For each of our pods we used a water balloon that we added some flour (seeds) and then blew them up to represent the pods. The flour was added by attaching a water balloon to the bottom of a funnel, then each girl put about a half a teaspoon of flour in the funnel and used a straw to smoosh it into the balloon. We had to be careful not to push to hard or the balloon came off the bottom of the funnel.
Then mommy VERY carefully (so as not to get flour in her mouth) blew up the balloon and tied it shut. We made two very big balloons and two smaller balloons to see if size would make a difference. Then the fun started - the girls launched the balloons off the back deck (under adult supervision). This would represent the pod falling from the tree.
We did notice that the smaller balloons tended not to pop and the larger would pop. We spoke about how this might be like the mature seed pod that was stretched thin and ready to spread it seeds while the younger (smaller) pod would protect its seeds until it was time to spread them.
It was a little hard to see just how much the seeds spread when looking down on the grass so we put a towel out on the table. First we put a lump of flour in the middle and it just sat there and did not move anywhere. Then we put a balloon with flour in it and popped it! You could see just how far the balloon spread the flour or seeds and how this could work to spread seeds in nature.
- 2 water balloons
- Attach the water balloon to a funnel.
- Place about half a teaspoon of flour in the funnel and force into the balloon using a straw.
- Remove the water balloon from the funnel and carefully inflate and tie off.
- Make one balloon very big and make the other smaller.
- Launch your balloons onto grass and see what happens.
- Take a balloon that did not pop and place it on a surface and pop with a knife to see the seed dispersal.