Ages 15–16
BrainteenAges 15–16ScienceWorksheet
Moles, concentration and gas volumes (GCSE-style Higher)
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Show your working and give units. Use the relative atomic masses (Ar) given in each question. Where an answer is not exact, round it to the number of significant figures or decimal places the question asks for.
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About this activity
What your child practises
Practising key skills with a ready-to-use activity.
What’s included
- 10 questions
- An answer key you can print with the sheet or on its own
- An on-screen version with instant marking and stars
Age and school year
Made for ages 15–16. That’s Grade 10–11 in the US, Year 11–12 in England, SS 1–2 in Nigeria and Class 10–11 in India.
How to use it
- Print it at home or school – it fits a standard A4 or US Letter page.
- Print the answer key too, so marking takes seconds.
- Play it on screen: answers are marked instantly and children earn stars.
- Write on it on a tablet or touchscreen with a finger or stylus – no printer needed.
Tips for parents and teachers
- Say new words out loud and use each one in a sentence – hearing and using words is how they stick.
- Do it on screen first for instant marking, then print it a few days later to see what was remembered.
- Treat mistakes as information: note what went wrong next to each incorrect answer.
Good to know
- Time needed
- About 15–25 minutes
- You’ll need
- A printer (or a tablet to work on screen), a pencil and an eraser
- Difficulty
- Hardest (GCSE-style Higher) – pitched at ages 15–16
- Answer key
- Yes – print it with the sheet or on its own