The Cat in the Hat Builds That 4+

Science & Engineering Games


    • 4.1 • 135 Ratings
    • Free



Do you want a science app?
The Cat in the Hat gives you that with a tap!
Kids play and learn in their backyard,
to see how science is fun, not hard!

Do you want a science app?
The Cat in the Hat gives you that with a tap!
Kids play and learn in their backyard,
to see how science is fun, not hard!

Based on the PBS KIDS series, “The Cat in the Hat Knows a Lot About That,” this app introduces pre-k kids to science inquiry and engineering (STEM) concepts through games tailored to their learning progress.

Kids can build bridges, explore friction through slides, sort fun objects and more in fantastical lands along with the Cat in the Hat, Nick and Sally. Not only is it fun, it gives pre-k kids a head-start on education!

As kids play educational games, they earn rewards to decorate their treehouse and backyard. The learning games unlock even more games that let them tinker and explore in their own way.

Includes simple and fun hands-on educational activities that parents and kids can do together, extending the STEM fun to home and everyday materials.


- 5 entertaining games focusing on key science concepts
- Learn measurements and how sturdy materials are in Bridge-a-rama
- Develop organizational and identification skills with Sorta-ma-gogo
- Learn about physics, momentum, and surface tension in Slidea-ma-zoo with Thing 1 & Thing 2
- Discover sounds and pitch by creating musical instruments in Sounda-pa-looza
- Build your very own color mixing invention to help paint a masterpiece in Builda-ma-loo

- Parental notes and suggestions to help foster the learning experience
- Thought experiments for the growing mind
- Hands-on activities for each game
- Drawing prompts to inspire creativity, planning and reflection

- Customize a treehouse and backyard that grows the more you play
- 4 “Cat in in the Hat”-inspired tools to help make science discoveries
- Grow a garden by being curious and perseverance through game play

- English and Spanish language options available
- Closed captioning support included

Make learning fun with STEM games from the Cat in the Hat and all his friends! Download now!

About the Cat in the Hat Knows A Lot About That!
Voiced by award-winning actor Martin Short, Dr. Seuss's The Cat in the Hat guides friends Sally and Nick - with a little help from the Fish, Thing 1 and Thing 2 - on fun-filled adventures where they explore science and engineering concepts.

Filled with both adventure and silliness, THE CAT IN THE HAT KNOWS A LOT ABOUT THAT!, based on the acclaimed The Cat in the Hat's Learning Library book series, appeals to preschoolers' natural curiosity, engaging them in the process of scientific exploration and discovery.
For more fun with The Cat in the Hat Knows A Lot About That, visit

The Cat in the Hat Builds That app is part of PBS KIDS’ ongoing commitment to helping kids build the skills they need to succeed in school and in life. PBS KIDS, the number one educational media brand for kids, offers all children the opportunity to explore new ideas and new worlds through television and digital media, as well as community-based programs.

For more PBS KIDS apps, visit

The Cat in the Hat Builds That app was created as part of the Corporation for Public Broadcasting (CPB) and PBS Ready To Learn Initiative with funding from the U.S. Department of Education. The contents of the app were developed under a cooperative agreement #U295A150003, from the U.S. Department of Education. However, these contents do not necessarily represent the policy of the Department of Education, and you should not assume endorsement by the Federal Government.

Across all media platforms, PBS KIDS is committed to creating a safe and secure environment for children and families and being transparent about what information is collected from users. To learn more about PBS KIDS’ privacy policy, visit

What’s New

Version 3.0.1

Game fixes were made by Thing 2 and Thing 1,
the snowman and snow hats are just about done!
Come back to the backyard for some sunny play
Keep learning little engineers, day after day!

Ratings and Reviews

4.1 out of 5
135 Ratings

135 Ratings

@Cookiebae IG ,

Great skills but not enough games

My daughter just turned 3, we love this app. No ads, which is very important to me. I see a lot of ppl complaining about a sound issue but we didn’t have that trouble. I was worried that she would be too young to understand science concepts but the ideas in the games are simplified for young minds and presented in fun ways. Perfect intro to problem solving skills. But I wish there were more levels! She just finished the three different games (Thing1&2 with the slides, the dragon with building bridges, and a ram with the sorting game) I thought finishing the sorting game would unlock a new one but it didn’t. Overall there was enough game time for it being free but I guess we’re finished with what it has to offer.

LizzaDT ,

Great app - take your phone off silent for sound

It took us a while to figure out how to use the sound. But my daughter did a good job exploring without it which was good to learn rather then told what to do. Now we have the option to try first and then turn the sound on if we need help!

Developer Response ,

Hi LizzaDT, We are so excited that you and your daughter are enjoying the app! Thank you for your support. - The PBS KIDS Team

123456786433567asfrdcvhug ,

Amazing game

I love this game because you can learn different things and it has no problems and app purchases!It’s free thanks for this engineering game 💖😍🥳🤗

App Privacy

The developer, PBS KIDS, 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

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

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