Solar Balloon Kid’s Science The black surface of the Solar Balloon once you fill it acts as a solar collector. It heats the air until it expands and is lighter than the surrounding atmosphere causing it to rise like a hotair balloon. Solar balloons works best in direct sunlight when air temperature is somewhat cool with little wind. Makes a great school or science project! Features

• 8 Feet Long!
• The Sun Makes It Rise
• Includes 1(one) 8 foot Solar Balloon
• 20 Feet of String
• Instruction Sheet