Sink or Swim
This week the children in Reception have been investigating what material will sink or float. Using key vocabulary such float meaning to rest or float on top of liquid. Sink goes to the bottom. Buoyancy means how an object floats in liquid, if good it floats on top well. Density is how the particles of the object are squashed together. If there are more spaces between the particles then the objects will float. If the particles are squashed together, it will sink. The children had lots of fun investigation and brilliant predictions.