Thunder and lightning, wind, pressure and clouds are interesting phenomenon and Tot Talk's weather placemat has a graphical display to engage the youngest! How does our water cycle work? How do we measure temperature and pressure? What is pressure? Children will be engaged at the table with sun or rain outside the window learning about weather. Tot Talk's "Made in USA" double sided, educational placemats are thick and high quality. Use washable markers, and wipe clean with wet paper towels, or wash with warm water and dish soap for bacteria free learning. For extra fun, give your child a spray bottle, and they can spray it, and wash off their work and start over.