This week, you will be making a seed ball catapult. Plants are vital for our eco system and what better way to launch them than using a catapults! So we are combining physics and biology for this week’s experiment. 
In your kit you should have:
In your kit you should have:- 6 loom bands
- 6 lollipop sticks
- 1 spoon
- 1 bag of clay
- 1 bag of wildflower seed and soil mix
- 1 small bag
The Catapult
- Stack 4 of the lollipop sticks together in a pile and secure with 1 loom band on each end.
- Put another lollipop stick behind the handle of the spoon, so the bowl of the spoon is sticking out above the top or the lollipop stick. Use a loom band to attach these together.
- Put the final lollipop stick underneath the one attached to the spoon, and attach both sticks and the spoon handle together using a loom band.
- Separate the bottom stick from the top stick and slide the 4 stacked lollipop sticks in between, sideways, making an open ‘mouth’ with the spoon on top – like this –
- Secure it by attaching 2 loom bands in a ‘x’ shape where the stack of 4 sticks meets the spoon.
- Try putting a small ball of paper in your spoon and gently pushing it back then releasing so the paper flies out!
The Seed Balls
You may want to do this bit on a mat, or outside. You will need a plate or bowl to put the seeds in.- Split your ball of clay into 5 or 6 little balls, or more if you make them a bit smaller.
- Pour out your seed mix into a plate or bowl.
- Roll the clay balls in the seed mix, you may need to squish the seeds into the clay!
- Put the finished balls into the small bag provided.
- Find a green space, this could be in your garden or a green space near your house that needs brightening up!
- Place a seed ball in your catapult, make sure you aren’t going to hit anyone, and fire!