SIMPLE MACHINES

 

 

 

 

CALIFORNIA STANDARDS - 7th grade

6.Physical principles underlie biological structures and functions. As a basis for understanding this concept:

h. Students know how to compare joints in the body (wrist, shoulder, thigh) with structures used in machines and simple devices (hinge, ball-and-socket, and sliding joints). i. Students know how levers confer mechanical advantage and how the application of this principle applies to the musculoskeletal system.

j. Students know that contractions of the heart generate blood pressure and that heart valves prevent backflow of blood in the circulatory system.

POWERPOINT PRESENTATIONS

 

HISTORY / SCIENCE PROJECT

Build a K'Nex Trebuchet

WEBSITES for more information

Levers                Levers in the Human Body       Pulleys

Simple Machines Learning Site         Simple Machines (Mikids)

Inventor's Toolbox                        Rube Goldberg -ZOOM project

Simple Machines (Appliance Help) - Thanks for the addition Jackie!

VIDEO                        

Roman War Machine -Catapult               The Ballista - building

Table-top Trebuchet            

Simple Machines in Everyday Life (Thank you Sarah Washington - Valley Book Club for this suggestion)

Work and the Simple Machine             Rube Goldberg Project

Rube Goldberg Project 2                     Rube Goldberg Project 3