D. J Ward
Author
Accelerated Reader
IL: LG - BL: 3.7 - AR Pts: 1
Language
English
Description
Machines are everywhere! They help make work easier, like when you need to lift something heavy or reach way up high. Some machines are so simple that you might not think of them as machines. There are six simple machines: the lever, the wheel and axle, the pulley, the ramp, the wedge, and the screw. Can you adjust a seesaw to lift an elephant? What happens when you combine two or more simple machines? Read and find out!
Author
Series
Accelerated Reader
IL: LG - BL: 4.3 - AR Pts: 1
Language
English
Formats
Description
Each person in the United States makes almost five pounds of trash every day. That's more trash per person per day than people make in any other country. What happens to our trash? How can we stop throwing so much stuff away? Read and find out!