States of Matter by Tinybop 4+

Solids! Liquids! Gases‪!‬

Tinybop Inc.

Designed for iPad

    • 4.2 • 48 Ratings
    • $2.99



Everyday physics for kids!

Play with solids, liquids, and gasses! Discover how changes in temperature affect states of matter as you freeze soda, pop popcorn, melt gold, and more! Answer the burning question, “Does it melt?

**** American Library Association: ALSC Excellence in Early Learning Digital Media Award, Honors

States of Matter is No. 11 in Tinybop’s award-winning Explorer’s Library, a series of apps designed to introduce kids to big ideas. Other Explorer’s Library apps include The Human Body, Plants, Simple Machines, The Earth, Weather, Homes, Skyscrapers, Space, Mammals, and Coral Reef.

Each Explorer’s Library app teaches kids foundational science. Kids learn by playing, experimenting, observing, asking questions, making guesses, and finding answers. We hope each app inspires conversations between you and your kids and sparks more learning in the world around us.

+Freeze soda, pop popcorn, melt gold, and more!
+Explore the shape, color, behavior, sounds, and movement of different states of matter.
+Discover how different objects behave in extreme temperatures (from -500 °F to 5500 °F!). Watch solids melt, liquids freeze, and gases liquefy as you change the temperature.
+Explore phase changes and discover which changes cannot be reversed.
+Explore how molecules move at different temperatures.
+Discover which states of matter take the shape of the container they’re in.
+Discover the melting and freezing points of different objects.
+FREE States of Matter Handbook has technology tips and basic info for teachers and parents.
+Interactive text labels in 30+ languages teach vocabulary.
+Aligns with Next Generation Science Standards (NGSS).
+Fun for the whole family — play and learn together.
+No third-party advertising.
+Open-ended activities with no rules. Curiosity and creativity are rewarded.
+Original artwork by Jeanelle Mak Petrillo.
+Original sound design.

Privacy policy
We take your and your child’s privacy very seriously. We do not collect or share personal information about your child, nor do we allow any third-party advertising.

When the camera, microphone, and other services are used within an app, your information is neither collected nor distributed outside of the app.

Read our complete privacy policy at

Tinybop, Inc. is a Brooklyn-based studio of designers, engineers, and artists. We make toys for tomorrow. We’re all over the internet.
Visit us:
Follow us:
Like us:
Peek behind the scenes:

We love hearing your stories! Reach out:

Psst! It's not Tiny Bop, or Tiny Bob, or Tiny Pop. It's Tinybop! :)

What’s New

Version 2.0.4

Updated for the new iPads and iOS15!

Ratings and Reviews

4.2 out of 5
48 Ratings

48 Ratings

Tiara.Hati ,


This is so good ,I have 17 app for homeschool =
1. The Human Body
2. Skyscraper
3. Weather
4. Plants
5. Coral Reef
6. Earth
7. Creature Garden
8. The Robot Factory
9. Monster
10. Space
11. Me
12. Simple Machine
13. Skyscraper
14. Infinite Arcade
15. Mammals
16. Everything Machine
17. States Of Matter

That’s a lot and I want to give you some request =
1. How if you add feature in some app like =
- The Human Body = Add a Cell & DNA to discover
- Mammals = Add a Cell and other animals like Insect & Fish
- The Earth = Add Atmospheric Layer & Plate Tectonics

2. Some ideas for new app=
- Elements of the Periodic Table= There’s Element, Atoms, Nuclear, Radioactive, Molecules to discover and experiment.

- Transportations = There’s Tank, AAV, Jet, Car, Motorcycle to build & discover how it work.


Developer Response ,

Hi! We are so happy to hear that you are enjoying our apps. Thank you for all of these awesome suggestions! We will definitely keep them in mind when making updates to our apps and thinking of new ideas. If you have any other ideas - we'd love to hear them! Please feel free to email us at Thanks!

lambsauce12 ,

Amazing app

I love this game because I’m into science but I have a suggestion. You could add the 4th state of matter which is plasma. You would be able to look at how plasma interacts with different things.

Developer Response ,

We are so happy to hear that you are enjoying States of Matter! We would love to get plasma in the app too. What types of items would you want to see? Please feel free to email us at with any suggestions! Thanks!

MikeW338 ,

Awesome! Love so much!

I’m in fifth grade and this helped me soo much in my chemistry class!!! Dear Developers, I myself am starting to learn to programming and I can tell that your pretty good at what you do. You definitely listen to your fans and their ideas so just wanna say, good job, you make great games, and thank you for listening to my and many other peoples reviews!


-probably/hopefully everyone in the comments:)
(At least me😅)

Developer Response ,

We are so happy to hear that States of Matter is helping you in chemistry class and that you are enjoying the app in general! Please email us at if you learn anything in class that you think would be good to add to our app!!! 🔬📓🌟

App Privacy

The developer, Tinybop Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

More By This Developer


You Might Also Like