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Secondary school students in uniform concentrating on a science experiment using microscopes in a classroom laboratory.

Ever wonder which science topics you've actually mastered? Use our Gap-Finder to find out.

KS3 Science Gap-Finder Quiz

Use this KS3 Science Gap-Finder to check what you know, spot gaps, and decide what to practise next across Biology, Chemistry, and Physics topics.

Explore the Topic →

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Fascinating Fact:

Plants make their own food using photosynthesis, using light, carbon dioxide, and water. Oxygen is released as a useful “extra”.

In KS3 Science, students learn core ideas that link Biology, Chemistry, and Physics, and practise using evidence and scientific vocabulary. A gap-finder quiz helps you identify which foundations need work, from cells and particles to forces and reactions.

Key Terms

Atom: The tiny building block of an element, too small to see, that makes up all substances.
Force: A push or pull that can change an object’s motion, direction, or shape.
Acid: A substance with a low pH that can react with alkalis and some metals.

Frequently Asked Questions (Click to see answers)

What should I revise first for a KS3 science gap finder quiz?

Revise the basics that appear in lots of topics, including cells and organisation, atoms and elements, simple reactions and pH, and forces and motion.

How do I remember the difference between atoms, elements, and compounds?

An atom is one particle, an element is made of one type of atom, and a compound is made when two or more different elements join together chemically.

What is the safest way to work with acids and alkalis in KS3 science?

Wear eye protection, use small amounts, avoid splashes, follow instructions carefully, and wash hands afterwards, because acids and alkalis can irritate skin and eyes.

Try These Related Quizzes

1 .

Which of the following is NOT present in an animal cell?

Cell membrane

Cell wall

Cytoplasm

Nucleus

2 .

What is listed in the Periodic Table?

Only compounds

Only elements

Only gases

Only metals

An element was defined by the famous scientist Robert Boyle in 1661. The ancient Greeks thought there were four elements - fire, earth, air and water. Nowadays, we know that not a single one of those is actually an element. Fire is something burning, earth and air are mixtures and water is a compound. Believe it or not, there are still some people who believe in the ancient Greek ideas of the elements!

3 .

Which of the following is NOT a force?

Gravity

Pull

Mass

Weight

4 .

Which of the following is NOT an enzyme?

Carbohydrase

Lipase

Protease

Bile

5 .

Which of the following pH numbers indicates a neutral substance?

6 .

Which is the MAIN energy transfer taking place when a candle burns?

Chemical → light

Chemical → sound

Light → chemical

Thermal → chemical

7 .

Fertilisation of an egg occurs in:

the ovary

the oviduct

the uterus

the vagina

The oviduct is also called the fallopian tube.

8 .

Which of these statements about solids is true?

They can be compressed easily

They have no definite volume

They take the shape of their container

They do not flow

The particles are fixed in place so the shape of a solid object does not change unless something is done to it e.g. it is hit with a hammer.

9 .

In order to measure the current flowing through a bulb in a circuit, the ammeter is connected in:

Not connected in the circuit

parallel with the battery

parallel with the bulb

series with the bulb

It measures the amount of electricity flowing through the circuit or component and therefore needs to be in the circuit rather than being in parallel with it.

10 .

Which one of the following shows continuous variation?

Height

Blood group

Gender

Tongue rolling

The tallest recorded person was 272 cm tall and the shortest 56 cm tall.

Author: Tara Kemp

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