Simple Machines: Forces in Action
SCIENCE. This title looks at core curriculum science topics through the lens of "Do it Yourself" guides, providing a fun approach and reinforcing knowledge of the instructional text type. Uncompromisingly high-interest subject matter motivates reluctant learners, and the use of Instructional Text Type gives additional literacy focus to the series. Step by step instructions help learners develop new practical skills. Ages 8+.
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activity n/ou adult to strike amount of effort amount of force Archimedes Archimedes'screw attached Bicycle wheels bike blades block of wood broom handles changes the direction direction of force double pulley easier to lift edge effort needed effort to move first-class lever fixed pulley Food coloring friction fulcrum heavy load hole hole puncher inclined plane wrapped increasing the distance irrigation jackhammer lever arm lift a heavy lift a load lift water load moves long string Measure and record moveable pulley n/ou will need needed to lift object pedals pencil pinwheel ramp record the length record the number requires more effort rocks roller roller skate ruler screwdriver second-class lever seesaw side single pulley skateboard skyscraper spool Steps to follow straw tape thick nail thin nail thin wedge third-class lever travels tubing twist tie types of simple wedge changes wedge-shaped wheel and axle wheelbarrow windmill