Mammals are covered with …………… while birds with ............... .

I can enjoy skating because of......................... friction.

When two surfaces rub together, ..................... happens.

Name 2 magnetic metals.

Which gas is produced in photosynthesis?

Mention the law of magnetism.

John filled a beaker with water and dropped a ball into it. He was able to see the water and the ball through the beaker clearly. Which property best describes it?

How do amphibians breathe?

Birds and reptiles breathe through

The pencil is made of 3 different materials. Name them.

The unit of measuring force is .................. .

The process of making food is ……………