The Earth is round -- The Copernican model opens up the universe -- Gravity leads to modern physics -- Fossils reveal the past -- Oxygen makes way for chemistry -- Vaccinations keep people healthy -- Electricity powers modern life -- Pasteurization kills bacteria -- Evolution explains the origin of life -- DNA unlocks the mystery of genes -- Plant breeding feeds the world -- Climate change alters habits.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.