Text and illustrations provide an introduction to wedges and inclined planes, showing how these simple machines can be used to make a salad and other tasks.
"Is it easier to lift a bag full of toys with an inclined plane or a pulley? Readers will see how a group of kids compares two simple machines and decides which one does a better job."--Provided by Publisher.
"Is it easier to lift toys with a wheel and axle or a wedge? Readers will learn about how simple machines work in this book for early readers"--Provided by publisher.
"Is it easier to move produce with a lever or a wheel and axle? Readers will learn about how simple machines work in this book for early readers."--Provided by publisher.
"Is it easier to move ice with a lever or a screw? Readers will see how a group of kids compares two simple machines and decides which one does a better job at moving the ice."--Provide by publisher.
