Our 4M Weather Science Kit allows you to explore the water cycle and global warming, create clouds, experiment with acid rain and much more. Award winning Green Science introduces kids to green concepts such as repurposing, upcycling and alternative energy. These exciting activities will help you understand how our weather works. You can experiment with static electricity which causes lightning, build a desktop water cycle model, and even make clouds in your palm. Watch air currents that produce wind and study the greenhouse effect and acid rain. This item is not intended for children under the age of 8. Challenge your child's imagination with 4M toys and kits. Details: Multicolor 8.5" x 2.5" x 6.75" Detailed instructions included For ages 8 and up