Illustrated lessons: Age 12
60 illustrated lessons for Age 12, by subject.
Biology
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Rods and Cones in the Eye -
Genes and Traits -
Eyes, Ears, and the Fear Switch -
Cat Purr Vibrations -
Virus Entering a Cell -
Underground Root Threads -
Sunlit Slope and Rising Air -
Warm Sand Nest -
Warm Sand and Sea Turtle Eggs -
Air's Path Through the Body -
Giraffe Bending to Drink -
Warm Sand, Cool Sand -
Muscle pairs at the elbow -
Animals Carry Seeds -
Same Bones, Different Jobs