Study

G5 Checkpoint Science Revision

  •   0%
  •  0     0     0

      Back   Restart
  • What is the circulatory system made up of?
    heart, blood vessels and blood
  • Name three ways we know that a chemical reaction has taken place.
    Gas (bubbles) is produced; there is a change in colour; there is a change in temperature.
  • Describe the term "boiling point".
    The temperature at which a liquid becomes a gas.
  • Explain what happens to the light as it enters the glass block. What is this called?
    As the light enters the block, it gets bent. It then travels in a straight line until it exits the block and bends again. This is called refraction.
  • The left side of the heart pumps blood that contains __________.
    oxygen
  • Draw the electrical symbol of a 3V battery.
  • What does the heart pump through the body?
    Blood.
  • What do we call substances that do not conduct electricity?
    Electrical insulators.
  • What does the blood travelling to the lungs contain?
    Carbon dioxide.
  • Draw the electrical symbol of a buzzer.
  • Which body system is used for breathing?
    The respiratory system.
  • What are two ways we can prevent insect bites?
    Sleep under bed nets, wear long sleeves and trousers, keep doors and windows closed at night, use insect repellent, burn mosquito coils to keep them away.
  • What bones protect our lungs?
    The ribs.
  • Name the four parts of the respiratory system.
    nose, windpipe, lungs and diaphragm.
  • What does the blood coming from the lungs contain?
    Oxygen.
  • Name four living things that cause disease.
    Parasites, viruses, bacteria and fungi.
  • When we breathe in, describe the path the oxygen takes.
    nose / mouth --> windpipe --> lungs --> blood
  • Why does a metal teaspoon feel hotter than a plastic teaspoon when you put them in a cup of hot tea?
    This is because metal is a thermal conductor.
  • Use the particle model to explain dissolving.
    When a solute dissolves, the particles of the solute move between the particles of the solvent.
  • What are two ways we can control the spread of disease?
    Good hygiene and preventing insect bites.
  • Why does Neptune have the longest orbit?
    Because it is the furthest planet from the Sun.
  • What do you predict would happen to your pulse if you pedalled your bike faster?
    It would get faster.
  • What are two differences between boiling and evaporation?
    Boiling: Happens at a certain temperature; Happens throughout the liquid Evaporation: Happens at any temperature; happens at the surface of the liquid.
  • What does the stomach contain to defend against diseases?
    Acid.
  • Name two ways to increase the dissolving rate.
    Stirring and heating the solvent.
  • Heat is a type of energy transfer. What is this type of energy transfer called?
    Conduction.
  • What does bpm stand for?
    beats per minute
  • Draw the electrical symbol of two 1.5V cells.
  • What are the two parts of a solution?
    The solute and the solvent.
  • Your heart pumps blood through the body. This process is called _________.
    circulation.
  • Explain why a physical change is reversible.
    This is because a physical change alters how a substance looks and feels. It does not change into a new substance.
    • Your experience on this site will be improved by allowing cookies.