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WINTER / STEM + SENSORY
Melting Snowman Science Experiment
Build a tiny frozen snowman, then watch science take over.
- Mess: —
- Science
- Age
- Preschool
- Prep
- Freeze ahead
- Play
- 20–40 min
- Type
- Winter STEM + Sensory Play
Why we love it
Melting Snowman Science Experiment
Build a tiny frozen snowman, then watch science take over. In this simple winter STEM activity, preschoolers use warm water and droppers to investigate how ice changes as their snowman slowly melts. The playful setup turns temperature, cause and effect, prediction, and states of matter into something children can see and control one drop at a time.
How to set up melting snowman science experiment
Follow along at your own pace.
Step 1: Freeze the Snowman
Prepare the snowman ice form ahead of time using the existing source setup.
Step 2: Investigate the Ice
Let children observe and touch the frozen snowman and describe what they notice.
Step 3: Make a Prediction
Ask what they think will happen when warm water touches the ice.
Step 4: Add Warm Water
Use droppers or pipettes to add warm, not hot, water a little at a time.
Step 5: Watch It Change
Notice dripping, shrinking, cracking, puddles, and other visible changes.
Step 6: Follow the Water
Talk about how solid ice becomes liquid water as the snowman melts.
Skills hiding inside the play
STATES OF MATTER
Solid → liquid
TEMPERATURE
Temperature and melting
CAUSE AND EFFECT
Warm water causes visible changes to the ice.
PREDICTION
Prediction and observation
FINE MOTOR
Fine-motor control with droppers
VOCABULARY
Early science vocabulary
Vocabulary
- snowman
- ice
- frozen
- freeze
- melt
- melting
- solid
- liquid
- temperature
- warm
- cold
- predict
- observe
Conversation starters
How does the frozen snowman feel?
What do you predict will happen when we add warm water?
Where is the snowman melting fastest?
What changes can you see?
Is the ice still a solid after it melts?
Where did the melted snowman go?
What might happen if we use cooler water?
How many drops does it take to melt one small section?
Make it yours
Ways to change it up
Same setup, different challenge.
- COUNT THE DROPS
Count drops before checking for changes.
- WARM VS. COOL
Compare warm versus cooler water with adult supervision.
- TIME IT
Time how long different parts take to melt.
- COMPARE SHAPES
Make a second smaller or larger frozen shape and compare melting speed.
- SEQUENCE IT
Draw or verbally sequence solid → melting → liquid.
Questions parents ask
How do you do a melting snowman science experiment?
Freeze a snowman-shaped ice form, place it in a contained tray, and let children use droppers with warm water to slowly melt and investigate it.
What does a melting snowman experiment teach preschoolers?
It introduces temperature, melting, states of matter, prediction, observation, cause and effect, and fine-motor control.
Why does warm water melt ice faster?
The warmer water transfers heat to the ice, causing the solid ice to change into liquid water more quickly.
Do I need real snow for this activity?
No. The activity uses frozen water, so it works indoors even where there is no snow outside.