Alison Eldridge

Understanding and Using Gamma Rays

Understanding and Using Microwaves

The Electromagnetic Spectrum

Beakers, Burners, and Balance Scales! Equipment in the Lab (Lab Logistics and Safety)

Let's Experiment! the Scientific Method in the Lab (Lab Logistics and Safety)

The Coolest Inventor (Inventors at Work!)

Investigate Club Drugs (Investigate Drugs)

Coolest Inventor, The: Willis Haviland Carrier and His Air Conditioner

Statue of Liberty, The: An American Symbol

American Flag, The: An American Symbol

White House, The: An American Symbol

Mount Rushmore: An American Symbol

Liberty Bell, The: An American Symbol

Bald Eagle, The: An American Symbol

The American Flag (All about American Symbols)

Mount Rushmore (All about American Symbols)

The White House (All about American Symbols)

The Bald Eagle (All about American Symbols)

The Statue of Liberty (All about American Symbols)

The Liberty Bell (All about American Symbols)