Does air have weight? Why is the sky blue? What makes a cloud? Don’t just read the answers to these questions, find out for yourself by doing simple science projects. Robert Gardner presents experiments that use materials you can find in your home or at school. Young scientists can take what they’ve learned from these experiments and use suggestions to create their own unique science fair projects. Detailed explanations that follow the experiments explain the science used in each experiment. Supports the National Science Education Standards for K–4 Earth and Space Science.