World Of science 1
Matter and Chemicals
All substance matter and
chemicals from a pin head to a
star are made of atoms. The atoms
join or bond together to form
molecules Atoms and molecules can
separate and join together in
new combinations This is chemical
change Matter exists in three main
states solids liquids and gasses. In addition, Atoms are big things are made of smaller things. For an example, a log cabin is made of the dozen of logs.