NAME:…………………………………………………………………………………………………………………………………………
UNIT 13.
MATTER
1.-Introduction. Brainstorm
1) Look at these geometric figures and think about their qualities
such as colour or shape.
2) Can you measure these
characteristics? Why?
 Yes, I think that you could…..
 No, I think that you could
not…..
3) Look at these images and think about some properties such as mass or
volume in solids, liquids and gases.
Gases
Solids
Liquids
4) Could you measure these characteristics?
 Yes, I think that I could…..
 No, I think that I could not…..
KEY WORDS
Measure: To find the size, weight of something by using an instrument
Shape: The form of something
Mass: Amount of matter that an object contains. It is measured in grams
and kilograms.
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Volume: Amount of space that something occupies. It is measured in litres
2.-What is matter?
Everything that surrounds us is made up of matter. The air, the
water, the rocks, animals, plants, everything.
We can define matter as all that has mass (can be weighed) and
occupies a space (volume).
Activity 1.
Two students are arguing in class because one of them thinks that
the air is not matter.
Do you agree? Why?
 I agree with him, because…
 I don´t agree with him, because………..
How could you show that the air is matter?
You have an inflated balloon, an un-inflated balloon and a pair of
scales.
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Activity 2.
Are the following elements matter? Explain your answers.
Wine……………………………………………………………………………………………………………….……
Sound………………………………………………………………………………………………………….……….
Vapour…………………………………………………………………………………………………………………
Wood…………………………………………………………………………………………………………………..
Light…………………………………………………………………………………………………………………….
Sand…………………………………………………………………………………………………………………….
Taste……………………………………………………………………………………………………………………
3.-Mass and volume
Mass measures the amount of matter that a body possesses. The
unit of mass in the International System of Unit (SI) is the Kilogram (kg).
We use submultiples of the kg: gram (g), decigram (dg), centigram (cg)
ands miligram (mg). Mass is measured with a scale.
Volume is the space that a body occupies. The SI unit is the cubic
metre (m3). We also use the cubic decimetre (dm3) and the cubic
centimetre (cm3). The volume of solid bodies, liquids and gases can be
measured with a measuring cylinder.
The capacity of a vessel is the maximum volume that it can contain.
The unit of capacity in the SI is the litre (l). Submultiples are decilitre (dl),
centilitre (cl) and mililitre (ml).
Measuring cylinder
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Electronic scale
3
Activity 3.
A measuring cylinder contains 30 ml of water. A metal ball is placed
in the cylinder and the level of the water goes up to 40 ml.
What is the volume of the ball?
4.- Density
The density of a substance is the relationship between its mass and the
volume it occupies.
Density = Mass / Volume
Activity 4.Discuss with your partner and write down the answers to the following
questions:
a) Which weighs more, a Kg of white cork or a Kg of iron? Why ?
b) What has more volume, the Kg of cork or the Kg of iron?
c) What has more density cork or iron?
Activity 5.If you mix water and oil in the same recipient , oil float on the water .
Why?
Activity 6.Watch and listen to the video about
https://www.youtube.com/watch?v=SimFy9wOMXY
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4.-Classification of matter
Matter can be classified into mixtures and pure substances.
On the one hand, mixtures can be classified into heterogeneous and
homogeneous mixtures.
On the other hand, pure substances can be classified into elements
and compounds.
MIXTURES are combinations of two or more substances which have
different specific properties. Their chemical composition is variable.
Homogeneous mixtures are mixtures which you cannot see the
different components. Examples: a fruit juice, the air , water and salt.
Heterogeneous mixtures are mixtures in which you can see the
different components. Examples: a fruit salad, granite, water and oil.
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Activity 7.
Look at the components in these mixtures. Classified them into
heterogeneous mixture and homogeneous mixture
a) sand+water
e) sugar+salt
b) sugar+water
c) alcohol+water
f) a vegetable salad g) sugar+milk
d) iron +salt
h) oil + water
HETEROGENEOUS MIXTURE
Sand and water
HOMOGENEOUS MIXTURE
sugar+water
iron +salt
alcohol+water
sugar+salt
sugar+milk
a vegetable salad
Cola cao, blood, atmosphere
oil + water
Nature in the classroom
- You are going to work in pairs and each person must speak about 3
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minutes.
- You will prepare and present a visual and oral presentation in the
class.
- Your presentation should be about:
“ The methods of separation of the components of mixtures”
- Your presentation must include:
- A diagram with the procedures used to separate mixtures.
- The definitions of each method of separation with an
example.
SELFASSESSMENT CHART
UNIT 13. MATTER
Circle one of these options: YES, NO AND NOT YET
I CAN..... Recognize scientific words
YES
NO
Take notes from a listening or a video
YES
NO
NO YET
Find valuable information from different
sources
YES
NO
NO YET
Describe images and pictures
YES
NO
NO YET
Translate the main ideas of a text
YES
NO
NO YET
YES
NO
NO YET
YES
NO
NO YET
YES
NO
NO YET
YES
NO
NO YET
scientific concepts with a partner
I KNOW... What matter is and the properties that
are
proper of the matter.
NO YET
What mass and volume are.
What density is
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To differentiate between mixtures and
YES
pure substances.
NO
NO YET
To differentiate between homogeneous
matter and heterogeneous matter .
YES
NO
NO YET
Different technique to separate
mixtures to
obtain pure substances.
YES
NO
NO YET
Suggestions to improve my learning process ..................................................
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