Documents SOLAR ENERGY

SOLAR ENERGY As an alternative source HISTORY 7th Century B.C. Magnifying glass used to concentrate sunâs rays to make fire and to burn ants. 3rd Century B.C. Greeks and…

Documents The pupils constrict (become smaller because) they are taking in more light.

Slide 1 The pupils constrict (become smaller because) they are taking in more light. The pupils dilate (become bigger because) They are taking in less light. Snakes use heat…