It was great to have 12 students at school today as we welcomed in Level 2.
Our focus today was on our favourite subject, SCIENCE. Today we did two experiments; one with water and one with milk.
The first experiment was called 'walking water'. We used water, food colouring and paper towels to show how water could 'walk' between the cups. The students learnt what a 'hypothesis' was and they made their own hypothesis about what would happen during this experiment. The students decided how many hours it would take for the water to get from one cup to another. It was a lot of fun!
Our second experiment was called 'Magic Milk'. We used milk, food colouring and a stick with diswashing liquid on it. We waved our 'magic wands' and put the stick in the milk to watch an amazing chemical reaction. There were lots of oooooooooo's and ahhhhhhhhhh's while the dishing liquid made the milk swirl and move in all directions.
The students discussed what was happening and wondered if it would happen if we used water instead of milk. So we used water to see what would happen and it definately did not have the same reaction. The students decided there was something in the milk that made it react with the dishwashing soap. They brainstormed words like protein, calcium and fat. I was so impressed. They were right, when the dishwashing liquid touched the milk, it reacted with the fats.
The soap molecules from the dishwashing liquid are trying to attach to the fat molecules in the milk which causes movement in the liquid as the molecules in the fat and soap bond together and expel the water and food colouring.
We can hardly wait for next Friday!
Wow - great stuff. We changed the colour of an Arum Lilly at home by putting food colouring in the water and watched the lilly change colour.
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