In this fast-paced unit, students discover that "matter" matters. An engaging array of activities combined with interesting worksheets compliments the concepts brought forward in the student notes. Relating the study of matter, atoms, and molecules to the "real world" is essential. Students delight as they learn about DNA fingerprinting and why a grade two class eating pop and chocolate bars is important to the study of chemistry. Optional activities add flexibility and an element of fun to the unit. Finally, a lesson plan on atoms and molecules that will not give students that "glazed eye - dead fish" look. This Physical Science lesson provides a teacher and student section with a variety of reading passages, activities, crossword, word search and answer key to create a well-rounded lesson plan.