Visar resultat för..."Ed Shems"

Sh-h-h-h-h-h!! Top Secret... Crack the code of superspy science fun! Make your own spy sunglasses* Write messages with invisible ink* Hook up a secret alarm, and much more! Discover how spies use science to keep--or uncover--top secrets.Learn how to go under cover, master Morse code, and even builddevices to see and hear through walls! These and dozens of otherfun-filled activities give you an inside look at the science behindspy gadgets and tricks of the trade. All the activities arecompletely safe and can be done with everyday stuff from around thehouse.

Dig into the science of ancient times and unearth amazing discoveries!* Have you ever wondered where paper comes from, who made the first known maps, or how the ancient Egyptians were able to build the pyramids?* Would you like to make your own sundial, discover how to detect earthquakes, or learn to write in hieroglyphics?* Are you looking for great ideas for your next science fair project? If you answered "Yes" to any of these questions, then Ancient Science is for you! From Greek lighthouses and Roman bridges to Chinese kites and Mesopotamian soap, you'll investigate some of the greatest scientific discoveries and the people who introduced them to the world. Dozens of fun-packed activities help you see for yourself how the earliest humans cultivated plants, why instruments make different sounds, how fireworks get their explosive power, and much more. All of the projects are safe and easy to do, and all you need is everyday stuff from around the house. So step back in time and take an amazing journey with Ancient Science!

Dive headfirst into the science behind sports----and come up a winner!* Have you ever wondered if there's a secret to stopping a soccer ball, why ice skates have metal blades, or how a boat can sail into the wind?* Would you like to learn to balance like a gymnast, how to improve your free-throw ability, or how to swim like a shark?* Are you looking for exciting ideas for your next science fair project? If you answered "Yes" to any of these questions, then Sports Science is for you! From basketball to biking to snowboarding and more, you'll discover the science behind all your favorite sports. Dozens of fun-filled activities help you see for yourself how a batter can hit a 90-mile-an-hour pitch, why a "spiral" is the best way to throw a football, how the surface of a ball affects its bounce, and much, much more. All of the projects are safe and easy to do, and all you need is everyday stuff from around the house. So take the plunge and get ready for Sports Science fun!