Gilbert Gas Science Experiments is a book app teaching kids about gas, or carbon dioxide in particular. It is one of the book in a 26 science book series: The Quirkles apps. They are also available as print books. Gilbert Gas Science app is usually $10, and is free for limited time. However, if you missed the free app, you can download the eBook on Quirkles website when you sign up a free account. We have the download link at the bottom of this post. Gilbert Gas is one of the 26 Quirkles scientists. In this book, Gilbert Gas and his friend, Gary Goat will explain to kids what is carbon dioxide and what it is good for. Gary Goat dropped a bottle of “gola” on the ground and the bottle popped open making all the mess. What happened next?Kids will learn why the bottle popped open, and how plants need carbon dioxide to live. After reading the book, kids can try two hands-on science experiments. They will enjoy watching things pop, fizz, and blow up! There is no narration in the app. However, if kids like, they can record their own reading or parents’ reading on each page. After they record the reading, they can listen to the book read by a familiar voice. The app also has 3 games: matching, puzzles, and coloring. The contents of the book is for preschool to early elementary kids. However, the text is small, so kids will need someone to read the book to them. You can use the recording feature we mentioned earlier if kids want to read it themselves. If you missed the time window of the free app, you can download the eBook on Quirles website. You do need give your email on the site for them to send you a password. After receiving the email, you can sign in with you sign up email and the provided password, and download the free eBook and read it on your computer. To download the app while it is free, use the link below. It works on iPhone, iPod and iPad. If you would like to check it out or purchase it, please use the App Store link provided below. The cost is the same to you, but iGameMom gets a small percentage. Thanks for your support! Note: The link works for all countries. For more science apps for preschool kids, please visit Best Science Apps for Preschool Kids.