Science experimentation without the mess! Thank you, Piiig Labs, for this inquisitive app that brings science-friendly activities to preschoolers. The budding scientist in your house will love making a volcano erupt, building a light bulb, and tinkering with a radio. The app touches on themes such as electricity, chemical reactions, and cause and effect relationships with age-appropriate activities that are designed for children ages 3-6. In addition, each experiment is accompanied by a short science fact for kids. The app is $2.99 and is available for iPad only.