ITV Programs By Subject Area

ITV Programs: Alphabetical Listing

ITV Block Schedule

Watch our ITV Programs Online

Proficiency Correlation

Videotape Library

Online Teacher Guides

ITV Programs Web sites

Membership Services

ITV Handbook (PDF File)

ITV Home

Four 20-minute lessons
Produced 2001
School-use rights: one year
Grades 1-4 / science
Closed Captioned
Video Library
5 S

Students discover that scientists define “work” very differently than most other people. To a scientist, work is accomplished when an object with resistance is moved a distance. Potential and kinetic energy and friction are also discussed.

1. Work and Energy
2. Lever, Wheel and Axle, Pulley
3. Inclined Plane, Wedge, Screw
4. Compound Machines