Science Chapter 3 F1

8/13/2019 Science Chapter 3 F1

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CHAPTER3

MATTERa) Understand that matter has mass and occupies

spaceb) Understand the three states of matter

c) Understand the concept of density

d) Appreciate the use of the properties of matter in

everyday life


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3.1 MATTERHASMASSANDOCCUPIESSPACE

Matteris anything that has mass and occupies

space.

Matter

Non - living thingsLiving things

1. ________________

__

2. ________________

__

3. ________________

__

4. ________________

__5.

1. ________________

__

2. ________________

__

3. ________________

__

4. ________________

__5.


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EXAMPLEOFNONMATTER

1) ______________________

2) ______________________

3) ______________________

4) ______________________

5) ______________________


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3.2 THETHREESTATESOFMATTER

Matter consists of tiny discrete particles.

Particles (atom) are basic unit of matter.

Matter exists in three states:

a) Solidb) Liquid

c) Gas


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2. Liquid

Moderately close together, not well packed,

not orderly arranged Can move freely


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3. Gas

Far apart, loosely packed, not orderly

arranged Can move freely in any direction


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The random movementof particles of

matter is known as the Brownian

movement.


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PROPERTIESSTATEOFMATTER

Properties Solid Liquid Gas

Shape Fix shape Follow

container

shape

Follow

container

shape

Mass Fix mass Fix mass Fix mass

Volume Fix volume Fix volume Doesnthas fix

volumeCompressibility Cannot be

compress

Difficult to

compress

Can be

compress


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EXERCISE3.1

Mark () in the box wherever appicable.

30/4/13Selasa

Has mass Occupies space

(a)Sunlight

(b) Smoke

(c) Wood

(d) Light energy

(e) Sea water


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Fill in the blanks using the words given below.

Matter is anything that has mass and occupies

________________. Soil, air and water are

_________________ because they have________________ under the influence of gravitational pull

and they also have __________________ which can be

measured. The __________________ of matter can be

measured using a lever balance whereas the volume of

matter can be measured using appropriate apparatus.

volume weight mass space matter


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Classify the following into two groups based on their common characteristics.

Have_______________

Occupy_____________

Have no____________

Do not occupy _______

___________________

__________________

_

__________________

_

__________________

_

__________________

_

__________________

_

Common

characteristic

Examples

Steam Clouds Lightning Soil Air

Cells Metals Rubber Light Sound

Electricity Bones Vacuum Hearts Fire

___________________

___________________

___________________

___________________


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Complete the following diagram with the words given below to

show the states of matter.

Sugar Mercury Table Carbon dioxide

Air Liquid Petrol Gas

Matter

Solid

(a)

___________(b) __________

Examples

Ice

(c)

_____________

(d)

_____________

Examples

Water

(e) ____________

(f) ____________

Examples

Steam

(g) ____________

(h) ____________


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Draw a line to indicate the state of matter of each object.

Solid

Liquid

Gas

Umbrella

Oil

Book

Paint

Cooking gas


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Tick () where is appropriate to show some of thecharacteristics of the different states of matter.

Characteristic State of matter

Solid Liquid Gas

(a) Can be weighed

(b) Occupies space

(c) Has a fixed shape

(d) Has a fixed volume


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The following table shows the properties of particles in the different states ofmatter.

Indicate the properties of each item in the following table by following table bywriting down the letter for each property given in the above table.

Movement of particles Space between particles Arrangement of particles

a) Cannot move freely

b) Move freely and fast

c) Move freely but slowly

d) Very small

e) Small

f) Very big

g) Packed quite closely

h) Packed very close

together

i) Not arranged at all

Matter (i) Particles in

solid

(ii) Particles in

liquid

(iii) Particles in

gas

Properties


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3.3 THECONCEPTOFDENSITY


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Why metal spoon, rubber

eraser and glass marble

sinkwhile plastic cup, styrofoam

cup and wooden block

float?


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This is because they have different densities.

Density (g/cm) =Mass (g)

Volume (cm)


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Take a look at the two boxes below. Each box has the same

volume. If each bal l has the same mass, which box

would weigh more? Why?

The box that has more balls has more massper unit ofvolume. This property of matter is called density. The

density of a material helps to distinguish it from other

materials.


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PROBLEMSRELATEDTODENSITY(TEXTBOOKPG13)

Example 1:

The mass of 5 cm of copper is 44.5 g. What is its density?

Example 2: The density of water is 1.0 g/cm . What is the mass of 150

cm of water?

Example 3:

A 12cm wooden block has a mass of 9.6 g. Find outwhether it floats or sinks in cooking oil.

( The density of cooking oil = 0.7 g/cm )

Density (g/cm) =Mass (g)

Volume (cm)


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Example 4:

The mass of 5 cm of iron is 39.5 g. What is its density?

Example 5:

The density of glass is 2.6 g/cm. What is the mass of 15

cm of glass?

Example 6:

An 8 cm ice cube has a mass of 7.2 g. Predict whether itfloats or sinks in cooking oil (0.7 g/cm).

Example 7:

8 cm of silver has a mass of 84 g. 5 cm of gold has a

mass 96.5 g. Which substance is denser?


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The Importance of Density

1. Density of an object( solid or liquid) can be decided whether

the object float or sink.

2. A less dense object floats in denser liquid while a denserobject sink in a less dense liquid.

3. Density of water is1 g/cm3 .

Cork ( 0.25 g/cm3)

Wood( 0.8 g/cm3)

Mercury ( 13.6 g/cm3)

Water ( 1.0 g/cm3)

Petrol ( 0.75 g/cm3)

Lead ( 11.4 g/cm3)


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2. If a stone is immersed in a container of

water, the water level .

4. If the density of a substance is the same asthe density of the liquid in which it is

immersed, the substance will be

in the liquid.

8. Density is mass divided by .

10. Unit of density is grams per .

1. Measure of how close and how heavy are the

particles of matter in an object.

3. Substances that are more dense than water will

.

5. Liquid with a density less than water.6. Density of water is gram per millilitre.

7. Unit of density is kilograms per metre.

9. Substance whose density is less than that of water

will .

11. Very dense metal used in fishing sinkers.

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Science Chapter 3 F1