On Tuesday we added more resources to our tower building challenge and figured out a few things as we went. No matter what materials we used the best constructions were made with triangles. When they didn't work so well we usually found a square or rectangle had been made by mistake. There were some materials which worked with 4 corners but the most efficient use of the materials meant creating triangles.
On Wednesday none of the P6 class were in school so we had a smaller group of P5s on their own. We started with some new strategy games - mancala, blokus and Chinese chequers.
Then we did some activities to explore how solids, liquids and gases behave. We used popcorn to represent the water molecules which slide around each other and managed to make marbles sink and a ping pong ball float as they would in water.
Next we went on to make 'gloop' which is a non- Newtonian liquid.
It behaves like a liquid until pressure is applied to it.
We did some hard thinking about what exactly solid and liquid meant.
Finally we made 'flubber' or 'slime' which is a slightly more solid non-Newtonian liquid.
We accidentally made some too solid and it turned out to act like a rubber ball - it was bouncy!
If you are looking for liquids like this around the house get the ketchup out. This is why you can't get ketchup out of a glass jar easily, and, if you hit the bottom of the jar you are applying pressure so the best way to get it out is to use gravity and just wait!