7 questions on GCSE science

GCSE science quiz

It's nearly time for GCSE results, but how would you do if you sat the science exam? Try our quiz. Questions are from BBC Bitesize and based on the knowledge required by GCSE syllabuses, as actual questions are longer and require full explanations. You may turn over your papers now.

Male student in a lab

1.) Multiple Choice Question

In about four billion years what will our Sun become?

 The Sun half way through its main-sequence evolution
  1. A red dwarf
  2. A red giant
  3. A red titaness

Info

The Sun and other stars eventually begin to run out of hydrogen. Gravity makes the core of the star smaller and hotter, which results in the outer layers expanding. They eventually expand so much the star becomes a red giant.

The sun and the earth

2.) Multiple Choice Question

Granite is an example of which type of rock?

Lumps of granite
  1. Igneous
  2. Metamorphic
  3. Sedimentary

Info

Metamorphic rock, which includes marble, has been subjected to heat and/or pressure, causing it to change into another type of rock. Sedimentary rock is formed from sediments that have settled at the bottom of a lake, sea or ocean and have been compressed over millions of years.

A marble statue

3.) Multiple Choice Question

Sodium hydroxide solution is made during the electrolysis of concentrated sodium chloride solution. What is it used to make?

  1. Soap
    Soap
  2. Margarine
    Margarine being spread on toast
  3. Sterilised drinking water
    Water

4.) Multiple Choice Question

Why do plants need nitrate ions?

A plant
  1. To produce proteins
  2. To make starch for storage
  3. To make fatty acids

5.) Multiple Choice Question

What is the mass number of an atom?

An atom
  1. The number of particles it contains
  2. The number of protons it contains
  3. The number of protons and neutrons it contains

6.) Multiple Choice Question

What does the epithelial tissue in the stomach do?

A woman with her hands on her stomach
  1. Produces digestive juices
  2. Churns the food
  3. Covers the inner surface of the stomach

7.) Multiple Choice Question

What is the official voltage of the mains supply in the UK?

Electricity pylon
  1. 430V
  2. 340V
  3. 230V
  4. 240V

Answers

  1. It will become a red giant. A red dwarf forms from stars smaller than our Sun. A red titaness is not a category. Click to next page find out more.
  2. It's igneous. It is made up of interlocking crystals and forms when molten rock cools slowly below ground. Click to next page find out more.
  3. Sodium hydroxide is used to make soap.
  4. Plants need nitrate ions to produce proteins. They need protein for growth and repair.
  5. The number of protons and neutrons it contains. Atoms are the basic building blocks of ordinary matter.
  6. Epithelial tissue covers the inner surface of the stomach. It protects the stomach wall, acting as a barrier. Muscular tissue churns the food in the stomach.
  7. It's 230V officially. It used to be 240V but was reduced to harmonise with Europe.

Your Score

0 - 3 : Could do better

4 - 6 : Pass

7 - 7 : A*

For past quizzes including our weekly news quiz, 7 days 7 questions, expand the grey drop-down below - also available on the Magazine page (and scroll down).

Brush up on your GCSE knowledge at BBC Bitesize. Adults can improve their general maths and English at Skillswise. Explore more about science and the natural world at BBC Science and BBC Nature.

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