Science Project for Class 7
Class 7 science projects you can do with household things, matched to this year's topics such as acids and bases, electric circuits, heat transfer, changes around us and light, plus a ready project file.
- 100% free
- No sign-up
- Runs in your browser
- Updated October 2026
1Find a project idea
Things I have at home
Tick what you have. You'll see only projects that need nothing else (paper, pens, scissors, tape and water are assumed).
87 project ideas
Every idea uses safe, everyday things. Steps marked "with an adult" involve heat, sharp tools or electricity from cells: do them only with an adult. Never use mains electricity or strong chemicals.
2Project report details
Pick "Use in my report" on any idea above to fill the aim, materials and steps, or type your own.
3Design and pages
Cover page design Colour Pages in the file4Write-up
Leave a box empty to get ruled lines in the file, so you can write it by hand after the experiment.
A4 pages, ready to print and put in your project file. The Word file lets you change anything. Your details are saved in this browser only.
Class 7: projects where things change colour, rust and conduct
Class 7 science is full of things you can watch happen: a yellow paper strip turning red-brown, a nail slowly rusting, a bulb lighting when a circuit closes, water drops appearing inside a bag tied over a leaf. That makes it one of the best years for experiment-style projects. The list above opens on Class 7 and shows the ideas that match this year's topics first.
Top picks by topic
| Topic | Project | Time |
|---|---|---|
| Acids, bases and neutral substances | Turmeric paper tester; china rose indicator | Under an hour |
| Electricity and circuits | Conductor or insulator tester; simple circuit with a switch | Under an hour |
| Heat transfer | Which spoon gets hot first; convection currents in water | Under an hour |
| Changes around us | Physical or chemical change; what makes iron rust | An hour; a week for rusting |
| Light | Cardboard periscope | One day |
| Life processes in plants | Transpiration with a plastic bag | One day |
| Time and motion | Pendulum and time | Under an hour |
Your board's chapter names may differ. Match the project to the chapter your teacher mentions.
How to make a class 7 project stand out
- Use a control. In the transpiration project, a bag over a stick with no leaves is the control. In the rusting project, the nail in the dry jar is one. A control shows that the thing you changed made the difference.
- Make a results table. For the indicator projects, list every sample with its colour and whether it is acidic, basic or neutral. For the pendulum, list the length and the time for 20 swings.
- Add a graph. Plot pendulum length against swing time, or temperature against time for the convection or solar projects. A simple line graph on squared paper adds a lot.
- Explain the science in your own words. Each idea has a "What it shows" section. Read it, then write the conclusion without copying it.
Safety for class 7 experiments
Several class 7 projects use warm water, so an adult should prepare and pour it. Circuits use only AA or torch cells; never touch plug points or house wiring. Don't taste any sample in the acid and base tests, even lemon juice that has been near other samples. Turmeric stains, so wear old clothes.
From idea to project file
Tap "Use in my report" on any idea, then add your details below. The file includes the cover, a certificate for your teacher to sign, an acknowledgement, an index with page numbers, and the write-up pages. Type your observations after the experiment, or print ruled lines and fill them in by hand. Download the A4 PDF or the Word file if you want to change the wording.
More science project pages
Need more options? Open the full Science Project Ideas & Report Maker.
Frequently asked questions
What is a good acids and bases project for class 7?
Make a natural indicator from turmeric or china rose (gudhal) petals and test lemon juice, vinegar, soap solution, baking soda solution and sugar water. Record the colour each one turns and sort them into acidic, basic and neutral.
Which electricity project is safe for class 7?
Use only AA or torch cells: a simple circuit with a paper-clip switch, a tester that sorts conductors from insulators, or an electric quiz board. Never use plug points or mains wires for a project.
How do I show heat transfer at home?
Compare steel, plastic and wooden spoons in hot water to show conduction, or watch warm red water and cold blue water move in a bowl to show convection. An adult should handle the hot water.
How many days does the rusting project take?
About a week. Set up four nails (dry air, water and air, boiled water under oil, and salt water) and look at them every day. Photograph them so you can compare.
Do I need a working model for class 7?
Not necessarily. A careful experiment with a clear observation table is as good as a model for most school projects. Ask your teacher if they want a model specifically.