u7 wk 1&2
What does the word "element" mean?
A chemical element is a basic substance. It cannot be broken down into simpler substances. A single type of Atom.
What does the word "herd" mean?
a number of animals of one kind kept or living together a herd of cows.
What does the word "sod" mean?
the layer of ground that contains the grass; turf.