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Science
States of Matter by Tinybop
A virtual thermometer controls whether materials melt, solidify or turn to gas, with a view of how the molecules move.
Turning the temperature up or down changes the state of materials on screen, and a closer view shows the molecular movement. Children can also compare which changes reverse and which don’t.
- Ages
- Children; store category 6–8
- Works on
- iPhone and iPad
- Format
- Self-paced
- Topics
- Science
- Listed
- 2026-10-10
Rated 4.2 from 51 ratings on the US Apple App Store (checked 2026-10-10).
What kids do
- Adjust a virtual thermometer
- Watch materials melt, solidify and turn to gas
- Look at molecular movement
- Compare reversible changes
Who it suits
Listed in the App Store’s Made for Ages 6–8 category. Tinybop’s own line is that its apps are tested with children from four up.
Notes for parents
All the heating and cooling happens inside the simulation. The question of which changes can be undone could start a conversation away from the screen.
Visit States of Matter by Tinybop
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