Will our balloons float or sink?
Water pushes the balloon upwards with a force called ‘ upthrust’.
Will an orange float or sink when unpeeled?
we found out that unpeeled oranges float and peeled oranges sink!
We made a ball of plasticine and it sank in water.
I made my ball into a boat and it floated!
The shape of the boat was important!
My boat could carry more than 15 passengers before it sank!
The suspense! Where our predictions accurate?