George Graybill: 6 books

Just how simple are simple machines? Our resource makes these machines simple to teach and easy to learn. Understand that work is when a thing moves in the direction that a force is acting on it. Conduct an experiment with first-class levers to study distance and force. Explain how a wheel and axle...

Discover what matter is and what it isn't. Our resource breaks down the physical and chemical properties of matter to make it more accessible to students. Start off by identifying matter as atoms, particles and molecules. Then, explore the three states of matter: solid, liquid and gas. Determine whether...

Young scientists will be thrilled to explore the invisible world of atoms, molecules and elements. Our resource makes the periodic table easier to understand. Begin by answering, what are atoms? See how the atomic model is made up of electrons, protons and neutrons. Find out what a molecule is, and...

Forces are at work all around us. Our resource makes this invisible world easy to "see" and understand. Start by identifying what a force is before looking at different kinds of forces. Conduct several experiments on the force of friction and air resistance. Learn about net force and how more than...

Take the mystery out of motion. Our resource gives you everything you need to teach young scientists about motion. Start off by learning about speed and distance. Recognize if things are standing still or in motion. Graph the velocity of students walking home from school at different speeds. Identify...

Unlock the mysteries of energy. Our resource demonstrates how energy is more than "the ability to do work". Learn about all the different kinds of energy. Dissect mechanical energy by identifying the different points on a roller coaster as using kinetic or potential energy. Find out how an object's...