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SMK Convent Sitiawan PBS 2012

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CHAPTER 1: Introduction to Science

1.1 Understanding that science is part of everyday life.1. Try to observe your surroundings. List down what you have seen that related

to science.

a) _______________________________________________________b) _______________________________________________________c) _______________________________________________________

2. What is science?Science is the systematic study of _______________________________

3. Some examples of natural phenomena that we can see around us area) growth of human from a baby to an ___________________________.b) fall of a stone to the ________________________.c) melting of ________________.

4. Science plays important roles in our daily life. Explain three importance ofscience in everyday life.

a) ____________________________________________________________________________________________________________

b) ____________________________________________________________________________________________________________

c) ____________________________________________________________________________________________________________

5. Match the fields of sciences below with the acquired knowledge. Give anexample which is related to the knowledge mentioned.

Field of science Knowledge Career

Physics The study of plants

Chemistry The study of animalsBiology The study of the properties

of matter and energy

Meteorology The study of weather and

climate

Geology The study of the reactions

of chemical substances

Zoology The study of stars and

planets in the universe

Botany The study of living things

Astronomy The study of rocks and

minerals

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1.2 Understanding the steps in scientific investigation.1. Arrange the following steps in a scientific investigation in the correct order.

A Writing a report

B Making a conclusionC Identifying the problem

D Analysing and interpreting data

E Collecting data

F Carrying out the experiment

G Forming a hypothesis

H Planning an experiment

Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8

2. A scientific investigation is a series of steps done to study a problem.Complete the following table.

Step Explanation

Identifying the ________________.

Determine what we are going to

study.

Suggesting a ________________.Make a smart guess.

Analysing and _______________ data.Explaining the data.

Forming a _________________.State whether the hypothesis is

true or not.

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1.3 Knowing physical quantities and their units.1. State the five basic physical quantities in the table below. Complete the

table with correct SI unit and its symbols.

Physical quantity SI Unit Symbol of SI unit

2. Complete the following table.Prefix Symbol Value

(a) giga

(b) mega

(c) kilo

(d) deci

(e) centi

(f) milli

(g) micro

(h) nano

3. Convert each of the following quantities in the unit given.(a)3.47 kg = __________________________g(b)8 500 cm = __________________________m(c)9 800 000 s = __________________________s(d)340 g = __________________________kg(e)450 m = __________________________km(f)34 500 000 m= __________________________Mm(g)3 600 cm = __________________________km(h)4 500 mg = __________________________kg

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1.4 Understanding the use of measuring tools.1. Name the following apparatus.

2. Name the suitable measuring tools to measure the following physicalquantities.

Physical quantity Suitable measuring tool

Length of a curve (a)External diameter of a beaker (b)

Internal diameter of a gas jar (c)

Volume of liquids (d)

Fixed volume of 20 cm, 25 cm or

50 cm of liquids

(e)

Mass of a calculator (f)

Weight of 10 eggs (g)

Temperature of liquid (h)

Body temperature (i)

3. Diagram below show two laboratory apparatus, X and Y.

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1.5 Understanding the concept of mass.1. The weightof an object is the __________________________________

on an object.

2. The weight of an object is measured using a ______________ balance or a__________________ balance.

3. The massof an object is the ___________________________________contained in the object.

4. The mass of an object is measured using a _____________ balance, a_______________ balance or an __________________ balance.

5. Weight and mass are two different quantities. Complete the table below toshow their differences.

Weight Difference Mass

Definition

SI unit

Measuring

tools

Affected by

gravitational

pull or not

Constant/can

change from

place to

place

1.6 Realising the importance of standard units in everyday life.1. Tick the statements which show the advantages of using standard units.

(a)Measurement can be understood everywhere.(b)It makes international trading easier.(c)Measurements can be made using the same instruments.(d)All things are sold at the same price.

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CHAPTER 2: Cell as a Unit of Life

2.1 Understanding cells.1. Complete the sentence below with suitable answer.

a) The basic unit of living things is _______________.b) We have to use a ____________________ to see cells.c) _______________ are so tiny that they can only be seen under a

microscope.

2. Label the main parts of the microscope correctly.

3. Complete the flow chart below to show the correct ways to use a compoundlight microscope.

P - Look through the eyepiece and adjust the mirror to obtain a brightfield of view.

Q - Place the microscope on a flat surface in a well-lit area.

R - If necessary, change to a high power objective lens.

S - Position the low power objective lens above the hole of the stage.

T - Adjust the fine focus knob until a sharp image is obtained.

U - Raise the condenser as high as it can go and open the diaphragmfully.

V - Place a prepared slide on the stage and hold it in place with theclip.

W - Look through the eyepiece and observe the specimen. Turn thecoarse focus knob counter-clockwise until the object is in focus.

X - Lower the objective lens using the course focus knob until it is justabove the slide.

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Q (a) (b)

(d) (c) U

W (e) R

4. Draw and label the structures of plant cell and animal cell in the space below.Animal cell Plant cell

5. State the function of each cell structure below.Cell structure Function

NucleusCytoplasm

Cell membrane

Vacuole

Chloroplast

Cell wall

6. State the similarities and differences between an animal cell and a plant cell.a) Similarities:

______________________________________________________

______________________________________________________

b) Differences:(a)____________________________________________________

____________________________________________________

(b)________________________________________________________________________________________________________

(c)________________________________________________________________________________________________________

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2.2 Understanding unicellular organism and multicellular organism.1. What is it mean by unicellularorganism?

_________________________________________________________

2. What is it mean by multicellularorganism?_________________________________________________________

3. Give examples of unicellular organism and multicellular organism in the spaceprovided.

Unicellular organism Multicellular organism

___________________ ____________________

___________________ ____________________

___________________ ____________________

4. Classify the following organisms into unicellular organisms and multicellularorganisms.

Unicellular organisms Multicellular organisms

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2.3 Understanding that cells form tissues, organs and systems in the human body.1. Namethe different types of human cell below.

(a) (e)

(b) (f)

(c) (g)

(d) (h)

2. State the functionof different types of human cells you name above in thespace provided below.

(a)______________________________________________________(b)______________________________________________________(c)______________________________________________________(d)______________________________________________________(e)______________________________________________________(f)______________________________________________________(g)______________________________________________________(h)______________________________________________________

3. Diagram shows the levels of cell organisation. Complete the ladder ofhierarchy.

Organism

Cell

4. What is tissue?_________________________________________________________

5. What is organ?_________________________________________________________

6. What is system?_________________________________________________________

(a)

(b)(c)

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2.4 Realising that humans are complex organisms.1. Human are complex organisms made up of various systems. State fourof the

systems.

(a)______________________________________________________(b)______________________________________________________(c)______________________________________________________(d)______________________________________________________

2. Fill in the blanks with the following words.functions specific life processes

cells thinking

(a)Human have millions of (i) __________________ which are specialisedto perform (ii) ___________________ functions.

(b)Specialisation of cells in the body enables body cells to perform various________________.

(c)Cells are organised to form tissues, organs and systems which have itsown ________________.

(d)Human beings have brains and are capable of ______________.3. Why human beings are complex organisms? Explain.

_________________________________________________________

_________________________________________________________

_________________________________________________________

_________________________________________________________

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CHAPTER 3: Matter

3.1 Understanding that matter has mass and occupies space.3.2 Understanding the three states of matter.3.3 Understanding the concept of density.3.4 Appreciating the use of properties of matter in everyday life.

CHAPTER 4: The Variety of Resources on Earth

4.1 Knowing the different resources on earth.4.2 Understanding elements, compounds and mixtures.4.3 Appreciating the importance of the variety of earths resources to man.

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