Floats or Sinks?

Fill a big bowl or a basin with water. Take several objects done from different materials: cork pieces, twigs, metal spoon, plastic cup and so on (take no more than 3-4 objects for one lesson). Now let the baby to guess which object will float and which one will sink. Then give the child the opportunity to throw all the objects into water and play with them. During the play, say some words about each of the objects, e.g. "This doll is made from plastic. Plastic is very light and this is why it doesn’t sink." or "This spoon is made from metal. Metal is heavy and this is why it sinks."
After the baby has played, let him/her take all the objects from water and wipe each of them with a napkin or towel.

After 2-3 exercises with objects in water, you can play such a game. Name some object (rubber ball, plastic cup, wooden brick, etc.) and let the baby guess if the object sinks or floats. Movements can be used as answers. For instance, if the object sinks – squat, if the toy floats – imitate swimmer’s movements.

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