either end of the egg: you won’t break it!
REMEMBER TO WASH YOUR HANDS AFTERWARDS
Design a simple boat made from 10cm x 10cm foil to hold as many paper clips as possible.
Think about the shape of the boat, especially the bottom of the boat.
Now try this boat in salted water and fizzy water. Does it make a difference to the amount of paper clips it can hold?
JDF Challenge Cards
There’s plenty to choose from here! I love 01, 03, 04, 09, 15, 17, 19, 21, 22 in the Science cards and 03, 06, 08, 11, 21 in the Engineering cards.