The document discusses the differences between physical and chemical changes. A physical change alters a substance's properties like shape, size or state but does not change its chemical makeup. A chemical change creates new substances through molecular rearrangement. Examples of physical changes include cutting paper or crushing aspirin while chemical changes include burning logs or breaking down water into hydrogen and oxygen.

1. Physical and Chemical
Changes

2. Chemical/Physical Change:
Differentiate
 The learner will be able to
(ESSENTIAL) distinguish
between a physical and
chemical change.

3. Matter
 Matter is everywhere.
 Matter is anything that takes up
space and has mass.
 Matter is constantly experiencing
both chemical and physical
changes.

4. Physical Change
 Physical changes occur when
matter changes its property but not
its chemical nature.
 Physical property changes could
include a change in: texture, shape,
size, color, change of state, volume,
mass, weight, and density.

5. Physical Change

6. Chemical Change
 Chemical changes are changes
matter undergoes when it becomes
new or different matter. A new
substance is formed.
 To identify a chemical change look
for signs such as color change, odor,
bubbling and fizzing, light production,
smoke, and presence of heat.

7. Chemical Change
 A chemical change
occurs when fireworks
are used. Fireworks
are made of metals
such as magnesium
and copper. These
change chemically as
they light up the sky.

8. Is it a chemical or physical change?
 Sugar dissolving
in tea
•Chemical Change
•Physical Change

9. Is it a chemical or physical change?
 Logs burning
•Chemical Change
•Physical Change

10. Is it a chemical or physical change?
 Breaking water up by
separating it into hydrogen
and oxygen
•Chemical Change
•Physical Change

11. Is it a chemical or physical change?
 Cutting paper
•Chemical Change
•Physical Change

12. Is it a chemical or physical change?
 Crushing an
aspirin
•Chemical Change
•Physical Change

13. Is it a chemical or physical change?
 Metal rusting
•Chemical Change
•Physical Change

14. Is it a chemical or physical change?
 Lighter fluid
burining
•Chemical Change
•Physical Change

15. Is it a chemical or physical change?
 An egg rotting
•Chemical Change
•Physical Change

16. Is it a chemical or physical change?
 An egg breaking
•Chemical Change
•Physical Change

17. Writing Activity
 Write a detailed paragraph (at
least 6 sentences) about the
difference between a chemical
and physical change. Give
examples of each.