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A hand in a blue surgical glove holding a conical flask with pink liquid, with scientific diagrams of atoms and the carbon cycle in the background.
Pinpoint the gaps in your scientific knowledge and focus your revision for exam success.

GCSE Science Gap Finder Quiz

Use this GCSE Science Gap-Finder to spot what you know, what you’ve missed, and what to revise next across Biology, Chemistry, and Physics exam skills.

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Fascinating Fact:

Energy is never created or destroyed, it is transferred or transformed. That idea helps explain everything from food chains to electrical circuits.

In GCSE Science, you develop a toolkit of core ideas and practical understanding across Biology, Chemistry, and Physics. A gap-finder quiz helps you identify weak spots, practise applying concepts, and improve exam technique with scientific vocabulary and calculations.

  • Variable: Something that can change in an experiment, such as temperature, time, or concentration.
  • Particle model: A way of explaining materials by thinking about atoms or molecules and how they are arranged and move.
  • Reliability: How consistent results are when measurements are repeated using the same method.
What should I revise first for GCSE Science?

Start with the key ideas that appear across papers, including cells and organ systems, atoms and bonding, energy changes, forces, and required practical methods.

How do I get better at GCSE Science required practical questions?

Learn the method, identify variables and controls, describe accurate measurements, and explain how to improve reliability, such as repeating trials and calculating a mean.

How can I improve my GCSE Science calculations and units?

Write the equation, substitute values with units, rearrange carefully, and check the final unit matches the quantity, such as joules, watts, newtons, or volts.

1 .
Which of the following health problems is not related to eating too many calories?
Heart disease
Rickets
Strokes
Diabetes
Rickets is a bone disease linked to a lack of vitamin D and the mineral ion calcium

Master the science of nutrition and metabolic health by trying our most popular Biology Healthy Diet quiz.
Nutrition is the fuel for every biological process. Understanding how different nutrients work helps you explain how the human body maintains balance and stays healthy.
2 .
Which of the following give the charges in order for the proton, neutron and electron?
-1, +1, +1
0, +1, -1
+1, 0, -1
+1, +1, -1
If you weren't sure, you can remember the charges like this:<br />
Protons - P for positive<br />
Neutrons - NEUT for neutral<br />
So the electrons must be negative<br />
Solidify your Chemistry foundations by testing your knowledge in our high traffic Atoms quiz.<br />
Atoms are the building blocks of everything in the universe. Mastering the subatomic particles is the first step toward understanding how elements react and why the world around us behaves the way it does.
3 .
In which direction does thermal energy (heat) flow?
Cold to hot
Hot to cold
All directions
It depends on the exact situation
Heat energy always travels from a higher temperature to a lower temperature. There are no exceptions.

Master the laws of the universe by trying our most popular Energy Transfers quiz.
Energy is the currency of the universe. Mastering how it transforms and where it goes allows you to calculate the efficiency of any machine or biological system.
4 .
Why are antibiotics no good for treating colds and 'flu?
Colds and 'flu are viruses
Colds and 'flu are not viruses
Colds and 'flu are caused by bacteria that are resistant to antibiotics
Antibiotics work too slowly
Viruses work by damaging cells from the inside so destroying them would probably do as much damage to the cell as the virus itself. However, doctors do in fact sometimes prescribe antibiotics when people have colds or flu in order to cure secondary infections. Whilst your body's defences are weakened by the virus, it is more likely that bacteria can get past them, making you doubly ill.
Protect your exam marks by mastering the world of pathogens in our high traffic Microorganisms and Disease quiz.
Understanding pathogens is about more than just germs. It helps you explain how the body fights off invaders and why different treatments like vaccines or antibiotics are used for specific infections.
5 .
How are the elements of the periodic table arranged?
They are arranged in descending order of atomic mass
They are arranged in ascending order of atomic mass
They are arranged in descending order of atomic number
They are arranged in ascending order of atomic number
In general, the atomic mass also increases as the atomic number increases - but that isn't always the case.

Navigate the elements like a pro by completing the full Periodic Table quiz.

The Periodic Table is a map for scientists. Learning how to read its groups and periods allows you to predict how elements will behave before you even start an experiment.
6 .
"Particles with more energy move in to take the place of particles with less energy"
What method of heat transfer is being described in the previous sentence?
Sublimation
Conduction
Convection
Radiation
Whenever you see a question that deals with heat transfer by moving particles it has to be convection.

Warm up your Physics knowledge by visiting our top viewed Conduction and Convection quiz.
Heat transfer is happening around us every second. Learning the difference between conduction and convection helps you understand everything from why a metal spoon gets hot to how the weather works.
7 .
What process takes carbon dioxide from the air and makes it available to land living animals?
Photosynthesis
Respiration
Lightning strikes
Burning fossil fuels
Plants use CO<sub>2</sub> from the air in the process of photosynthesis. This same is done in the sea by phytoplankton.

See the big picture of environmental science by completing our full Carbon Cycle quiz.
The carbon cycle is the ultimate recycling program of nature. Understanding how carbon moves through the air and living things is essential for explaining how our planet maintains a stable climate.
8 .
When metals bond with non-metals what happens to their electrons?
The metals share their electrons
The metals gain electrons
The metals lose electrons
The metals keep the same number of electrons
This means that they form positive ions.

Master the complex world of chemical attractions by diving into our full Ionic Bonding quiz.
Bonding is the secret behind why materials behave the way they do. Understanding how atoms swap or share electrons allows you to explain everything from why salt dissolves to how giant structures are built.
9 .
Balance the equation Na + H2O → NaOH + H2.
2Na + 2H2O → 2NaOH + H2
Na + 2H2O → NaOH + H2
2Na + H2O → 2NaOH + H2
2Na + 2H2O → 2NaOH + 2H2
There are 2 Na atoms, 4 H atoms and 2 O atoms on each side of the equation. All the other answers have different numbers of the atoms on both sides of the equation.

Never lose an easy mark again by perfecting your technique in our Balancing Equations quiz.
Balancing equations is a vital practical skill in chemistry. It ensures your calculations are accurate and helps you predict exactly how much of a product you will make in a reaction.
10 .
Wave frequency is measured in which unit?
Seconds
Wave-seconds
Gauss
Hertz
One Hz = one wave passing per second. Gauss are the units of magnetism and wave-seconds don't exist.

Tune into success and sharpen your calculation skills with our Wave Equation quiz.
The wave equation is a fundamental tool for any physicist. Mastering this calculation helps you understand everything from the sound of music to the way light travels across the galaxy.
Author:  Tara Kemp

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