Learn about the buildup of pressure and gravity with our complete hands on guide and learning material. With all the material to experience gravity, pressure, and many more about science. The package contains to explore the power of balloon.
Prop65 Warning - WARNING: This product can expose you to chemicals including DEHP, which is known to the State of California to cause cancer and/or reproductive harm. For more information, go to www.P65Warnings.ca.gov.