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7 terms

Science vocab

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Focal point
The point at which at which light rays passing through a lens come together
Concave lens
A lens that is thicker at the edges than it is in the middle
Retina
The light sensitive area at the back of the eye
Convex lens
A mirror that curves out ward
Reflecting telescope
An instrument for viewing distant objects that used a curved mirror at the of it's tube to gather light
Simple microscope
A microscope that uses a signal lens to magnify objects
Electron microscope
A viewing instrument that magnifies objects thousands of times by using a beam of electrons