Free GCSE Chemistry Flashcards & Quizzes

How it works

How to revise with these GCSE flashcards

Pick a subject and topic. Choose one topic to focus on, or All topics to mix them up. Foundation students can untick Higher tier, and Combined Science students can untick Triple science.
Test yourself on each card. Read the question and say or write your answer before you turn the card over. Recalling it from memory is what makes it stick.
Be honest about how it went. Tap Again, Hard, Good or Easy, the same four buttons Anki uses (or swipe right if you knew it and left if you didn’t, like Quizlet). Cards you got wrong come back later in the same session; cards you knew come back after a few days, then a week, then longer.
Come back each day. The bar shows how many cards in your topic you know well. A little every day beats one long session the night before.
Check yourself with a quiz. Ten multiple-choice questions with the answer explained, and a link so a friend can take the same quiz.

Four ways to revise

Flashcards. Flip and mark each card; smart repeat works out what you need to see again and when.
Quiz. Ten questions from your topic with four answers each, your score, and every missed card explained.
Daily 10. Ten questions a day for each subject, the same for everyone. Keep your streak going and share your score.
My cards. Type your own questions and answers into blank cards, then revise them with smart repeat or a quiz. They’re saved on your device, and you can save a copy to move them.

What’s covered

GCSE subjects and topics

The cards follow the AQA GCSE (9–1) specifications, the most widely taken in England. Most of the content is the same for Edexcel, OCR and Eduqas, so they work for those boards too.

Chemistry

AQA GCSE Chemistry (8462) · 232 cards

Atomic structure and the periodic table (24)
Bonding, structure and properties of matter (24)
Quantitative chemistry (23)
Chemical changes (24)
Energy changes (22)
Rates and equilibrium (23)
Organic chemistry (23)
Chemical analysis (22)
Chemistry of the atmosphere (22)
Using resources (25)

Other GCSE flashcards: all subjects · Biology · Physics · Maths · English Literature · History

At a glance

Altto GCSE flashcards: quick facts

Updated 5 November 2026

Price: Free. No sign-up, no email, no trial and nothing to pay at the end.
Subjects: Chemistry.
Cards: 301 cards across 10 topics, each with a model answer and three wrong answers for quizzes.
Exam board: Written to follow the AQA GCSE (9–1) specifications; most cards suit Edexcel, OCR and Eduqas.
Tiers: Higher-only and triple-science-only cards are labelled, and you can hide them.
Smart repeat: Spaced repetition: cards you get wrong come back sooner, cards you know come back after 1, 3, 7, 16 and 35 days.
Your progress: Saved on your device. Nothing about you is uploaded unless you choose a free account to sync it.
Works on: Phones, tablets and computers, in any modern browser. Keyboard shortcuts on a computer.

Sample cards

Sample GCSE Chemistry flashcards

A few of the 301 cards, with their answers. Open the cards above to revise them all.

Atomic structure and the periodic table

What is a compound?: Two or more elements chemically combined in fixed proportions
Which scientist provided evidence for the neutron, about 20 years after the nucleus was accepted?: James Chadwick
How do the boiling points of the halogens change down Group 7?: They increase

Bonding, structure and properties of matter

What happens to electrons in ionic bonding?: They are transferred from a metal atom to a non-metal atom
Why does graphite conduct electricity?: Each carbon bonds to three others, leaving one delocalised electron per atom
What is a limitation of the simple particle model?: It shows particles as solid spheres with no forces between them

Quantitative chemistry

What is the law of conservation of mass?: No atoms are lost or made, so total mass of products equals total mass of reactants
How do you calculate the number of moles from a mass?: Moles = mass (g) ÷ Mr
25.0 cm³ of NaOH is neutralised by 20.0 cm³ of 0.10 mol/dm³ HCl. What is the NaOH concentration?: 0.080 mol/dm³

Chemical changes

In terms of oxygen, what is oxidation?: Gain of oxygen
What is the ionic equation for neutralisation?: H⁺(aq) + OH⁻(aq) → H₂O(l)
What is the half equation for chlorine forming at the anode?: 2Cl⁻ → Cl₂ + 2e⁻

Energy changes

What is an exothermic reaction?: One that transfers energy to the surroundings, so the temperature rises
Is bond breaking exothermic or endothermic?: Endothermic: energy is needed to break bonds
What is the only product made in a hydrogen fuel cell?: Water

Rates and equilibrium

How do you calculate the mean rate of a reaction?: Quantity of reactant used or product formed ÷ time taken
How does a catalyst increase the rate of reaction?: It provides a different pathway with a lower activation energy
What happens to a gaseous equilibrium if the pressure is increased?: It shifts towards the side with fewer molecules of gas

Organic chemistry

What is crude oil formed from?: The remains of ancient biomass, mainly plankton, buried in mud
What is the general formula of the alkenes?: CₙH₂ₙ
What do amino acids join to form by condensation polymerisation?: Polypeptides and proteins

Chemical analysis

What is a pure substance in chemistry?: A single element or compound, not mixed with anything else
What is the test for carbon dioxide?: Bubble it through limewater, which turns milky (cloudy)
What does the halide test with nitric acid and silver nitrate show?: Chloride white, bromide cream, iodide yellow precipitate

Chemistry of the atmosphere

What is the approximate composition of today's atmosphere?: About 80% nitrogen and 20% oxygen, with small amounts of other gases
Why is some greenhouse effect needed?: It keeps Earth warm enough to support life
Where does sulfur dioxide from fuels come from?: Sulfur impurities in the fuel reacting with oxygen when burned

Using resources

What is sustainable development?: Meeting the needs of people today without harming future generations' ability to meet theirs
What two things are needed for iron to rust?: Oxygen (air) and water
Why is 450 °C a compromise temperature in the Haber process?: A lower temperature gives a higher yield, but the rate would be too slow

FAQ

Frequently asked questions

Are there free GCSE Chemistry flashcards?

Yes. These 301 GCSE Chemistry flashcards are free, with no sign-up, no email and nothing to pay. Flip them, quiz yourself and let smart repeat bring the tricky ones back.

Which GCSE Chemistry topics are covered?

Atomic structure and the periodic table, Bonding, structure and properties of matter, Quantitative chemistry, Chemical changes, Energy changes, Rates and equilibrium, Organic chemistry, Chemical analysis, Chemistry of the atmosphere, Using resources. Each topic has its own cards and quiz.

Which exam board do the Chemistry flashcards follow?

They follow the AQA GCSE (9-1) specification (AQA GCSE Chemistry (8462)). Most of the content is the same for Edexcel, OCR and Eduqas, so they suit those boards too.

How does the smart repeat work?

It uses spaced repetition. After each card you say whether you knew it. Cards you did not know come back later in the same session; cards you knew come back after 1 day, then 3, 7, 16 and 35 days.

Can I make my own Chemistry flashcards?

Yes. Open My cards and type a question and its answer into a blank card. Make as many sets as you like, then revise them with the same smart repeat.

Is my progress saved?

Yes, in your browser on this device. Nothing about you is uploaded and you do not need an account.

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