Materials and forces quiz
Solids, liquids and gases, materials, changes, light, sound and forces. Written for ages 5–10 and 11–16 — if you choose another level, the nearest questions are used.
The kind of thing you'll be asked
Examples only — your own questions are built fresh, with different names and numbers every time.
How can you get salt back from salty water?
- Evaporate the water
- Filter it
- Freeze it
- Stir it
Answer: Evaporate the water — Dissolved salt passes through a filter, but evaporating the water leaves the salt behind.
Why are cooking-pot handles often made of plastic or wood?
- They do not let heat through easily
- They are heavier
- They conduct heat well
- They are magnetic
Answer: They do not let heat through easily — Plastic and wood are insulators, so the handle stays cool enough to hold.
What are the three common states of matter?
- Solid, liquid and gas
- Hot, warm and cold
- Rock, water and air
- Big, medium and small
Answer: Solid, liquid and gas — Matter can be solid (fixed shape), liquid (flows) or gas (spreads out to fill a space).