Introduce future engineers, inventors, naturalist, and artists to the physics and chemistry, biology and ecology that can be found in everyday play. Create chemical reactions, explore gravity and friction, transform states of matter, play with air pressure, and much more through 52 simpe experiments that zip and zoom, fly and fizz, bubble and burst.
Feel healthy? Germ-free?Guess again....Invaders are slinking around your body right now!Ready for a chance to take hold and hijack your cells.What will they do with your cels? They will use them t o make copies of themselves. These tiny trespassers invade fungi, plants, animals-even bacteria. No living thing is free of them. They are viruses and they spell big trouble in a tiny package.