IGCSE Combined Science April Exams

62 Questions | Total Attempts: 242

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IGCSE Quizzes & Trivia

Revision on following topics:- Transport and coordination- Atomic structure and bonding- Electricity


Questions and Answers
  • 1. 
    The Vein is a thin wall of muscle and can hold high pressure
    • A. 

      True

    • B. 

      False

  • 2. 
    How many times does blood pass through heart during one complete circulation of the body
    • A. 

      1

    • B. 

      2

    • C. 

      3

    • D. 

      4

  • 3. 
    What is the job of a heart valve?
  • 4. 
    Coronary arteries supply blood directly to the heart to give it the _______ and oxygen it needs to respire and produce it's energy.  The red blood cells that carry the oxygen have a special bi-concave shape to give them a larger ________  _______
  • 5. 
    Coronary heart disease can be caused by.....
    • A. 

      Smoking

    • B. 

      Too much electronics

    • C. 

      Too much fat

    • D. 

      No exercise

    • E. 

      Not studying for exams

    • F. 

      Lack of water

  • 6. 
    Traits of plasma are
    • A. 

      Plasma surrounds cells and carries them along as it flows through the cell walls

    • B. 

      Are fragments of cells

    • C. 

      Blood is about 55% plasma

    • D. 

      Is a flowing liquid

    • E. 

      Contains dissolved nutrients

  • 7. 
    When you climb a high mountain the air around you becomes _____
  • 8. 
    One very important hormone is adrenaline. Adrenaline is involved in the fight or flight response that prepares your body to stay and fight or run away. Adrenaline has many target organs. What are ways in which adrenaline can affect the body?
    • A. 

      Heart rate and breathing rate increases

    • B. 

      Makes you stronger

    • C. 

      Heightens senses and reactions

    • D. 

      Liver releases glucose into blood for energy

    • E. 

      Blood diverted to vital organs

  • 9. 
    Osmosis is where water goes from a ______ concentration to a _____ concentration area.
  • 10. 
    Traits of root hair cells are
    • A. 

      Helps the plant photosynthesize

    • B. 

      Large surface area

    • C. 

      Thin cell membrane

    • D. 

      Take in water and mineral salts

    • E. 

      Long and finger-like

  • 11. 
    Water is very important for plants but many plants seem to waste a lot of it. When it is hot about 700 litres of water will evaporate from the leaves of an oak tree each day. The loss of water vapour from leaves is called transpiration. It helps the plant by keeping the leaves cool, while also helping it suck up more water from the roots.
    • A. 

      True

    • B. 

      False

  • 12. 
    What is this?
    • A. 

      Transpirator

    • B. 

      Distillation experiment

    • C. 

      Potometer

    • D. 

      Gizmo

  • 13. 
    Physical Change is when a new substance is being formed. Chemical change is when it is a change of state.
    • A. 

      True

    • B. 

      False

  • 14. 
    Name the ways in which you can separate mixtures
    • A. 

      Using magnets

    • B. 

      Decanting

    • C. 

      Filtration

    • D. 

      Evaporation

    • E. 

      Distillation

    • F. 

      Chromatography

  • 15. 
    Distillation is the separation of a mixture of two substances. If one substance evaporated at 70 degrees and the other at 100 degrees we can heat it at 70 degrees so it evaporates and gets collected in the other beaker. As other substance needs to be 100 degrees to evaporate it is still where it is. Therefore they have been separated. This is distillation. 
    • A. 

      True

    • B. 

      False

  • 16. 
    All the dyes dissolve in water. Some dyes dissolve faster than others. The ones that dissolve well move up the paper more and the one's that don't dissolve as well stay near the bottom.What is this?
  • 17. 
    What are the traits of the alkali metals?
    • A. 

      Low density

    • B. 

      High density

    • C. 

      Soft metals

    • D. 

      Hard metals

    • E. 

      React violently with water

    • F. 

      Unreactive

    • G. 

      More reactive as you go down the group

    • H. 

      Low melting point

  • 18. 
    Which of these is a trait of the alkaline metals
    • A. 

      Very unreactive

    • B. 

      All produce weak alkaline solutions when dissolved in water

    • C. 

      Commonly found underwater

    • D. 

      Low melting point

  • 19. 
    What are the traits of the halogens?
    • A. 

      Non-metallic colour

    • B. 

      Less reactive going down the group

    • C. 

      Trend state, goes from gas to liquid to solid

    • D. 

      Colour becomes darker going down group

    • E. 

      Can displace each other from solutions

  • 20. 
    This group's traits are: Colourless, almost totally unreactive with any other element, used when you want an inert atmosphere. What group is this?
  • 21. 
    The transition metals are shiny hard solids (except mercury), they usually produce brightly coloured chemical compounds, high densities, high melting points and are often used as catalysts.
    • A. 

      True

    • B. 

      False

  • 22. 
    What is the mass of a electron?
    • A. 

      1

    • B. 

      0

    • C. 

      1/2000

    • D. 

      -1

  • 23. 
    There are an equal amount of protons as there are neutrons
    • A. 

      True

    • B. 

      False

  • 24. 
    Which of these are halogens
    • A. 

      Mercury

    • B. 

      Bromine

    • C. 

      Iodine

    • D. 

      Fluorine

    • E. 

      Oxygen

  • 25. 
    When metals react they gain outer electron shells to achieve a full electron shell. When non-metals react with a metal they lose outer electron shells in order to leave a full electron shell.
    • A. 

      I absolutely agree with this

    • B. 

      No way