States of matter
Kindergarten · Science
Look closely, sort your discoveries and ask why things happen.
Choose a game
Take your time, try a game and collect stars.
Melt or freeze?
Does a popsicle melt or freeze on a hot day? Sort warm and cold changes in this
Play Melt or freeze?
Learning about states of matter
These Kindergarten Science games practice Melt or freeze?. Choose a game above for a short activity, or explore the examples below before you play. The full guide for each game explains its controls, gives more examples and includes a free printable for practice away from the screen.
Talk it through
Start with something you can observe. Ask your child to describe the evidence for a choice, then compare a second example. A game practices vocabulary and reasoning; practical observation and investigation matter too.
Ask: “What clue helped you decide?” Give your child time to explain. Return to an example after playing and ask whether they would approach it differently.
Melt or freeze?
Warmth can melt a solid into a liquid. Cold can freeze a liquid into a solid. A popsicle melts on a hot day.
Try an example: 🧊 An ice cube in the sun
The sun warms it up.
Show the answer
Melts
What to look out for
Thinking freezing means getting cold Freezing is when a liquid turns solid.
Practice away from the screen
- Freeze juice into lollies, then watch one melt.
Curriculum connections
Melt or freeze?
Suggested Kindergarten practice, selected by skill and reading demand. US states and schools teach these topics in different grades; this is not a state-standards alignment claim.
Next Generation Science Standards teaching connection: PS1: heating and cooling. Sorting melt and freeze gives learners words for changes they can try with safe household items. Follow the game by watching an ice cube in a warm room and talking about what changed. This is a teaching connection, not a claim that the game meets a performance expectation. Read the framework.
Questions families ask
Where should we start with states of matter?
Start with Melt or freeze?. Look at the worked example together, then try a round. If the task feels unfamiliar, use the full game guide or its free printable before trying again.
Does this cover everything taught at this level?
No. These games provide focused practice. Grade suggestions do not replace your school’s curriculum, and any Common Core connection applies only to the skill described.