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Why does the red stuff in the thermometer go up and down? Temperature! Let the Sahara Desert and Antarctica show... Read More >>
The Physical Science series helps readers make sense of the world around them. Each book guides readers through... Read More >>
GCSE Physics OCR Gateway Workbook (A*-G course) Read More >>
GCSE Physics AQA Answers (for Workbook) (A*-G course) Read More >>
GCSE Physics OCR 21st Century Answers (for Workbook) (A*-G course) Read More >>
GCSE Physics Edexcel Answers (for Workbook) Read More >>
What do hammers, wheelbarrows, and brooms have in common? All of them are levers! Levers are simple machines. They... Read More >>
What do bicycles, doorknobs, and screwdrivers have in common? All of them use wheels and axles to perform work!... Read More >>
What do flagpoles and some window blinds have in common? They use pulleys to perform work! Pulleys are simple machines.... Read More >>
What do staircases, dump truck beds, and ramps have in common? All of them are inclined planes! Inclined planes... Read More >>
What do a doorstop, a butter knife, and the front of a boat have in common? All of them are wedges! Wedges are simple... Read More >>
What do jar tops and water-bottle lids have in common? Both of them are screws! Screws are simple machines. They... Read More >>
A baseball player slides on the ground to tag a base. A toy car's wheels rub against the floor and slow the toy... Read More >>
An airplane soars through the sky. A wind gust blows through the leaves. Objects are in motion all around you. But... Read More >>
A ball drops to the ground. Leaves fall from a tree. Gravity is at work all around you. But what exactly is gravity?... Read More >>
A rock sinks in the water. A hot air balloon floats in the air. Many objects float and sink. But what makes them... Read More >>
A colorful magnet holds a drawing to a fridge. Paperclips stick to a magnet. Magnetic forces are at work all around... Read More >>
You push a swing. Your brother pulls a wagon. Forces are at work all around you. But what exactly is a force? And... Read More >>
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Magnets stick to your refrigerator. Magnets make paperclips jump. Read more to find out the facts on magnets. Read More >>
In cartoon format, uses werewolves to explain and illustrate the science involved in states of matter. Read More >>
Science is all around us, all the time. Watch temperatures rise and gravity pull you back to Earth. See motion and... Read More >>