elements are grouped together into families as they have simliar properties. all the elements in each collum or period have imilar chamical properties.

elements are grouped together into families as they have simliar properties. all the elements in each collum or period have imilar chamical properties.

How is riding your bike similar to energy in the sun? Energy from the sun makes the grass grow like the chemicals in your body to transform the material into fuel that is used to move a bike.

first you guess where the first switch could be, then the second switch is in the trash can below of the first switch.

t t t 1S t

t t t 2S t

t t t t t

t t t t t

t t t t t

t of t is t is what you say t