The document discusses the properties and types of matter. It defines matter as anything that takes up space. All matter has two general properties - mass and volume. Mass can be measured with a scale or balance using kilograms as the unit, while volume is the space an object occupies and is measured using liters. Matter can be classified as pure substances made of only one component or mixtures made of two or more substances that can be either homogeneous, where the components cannot be distinguished, or heterogeneous, where the components can be distinguished. Common examples of each are provided.

1. 4th Primary
Natural Science
MATTER

2. MATTER
What is matter?
Everything that has a place in space.

3. GENERAL PROPERTIES
 All the things that are matter have
these 2 properties:
- Mass
- Volume

4. MASS
 DEFINITION: It’s the quantity of matter
 INSTRUMENT: Scale or balance
 UNIT OF MEASURAMENT: KILOGRAMMES

5. VOLUME
 DEFINITION: The volume is the space that a
body occupies
 INSTRUMENT: graduated container
 UNIT OF MEASURAMENT: LITRES

6. SPECIFIC PROPERTIES:
 FLEXIBILITY: It can be deformed and then it
can recover the same shape. It is easy to fold.
Example: clothes
 FRAGILITY: It is easy to break. Example: glass
 RESISTANCE: It is difficult to break. Example:
wood, iron
 RIGID: It is difficult to fold. Example: plastic
 CONDUCTING: It can transport heat.
Example: metal
 NON-CONDUCTING: It doesn’t transport heat.
Example: wood

7. EXAMPLES
RIGID
FLEXIBILITY
FRAGILITY
RESISTANCE
NON CONDUCTING CONDUCTING

8. PURE SUBSTANCE
 A pure substance is formed only by one
substance.
Example: water, salt

9. MIXTURES
 A mixture is something formed by two or more
substances
 There are 2 kinds of mixtures:
 HOMOGENEOUS MIXTURES
 HETEROGENEOUS MIXTURES

10. HOMOGENEOUS MIXTURE
 In this kind of mixture, you can’t distinguish the
components
 Examples:
Puree Coffee Milkshake
Chocolate Cold tomato soup Orange juice

11. HETEROGENEOUS MIXTURE
 In this kind of mixture, you can distinguish all the
components
 Examples:
Salad Fruit salad
Paella
Milk and cereals Chickpeas

12. QUESTIONS
 Is air matter?
 Is a mobile phone matter?
 Is light matter?
 Is the door matter?
 Is happiness matter?
 What are the two general properties of matter?
 What property does glass have?
 What properties does wood have?
 What’s the name of a substance formed only by one
component?
 What’s the name of a subtance formed by two substances
in which you can distinguish them?
 Is milkshake a homogeneous or a heterogeneous mixture?
 Is paella a homogeneous or a heterogeneous mixture?
 Is salad a homogeneous or a heterogeneous mixture?

13. ACTIVITIES
1. Complete the sentences:
Matter is everything that has a __________ in the
space. It has _______ general properties:
_________ and volume. Mass can be measured
with a ___________ and volume with a
_______________________. The unit to
measure mass is the ______________ and to
measure the volume is the _____________
litres – two – graduated recipient – place – balance –
kilogramme - mass

14. ACTIVITIES
2. Write what property of matter these objects have.

15. ACTIVITIES
3. Classify these substances in mixtures or pure
substances.
4. Classify these mixtures in homogeneous or
heterogeneous
GOLD – SALAD – ORANGE JUICE – WATER – CHOCOLATE – SALT -
MILKSHAKE – CHOCOLATE – FRUIT SALAD - COLD TOMATO
SOUP – ORANGE JUICE – SALAD – PAELLA – PUREE - COFFEE

16. JOURNAL
 What do you remember about today’s class?
Write at least 4 sentences