Can your Primary 6 do this?
💧 Solid, Liquid, Gas · free to play, no signup
Sort these into: use a sieve, use a filter, or let it evaporate.
🕳️
Use a sieve
🧻
Use a filter
☀️
Let it evaporate
Pool
Rice with stones mixed in
Baking soda fully dissolved in water
Chalk dust stirred into water
Done!