YR 3 SCIENCE Revision - 2nd Term

What causes condensation?

• Cooling

• Heating

• Evaporation
  

• Melting

• What happens when ice is heated?
  

• • It freezes

• It melts

• It disappears
  

• It turns into metal

• What comes out of a volcano when it erupts?
  

• Water

• Ice

• Lava

• Clouds

• What process turns liquid water into vapor?
  

• Freezing

• Evaporation

• Melting

• Condensation

• Which material is a good conductor of electricity?
  

• Plastic

• Rubber

• Copper

• Glass

How does heat energy move?

• From cold objects to hot objects
  

• From hot objects to cold objects

• In circles

• It does not move

A television changes electrical energy into:

• Heat and sound
  

• Chemical and movement
  

• Sound and food
  

• Light and wood

What is the purpose of plastic on electrical wires?

• To conduct electricity
  

• To make them shiny
  

• To protect people from electric shocks
  

• To let more electricity pass through

During an earthquake, what should you do?

• Stand near windows
  

• Hide under a strong table
  

• Run outside immediately
  

• Stay near heavy objects

What happens to melted wax when it cools?

• It evaporates
  

• It solidifies
  

• It stays liquid

• It burns