LO: To understand the difference between sinking and floating.
Buoyancy- How well something floats or sinks.
Float- To rest, move or hover slowly and lightly in liquid or in the air.
Sink- To go down below the surface of something, either under water or to the ground.
Density- The amount of stuff inside of it.
Can you think of any materials that float or sink when they are in water?
We know that if a material is heavy, the chances of it floating above the water is unlikely. However, if we had a lighter material, it would be likely that the item would float above the water.
Remember not all materials that are light float and not all materials that are heavy sink. We know that a piece of paper is light, but does this mean that in water it will float? We all know what happens to paper when it gets wet.
For your task:
An example has been done for you below.
Prediction- Do you think the object will sink or float?
I think the metal teaspoon will float, because it is small and hollow.