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Science U5

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  • What is melting?
    When a solid becomes a liquid.
  • What is temperature?
    How hot or cold something is
  • T/F: There is sound in space.
    False
  • What is heat?
    Energy that flows from hot to cold
  • Sound is produced when objects vibrate or melt?
    Vibrate
  • What is refraction?
    When light changes direction when it passes through a material.
  • What is evaporation?
    When a liquid becomes a gas.
  • How does sound travel?
    in waves
  • T/ F: Sound needs a medium to travel.
    True
  • What travels at 300,000 km per second?
    light
  • LIGHT, SOUND or HEAT is made up of different colours?
    Light
  • What causes a rainbow?
    Refraction
  • What is reflection?
    When light bounces off a surface.
  • T/ F: light travels in rays
    T
  • As matter is heated the particles move FASTER or SLOWER?
    Faster
  • T/F: Light produced by living organisms is called bioluminescence
    True
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