Adele D. Richardson

Thermometers (Science Tools) (First Facts)

Insects (First Facts) (Exploring the Animal Kingdom)

Balances (Science Tools) (First Facts: Science Tools)

Amphibians (First Facts) (Exploring the Animal Kingdom)

Microscopes (Science Tools)

Mammals (First Facts: Exploring the Animal Kingdom) (Exploring the Animal Kingdom)

Fish (Exploring the Animal Kingdom) (First Facts)

Birds (Exploring the Animal Kingdom) (Birds)

Delivery Trucks (Transportation Library)

Transport Helicopters (Transportation Library)

Reptiles (Exploring the Animal Kingdom)

Cargo Ships (Transportation Library)

Freight Trains (Transportation Library)

Compasses (First Facts) (Science Tools)

Astronauts (Above & Beyond S.)

NASA

Space Shuttle

Money (Let's Investigate S.)

Radio Astronomy

Journey to Mars

Hubble Space Telescope (Above and Beyond)

Eagles (Let's investigate) (First Facts: Birds) (Wild World of Animals)

Silk (Let's Investigate S.)

Mexico (Let's investigate)