Sink or Float
Class 6 Science: materials, floating and sinking
Guess first, then drop it in! See which objects float and which sink, and what salty water changes.
Words to know
- Float
- To stay on top of a liquid.
- Sink
- To go down to the bottom of a liquid.
- Density
- How heavy something is for its size.
- Upthrust
- The upward push of a liquid on an object in it.
Quick check
Answer 3 questions to check what you learned.
Try at home
With an adult, put an egg in a glass of water: it sinks. Stir in salt, a spoon at a time. After a few spoons the egg rises and floats!