Article
PBS

Pbs Learning Media: Diamonds: The Science Behind the Sparkle

For Students 9th - 10th
This illustrated essay from the NOVA Web site explains why the atomic structure of a diamond slows down light and produces a sparkle more brilliant than from any other colorless substance.
Interactive
PBS

Pbs Learning Media: Floating and Sinking: Hot Air Balloons

For Students 9th - 10th
Why do hot air balloons float? This resource from the NOVA Web site offers a series of interactive activities that illustrates the physics of hot air balloons.
Interactive
PBS

Pbs Learning Media: Technology Timeline

For Students 9th - 10th
This interactive timeline from the AMERICAN EXPERIENCE Web site features influential technological innovations from 1750 to 1990.
Lesson Plan
Alabama Learning Exchange

Alex: The Life Cycle of Ferns, a Seedless Vascular Plant

For Teachers 9th - 10th
Students will listen, watch, and read while the teacher goes over the life cycle of the ferns. Students will then use the textbook or Internet websites to draw, label, decorate, or color the life cycle of ferns. Students will also use...