Inv 1, Creative Solutions

Inv 1, Looking at Leaves

Inv 1, Rubbings

Inv 1, A Close Look at the World

Inv 1, A Self-Made Inventor

Inv 2, Fingerprints

Inv 2, Super Twins

Inv 2, Covering Up Her Mistakes

Inv 2, An Inventive Farmer

Inv 3, Chromatography

Inv 3, Shoes of the World

Inv 3, Improving the Computer

Inv 4, From Rags to Science: A Story of Michael Faraday

Inv 4, Throw a Little Light on Sight

Inv 4, Into the Shadows

Inv 4, Making Mirrors

Inv 4, Looking at the Sky

Inv 4, Kid Inventors

Glossary