Class 7 Maths and Science Quiz
Practise Class 7 maths and science with a free quiz of 5, 10, 15 or 20 questions. Half maths, half science, matched to Class 7 (Grade 7, UK Year 8, ages 12 to 13), with the right answer and a short explanation after every question.
Choose your quiz length
How many questions would you like? 10 questions means 5 math + 5 science.
What the Class 7 quiz covers
Maths
- Solving equations
- Squares, roots and order of operations
- Ratio and angles
- Percentages and the mean
Science
- Atoms, elements and compounds
- Cells and respiration
- Acids and alkalis
- Density and sound
Class 7 sample questions with answers
Class 7 is Grade 7 in the US and Year 8 in England (ages 12 to 13). These sample questions show the level; the quiz gives new maths numbers every round and mixes in science from a bank written for this class.
| Subject | Question | Answer | Why |
|---|---|---|---|
| Maths | What is 75% of 320? | 240 | 75% of 320 = 75 ÷ 100 × 320 = 240. |
| Maths | Solve for x: 8x + 16 = 128 | 14 | Subtract 16: 8x = 112. Divide by 8: x = 14. |
| Maths | A rectangle is 8 m long and 8 m wide. What is its perimeter (m)? | 32 | Perimeter = 2 × (8 + 8) = 32 m. |
| Maths | What is the mean of 30, 37, 24, 25, 44? | 32 | The numbers add up to 160. 160 ÷ 5 = 32. |
| Science | What is the smallest unit of an element? | Atom | An atom is the smallest unit of an element. |
| Science | What is the chemical symbol for oxygen? | O | Oxygen's symbol is O. |
| Science | Which part of a plant cell contains chlorophyll? | Chloroplast | Chloroplasts hold the green chlorophyll. |
| Science | What is the unit of energy? | Joule | Energy is measured in joules. |
Frequently Asked Questions (FAQs)
Maths covers solving equations, squares, roots and order of operations, ratio and angles, percentages and the mean. Science covers atoms, elements and compounds, cells and respiration, acids and alkalis, density and sound.
Class 7 matches Grade 7 in the US and Year 8 in England, for children aged about 12 to 13.
Yes. After every question the right answer is highlighted with a short explanation, and the results page lets you review every question.
You choose 5, 10, 15 or 20 questions. Even lengths are exactly half maths and half science, and the maths numbers change every round.
Yes. There is no sign-up, and it works on phones, tablets and computers.
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