What are the greatest inventions of all time? What were the worst technology failures? Did you know that they had toilets in Ancient Crete? How was the wheel invented? What happens if you strap the wi
There are forces at work all around us. Whenever you push a door open or slow down your bike, youre using friction and resistance. From warming your hands on a cold day to starting an engine, these fo
Get ready for the ride of your life! Physics controls the way our world works. From rollercoasters to rockets, hold on tight as you learn about the forces and factors that effect speed and acceleratio
What is the most impressive manmade thing you have ever seen? Have you been to the Great Pyramid at Giza? Maybe you got to watch a space shuttle take off? Have you made a trip through the Chunnel? Wha
Is the pressure getting to you? Water and air pressure, that is. Its all around usall the time. It never goes away but it can change. Those changes can affect big things like weather, as well as small
People talk a lot about drugs. But, what do they really mean? What does it mean if something is a stimulant or a narcotic? Is alcohol a drug? Can drugs really hurt you? And, if they are so bad for you
In this stimulating nonfiction book, readers will discover the various types of friction--including rolling friction, sliding friction, fluid friction, and static friction--and the huge impacts it has
Introduces major accomplishments in technology and the failures that accompany them, including plumbing, antibiotics, frozen food, electric light, computers, printing, the telephone, the wheel, and th
What is the most impressive manmade thing you have ever seen? Have you been to the Great Pyramid at Giza? Maybe you got to watch a space shuttle take off? Have you made a trip through the Chunnel? Wha
People talk a lot about drugs. But, what do they really mean? What does it mean if something is a stimulant or a narcotic? Is alcohol a drug? Can drugs really hurt you? And, if they are so bad for you
Explains the phenomenon of air and water pressure and how it works in plants and animals, including floating, life in the ocean depths, breathing, and its effects on weather, and suggests experiments.
Details the past, present, and future of deep space exploration, describing the planets and objects that occupy space as well as the tools and methods scientists use in their quest to learn more about
Details the past, present, and future of deep space exploration, describing the planets and objects that occupy space as well as the tools and methods scientists use in their quest to learn more about
Details the future of exploration, describing some of the things that future astronauts might encounter in the 22nd century, including black holes, wormholes, extraterrestrial life, and space robots.
With a focus on data analysis and probability, a guide to using leveled texts to differentiate instruction in mathematics offers fifteen different topics with high-interest text written at four differ
How much do you know about cigarettes and tobacco? Do you know where tobacco comes from originally? Do you know what happens to a persons body when they first start smoking? How much money do you thin
Sixty years ago, no one had traveled beyond planet Earth. But two enemies were competing in a race to space. Discover the exciting story that leads from WWII, through the Cold War, and, at last, to th
How much do you know about cigarettes and tobacco? Do you know where tobacco comes from originally? Do you know what happens to a person s body when they first start smoking? How much money do you thi
