Some things float on water. Some things sink. Let us look.
Clay in a solid lump sinks in water. So does iron.
Mold clay into a boat shape and it will float.
Cooking oil will float on top of water.
Most fish hold a bag of gas inside.
That helps them hang in water.
The Dead Sea has very salty water. People float with ease.
In air, a helium balloon floats. Helium is lighter than air.
A life jacket helps you float. Everyone in a boat wears one.
Water play is for when a grown-up watches. Always ask first.
Words to know
- helium: a light gas
- clay: soft earth
- salty: full of salt
- jacket: a coat
