This document is a lesson plan on materials found at home according to their uses for third grade students. It discusses key questions about how materials are used in daily life and why safety is important. It provides objectives to observe and describe household material properties, and communicate safe handling. Examples of household items like bleach, knives, and televisions are given along with their uses and safety information. Students are asked to classify materials according to their use and discuss proper storage and labeling of chemicals. Precautionary measures for handling substances and symbols indicating hazards are reviewed.

1. Materials Found at
Home according to
their Uses
Grade 3
SY 2013-2014
Ms. Shirley Puaso-Valera

2. Key Questions
1.How do we use matter
in our daily life?
2.Why should I be careful
when dealing with
different materials?

3. Objectives
A.Observe and describe the
properties of household materials
- physical properties
- chemical properties
B. Use communications to inform
others about the safe handling of
chemicals.

4. Review of the past
lesson
Changes in Matter

5. Name some
objects found at
home and
describe it and
tell the use of it.

6. Show and Tell
Naming some of the different household
chemical and materials
Bleach - is a strong and
effective disinfectant,
effective in killing
bacteria, fungus and
viruses.

7. Show and Tell
Naming some of the different household
chemical and materials
Caution should be exercised
in the use of it. Improper use
of bleach may reduce its
effectiveness in disinfection
and also lead to accidents
which can be harmful to
health.

8. Show and Tell
Naming some of the different household
chemical and materials
Overuse of bleach or using a
bleach solution that is too
concentrated results in the
production of toxic substances
that pollute the environment
and disturb ecological

9. Show and Tell
Naming some of the different household
chemical and materials
Knife - is a
cutting tool

10. Show and Tell
Naming some of the different household
chemical and materials
fork - A utensil
with two or
more prongs,
used for eating or
serving food.

11. Show and Tell
Naming some of the different household
chemical and materials
LPG (Liquefied petroleum
gas) or simply propane or
butane, is a flammable
mixture of hydrocarbon
gases used as a fuel in
heating appliances and
vehicles

12. Show and Tell
Naming some of the different household
chemical and materials
Soap and
detergent are
useful for
cleaning

13. Show and Tell
Naming some of the different household
chemical and materials
Television has a
number of uses. First
of all, it makes it
possible for us to see
what is happening far
away..

14. Show and Tell
Naming some of the different household
chemical and materials
Television is a
very fine medium
of
entertainment.

15. Show and Tell
Naming some of the different household
chemical and materials
We should avoid the
presentation of
programmes that may
spoil the taste ,
character and morale
of people.

16. Collaborative Activity
Activty 5.2
Materials Found at Home
Problem: Are all the materials found at home
useful?
Materials Needed: pictures of different materials
found at home: microwave, electric toaster, kettle,
cups, plates, spoons rake, shovel, grass cutter,
electric mower, muriatic acid, insect spray

17. Collaborative Activity
Activty 5.2
Materials Found at Home
What to do: Classify the materials according to use.
Observation:Write the names of the materials in
their proper column.
Objects
For cooking
For cleaning
For eating
For gardening

18. Collaborative Activity
Activty 5.2
Materials Found at Home
1.Are al the materials useful? ________________
2.Which materials can be harmful?____________
3.Are these materials properly kept in your house?
_________________________________
4.Are they properly labeled in the cabinet?______
_______________________________________

19. Collaborative Activity
Activty 5.2
Materials Found at Home
Conclusion:
All materials in the activity are ____________
They can become harmful if ______________
_____________________________________
_____________________________________

20. Activty 5.2 Materials Found at Home
Problem: Are all the materials found at home useful?
Materials Needed: pictures of different materials found at home: microwave, electric
toaster, kettle, cups, plates, spoons rake, shovel, grass cutter, electric mower,
muriatic acid, insect spray
What to do: Classify the materials according to use.
Observation:Write the names of the materials in their proper column.
Objects
For Cooking
For Cleaning
For Eating
For Gardening
1. Are al the materials useful? _________________________________________________
2. Which materials can be harmful?_____________________________________________
3. Are these materials properly kept in your house?_________________________________
4. Are they properly labeled in the cabinet?_______________________________________
Conclusion:
All materials in the activity are _________________________________________________
They can become harmful if ___________________________________________________
__________________________________________________________________________

21. Sharing of the answers by
presenting the data

22. Discussion on the
importance of reading the
label of the different
chemicals or materials
found at home.

23. Effects of Some Materials on People
1. Foods like vegetables, fruits ,
fish, meat and juice, give our
body the nutrients it needs.
Foods packed or canned like
corned beef, sardines, fruit
cocktails, and others should
be check the ingredients or
substances contained in the
different materials and the
expiry date of the products
in the labels. You might be
buying food without
nutritional value.

24. 2.
Effects of Some Materials on People
Preservatives and
additives are
usually added to
processed food.Ex:
food coloring,flavor
enhancers,monosod
ium
glutamateMSG,
and sodium nitrate.
Eating too much
chips and instant
noodles can harm

25. Effects of Some Materials on People
3. Vitamins make our body more
resistant to sickness. Medicines like
paracetamol are taken to relieve
pain or treat diseases like headache
and fever.
Use these as prescribed by doctors.

26. Effects of Some Materials on People
4. Liquid detergents are used in
washing clothes. Muriatic acid
and other disinfectants are used
for cleaning the toilet and the
bathroom.
If not properly used they can
cause respiratory diseases
especially when it is inhaled.
These must be used as indicated
in the products labels.

27. Effects of Some Materials on People
5. Insecticides are used to
kill insects like
mosquitoes, flies, and
cockroaches.
If it is not used properly
it can make us sick.
Products labels should
be read before using
them.

28. Harmful Substances
Alcohol, cigarettes and certain
types of drugs are harmful to
people.
It can damage the lungs, body
organs and change the way a
person thinks and acts.
Person should always say
“NO” to harmful drugs to keep
the body fit and healthy.

29. Role Playing
Read the precautionary measures in
handling harmful substance on page
224-226.
Role play one of the precautionary
measures.
Group presentation

30. Discussion on the different
precautionary measures in handling
materials

31. Precautionary Measures in Handling Substances.
1.Always read the labels of products before buying them.

32. Precautionary Measures in Handling Substances.
2.Do not buy products without the expiry date.

33. Precautionary Measures in Handling Substances.
3.Insecticides, muriatic acids, and disinfectants should be
kept in places where children cannot reach them . Wear
gloves and cover your nose and mouth with mask. Change
your clothes and wash hands thoroughly after using
chemicals.

34. Precautionary Measures in Handling Substances.
4. Keep flammable items, like gasoline and kerosene away
from the stove, fireplace and other sources of heat. They
can catch fire easily.

35. Precautionary Measures in Handling Substances.
5. Take only the recommended dose of medicines as
prescribed by your doctor . Too much intake of medicines,
or overdosage, is not good to the body.

36. Precautionary Measures in Handling Substances.
6. Provide designated areas for different household items.
Label all household items properly. Keep dangerous
chemicals in locked containers.

37. Precautionary Measures in Handling Substances.
7. Dispose of used materials and dangerous substances
properly.

38. Precautionary Symbols or signs
## capable of catching fire in the presence
of spark or open flame under normal
condition
…. Includes caustic and acid materials
that can damage the skin and even metals
//Poisonous and infectious materials
that can cause death or immediate
injury when a person is exposed to a
small amount

39. Generalization
Due to modern technology , certain
chemicals have been discovered and
contained in the materials and substances
around us.
Many materials and substances are useful
at home , in school , and in industries, but
they can be harmful if not used properly.
Matter plays an important role which is
essential to our everyday life.

40. Valuing
Importance of reading
product labels
proper handling of
materials.

41. Evaluation
A. Fill in the blanks with the correct word from the list. (p.229-A)
A. Choose the best answer. (p.229-B)

42. Thank You