This document summarizes the differences between physical and chemical changes in matter. It defines matter as anything that occupies space and has mass. A physical change alters the form of matter but does not create a new substance, and may be reversible. A chemical change produces a new substance that cannot be changed back to the original by ordinary means. Examples of each type of change are provided for classification exercises.

1. Changes that Matter Undergo

2. 
Is anything that make up any object,
occupies space, has mass and composed
of atoms.
Matter

3. Physical Change
and
Chemical Change

4. 
No new substance is created, although the
matter may take different form.
Physical Change

A change in physical appearance of
matter.

Changes may be reversible, especially
phase changes.

Occur when substances are mixed, but
don't chemically react.

5. Physical Change
Melting
of
ice cream
Slicing
of
bread
Painting
of
walls

6. Chemical Change

Involves the production of a new
substance.

The product of chemical change cannot
be brought back to its original state by
ordinary means.

The new substance formed is entirely
different from the original substance.

7. Chemical Change
Mixing
of
chemicals
Cooking
Burning
of
woods

8. Digestion
of
food
Answer:
Chemical Change

9. Boiling
of
water
Answer:
Physical Change

10. Baking
of
pastries
Answer:
Chemical Change

11. Sawing
of
lumber
Answer:
Physical Change

12. Curling
of
hair
Answer:
Physical Change

13. Spoiling
of
food
Answer:
Chemical Change

14. Chopping
of
vegetables
Answer:
Physical Change

15. Tearing
of
paper
Answer:
Physical Change

16. Rusting
of
nails
Answer:
Chemical Change

17. Seat work
Directions: Copy and Answer.
Write P if it is a physical change, and C if it
is a chemical change. Write your answer on
your notebook.

18. ___1.) melting of candle
___2.) wilting of plant
___3.) burning of charcoal
___4.) condensation of water vapor
___5.) chewing of food

19. ___6.) decaying of human waste
___7.) grinding of meat
___8.) cutting of grasses
___9.) charring of sugar
___10.) freezing of water

20. ___11.) electroplating of metal
___12.) combustion of fuel
___13.) toasting of bread
___14.) crumpling of paper
___15.) mixing of red and green marbles

21. Assignment
Directions:
Cut-out different pictures in old magazines
or newspaper 5 examples each of
Physical and Chemical Change. Identify
and write a brief description of the picture.
Paste it in a short bond paper.

(To be passed on July 22, FRIDAY)

22. Prepared by:
Sheila Mae Rosali d.N. Lavapie