Frozen Dinosaur Ice Rescue

Dinos trapped in an ice block, freed with warm water, salt and a pipette.

Ages 3–7Prep 10 min · Activity 30 minSome messIndoor or outdoorSensory PlayEasy

By WonderCraft Kids Editorial Team, Editorial team · Updated 18 July 2026

This one looks like play and is quietly a chemistry lesson. Children test warm water, salt and brute force against a block of ice and discover which actually works fastest — all while rescuing very patient plastic dinosaurs.

What you need

A plastic tub or large bowl
8-10 small plastic dinosaurs or animals
Warm water in a jug
Table salt in a shaker
Pipettes or a turkey baster
Towels

Step by step

1
Half-fill the tub with water, add the figures, and freeze until solid (four hours or overnight).
2
Freeze in two layers if you want them suspended in the middle rather than all on the bottom.
3
Turn the block out into a tray outdoors or on towels.
4
Offer three tools: warm water in a pipette, a salt shaker, a spoon.
5
Ask which one works fastest and let them find out rather than telling them.
6
Count the rescues as they come free.

What kids learn

States of matter

Solid to liquid, in front of them, with their own hands speeding it up.

Fair testing

Trying one variable at a time is the foundation of every science experiment they will ever run.

Vocabulary

Melt, dissolve, freeze, faster, slower — technical words attached to real events.

Make it easier

Freeze a thin tray so figures pop out in minutes, and use a jug of warm water only.

Make it more challenging

Run a timed comparison: salt block versus warm-water block versus room-temperature block, recorded on paper.

Safety and supervision

Use hand-warm, not hot, water — under 38°C / 100°F — and test it on your wrist first.
Ice blocks are heavy and slippery; adults do the turning out.
Keep salt away from eyes and wash hands afterwards.

Adult supervision is required for every activity on this site. Read our full child safety guidelines.

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