Rain & Puddles

For ages 5–7, teach the intuitive precursor to the water cycle: rain falls from clouds, and a drying puddle's water goes UP into the air (as invisible vapour we can't see), not out of existence. The core intellectual move is conservation — the water moved, it didn't vanish or only soak away — and that water can come back down as rain, a first up-and-down loop. Keep vocabulary everyday ('the sun warms the water and it goes into the air'); reserve 'evaporation/condensation/precipitation' for the later Water Cycle topic this feeds. Ground everything in first-hand, observable evidence before any diagram.

• 'The puddle just disappeared / dried up into nothing.' — The water still exists; it moved into the air as invisible vapour (conservation).
• 'The water only soaked into the ground.' — Some may, but a puddle on tarmac also shrinks because water goes UP into the air; both can happen.
• 'Clouds are made of smoke/cotton wool.' — Clouds are tiny water droplets; at this age keep it to 'clouds are made of water' without over-detailing.
• 'Rain comes from the sky' with no link to clouds — make the cloud→rain connection explicit.
• 'The sun boils the puddle away' — evaporation happens at ordinary warmth, not boiling; avoid implying it must be hot enough to boil.

• A time-lapse puddle shrinking under the sun, with a marked starting edge — the observable-conservation hook.
• Tiny 'invisible' water dots rising from the puddle to a cloud, then falling back as rain — a simple up-and-down loop.
• Cloud→rain→puddle→(up again) as a small circular arrow diagram, kept wordless/iconic.
• Everyday analogues: drying washing, a steamy mirror, a saucer of water left in the sun.

• Hook on the everyday mystery 'where does the puddle GO?' and land the conservation idea — the water went up into the air, it didn't cease to exist — which is the key intellectual move at this age.
• Use real, observable evidence: mark a puddle's edge in the morning and check it shrinking by afternoon; put water in a saucer in the sun; breathe on a cold window — first-hand before any diagram.
• Keep vocabulary everyday ('the sun warms the water and it goes into the air as tiny bits you can't see') and reserve 'evaporation/condensation/precipitation' for the 7-9 Water Cycle this leads into.
• Make the invisibility explicit and non-magical: the water becomes vapour we can't see — counter 'it just disappeared' with 'it's still there, just spread out in the air'.
• Close the loop simply: water that went up can come back down as rain, so it goes round — a gentle first cycle, not a labelled diagram.
• Connect to children's experience (wet washing drying, wet hair, steam from a bath) so the idea generalises beyond puddles.