TalentJR apps
Engineers choose materials by their properties. Waterproof materials (plastic, rubber, metal, glass) keep water out — raincoats, tanks, boats. Flexible materials bend without breaking — ropes, belts, mats. Transparent materials let light through — windows and lenses. Metals and graphite conduct electricity, so copper is used inside wires; rubber, plastic, dry wood and glass insulate. Heat insulators such as wood and plastic make safe pot handles.
✓ You passed this lesson’s test.
Match the property to the job — “ask what the job needs most, then pick the material that has it”
Use it for: Science lessons on materials, design projects and choosing what to build a model from.
Check: A raincoat needs waterproof material instead ✓
▶ Watch it animatedWork it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.
🏅 Sign in with Google to earn the 🧱 Material Matcher badge when you pass — and a certificate when you finish all 8 lessons of Part 3 · Structures and materials. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
Sign in with Google to ask Free — 20 questions a day.
Prefer a real teacher? TalentJR teachers take live online classes anywhere in India and visit homes in selected cities. Tell us what you need and our team will call you with timings and fees.