Talk over the theory with the group and then glue the white sheets which explain Dalton's Atomic theory on to the back of their sheets. Have everyone write their names on their sheets please. Atoms of the same element are identical. The atoms of any one element are different from those of any other element. Atoms of different elements can combine with one another in simple whole number ratios to form compounds.
Chemical reactions occur when atoms are separated, joined, or rearranged.
However, atoms of one element are not changed into atoms of another by a chemical reaction. Link to activities for younger students .