Squashing, bending, twisting and stretching
Home learning focus
Learn how to squash, bend, twist and stretch materials.
You will need: a sock for the lesson activity
This guide contains:
one activity to reinforce learning.
In partnership with Twinkl
We can change the shapes of materials which are soft and flexible by:
Let's explore more in each detail - You will need your sock!
We can squash materials by pushing them, which makes them thinner and flatter, or into a ball.
Hold your sock above the palm of your hand and squash it down into the palm of your hand to make a ball.
Bending a material changes the shape of it and needs a push force.
Hold each end of your sock and bring your hands together to make the sock bend.
You can twist things when you push and pull objects at the same time.
Hold your sock in both hands and move your hands in opposite directions. The sock then becomes twisted.
When a material is pulled, it becomes longer and thinner. We call this stretching.
Hold each end of your sock in your hand and gently pull your hands apart.
There are lots of ways you can practise your scientific knowledge.
Here's an activity to get you started.
Using the world around you, can you spot objects that can be or have been:
Challenge: See if you can find five objects for each.
There's more to learn
Have a look at these other resources around the BBC and the web.