contents of table Let’s Study Simple Machines 4 Glossary 24 Index 24 About the author Katie Marsico is the author of more than 200 reference books for children and young adults She lives with her husband and six children near Chicago Illinois About the illustrator Jeff Bane and his two business partners own a studio along the American River in Folsom California home of the 1849 Gold Rush When Jeff’s not sketching or illustrating for clients he’s either swimming or kayaking in the river to relax 3
Let's Study Simple Machines Machines make work easier Some machines are really simple You may surprised be
