Ωƒ∏Y – ™°SÉàdG ∞°üdG

2

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.(NaCl) ΩƒjOƒ°üdG ójQƒ∏c Ö qcôe (Cl) Qƒ∏μdGh (Na) ΩƒjOƒ°üdG π qμ°ûj 1

?CÉ°ûf …òdG §HGÎdG ´ƒf Ée

᫪gÉ°ùJ á£HGQ

á«fƒjEG á£HGQ

á«fó©e á£HGQ

á«fhÎμdEG á£HGQ

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.Üöû∏d áØ«¶f

?AÉ°†ØdG ‘ Ió«Øe É«LƒdƒæμàdG √òg ¿ƒμJ ób GPÉŸ

.á«FÉ°†ØdG äɪ¡ŸG ‘ É¡eGóîà°SG πÑb √É«ŸG í«°TôJ Öéj

.¢VQC’G ≈∏Y »àdG √É«ŸG ç qƒ∏J øe ÈcCG áYöùH AÉ°†ØdG ¤EG òNDƒJ »àdG √É«ŸG ç qƒ∏àJ

AÉ°†ØdG ‘ áØ«¶ædG √É«ŸG OÉéjEG ¿C’ á«FÉ°†ØdG äɪ¡ŸG ‘ √É«ŸG ΩGóîà°SG IOÉYEG Öéj

.áÑ©°U ᪡e

πÑb øe É¡cÓ¡à°SG πÑb äÉÑfòŸG øe IPƒNCÉŸG √É«ŸG í«°TôJ Öéj

.AÉ°†ØdG OGhQ

.º«≤à°ùe QÉ°ùe ≈∏Y áYöùH É¡JOÉ«≤H ¥ÉÑ°S IQÉ«°S QÉÑàNG …ôéj 3

?IQÉ«°ùdG ´QÉ°ùJ øe ójõ«°S Ò«¨J …CG

∑ôëŸG Iƒb ÊóJ

IQÉ«°ùdG á∏àc ÊóJ

QÉ°ùŸG áaÉ°ùe IOÉjR

OƒbƒdG ¿GõN ºéM IOÉjR

6092-02

Grade 9 Science

3

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1 Sodium (Na) and Chlorine (Cl) form a compound Sodium Chloride (NaCl).

What is the type of bond formed?

Covalent

Ionic

Metallic

Electronic

2 Space scientists developed a water filtration system that provides safe, clean drinking

water all over the world.

Why would this technology be useful in space?

Water must be filtered before being used for space missions.

Water taken into space is more easily polluted than water on Earth.

Water on space missions must be reused because getting clean water in space is

difficult.

Water taken from comets needs to be filtered before being consumed by

astronauts.

3 A racing car is tested by accelerating it along a long straight track.

What change would increase the acceleration of the car?

Decrease the force of the engine

Decrease the mass of the car

Increase the length of the track

Increase the size of the fuel tank

6092-03

Ωƒ∏Y – ™°SÉàdG ∞°üdG

4

Aõ÷G

Gòg ‘

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≈∏Y AÉæH ¿ƒμdG ïjQÉJ ájGóH ‘ âq“ »àdG çGóMC’G ¢†©H ‹ÉàdG ∫hó÷G qÚÑj 4

.᫪∏Y ájô¶f

1234

QÉéØfGäÉfƒJhÈdG π tμ°ûJ äÉjQòdG π tμ°ûJöUÉæ©dGhΩƒéædG π tμ°ûJ ájGóH

¿ƒμdG Óμ°û«d πMGôŸG √òg ó©H ÉKóM øjôNBG ÚKóM uº°S .Ωƒ«dG

5

?áKhQƒŸG áØ q°üdG ∫ƒM Gòg Ö n°ùqædG qπé°S øe èpàæà°ùf ¿CG Éææ pμ oÁ GPÉe

.AGƒ°S qóM ≈∏Y çÉfE’Gh QƒcòdG ≈∏Y áKhQƒŸG áØ q°üdG √òg ÒKCÉJ ô n¡¶j

.∫É°ùfCG 4 øe §≤a 1 ≈∏Y áKhQƒŸG áØ q°üdG kIOÉY ô n¡¶J

.¢ùæ÷ÉH ᣠpÑJôeh IóFÉ°S áKhQƒŸG áØ q°üdG √òg ¿ƒμJ ¿CG Ö péj

.á« uëæàe áKhQƒŸG áØ q°üdG ¿ƒμJ ¿CG Ö péj

6092-04

Grade 9 Science

5

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4 The diagram shows some of the events occurring in the early history of the universe,

according to one scientific theory.

1 2 3 4

Explosion Protons formAtoms and elements

formStars begin to form

List two more events that must have happened after these steps to create the universe

today.

5

What can we conclude from this pedigree about the inherited trait?

Male and female offspring are affected equally by this trait.

Usually only 1 out of every 4 offspring display an inherited trait.

This inherited trait must be dominant and sex-linked.

The inherited trait must be recessive.

Key

= male with inherited trait

= female without inherited trait

6092-05

Ωƒ∏Y – ™°SÉàdG ∞°üdG

6

Aõ÷G

Gòg ‘

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6

∞°üdGΩƒjOƒ°üdGQƒ∏ØdGΩƒ«æpŸC’GΩƒ«°ù«æ¨ŸG

1Na+Fl–Al2+Mn3–

2S2+Fl7+Al4–Mg2–

3Na+F–Al3+Mg2+

4S2–Fl7–Al3–Mn3+

?IQƒcòŸG öUÉæ©∏d äÉfƒjC’G øë°Th í«ë°üdG õeôdG qÚÑj ∞°U q…CG

1 ∞°üdG

2 ∞°üdG

3 ∞°üdG

4 ∞°üdG

.¢VQC’G ≈∏Y IÉ«◊G ó«b ≈∏Y AÉ≤Ñ∏d á«◊G äÉæFÉμdG É¡LÉà– »àdG IQGô◊Gh Aƒ°†dG ábÉW ¢ùª°ûdG è pàæJ 7

.¢ùª°ûdG ‘ á`qjhƒf äÓYÉØJ øY ábÉ£dG √òg èoàæJh

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I qô›

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᪂

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?5cm/s/s √Qób ÉkYQÉ°ùJ 2ckg ¬à∏àc

2N

5N

2.5N

10N

6092-06

Grade 9 Science

7

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6

Row Sodium Fluorine Aluminium Magnesium

1 Na+ Fl– Al2+ Mn3–

2 S2+ Fl7+ Al4– Mg2–

3 Na+ F– Al3+ Mg2+

4 S2– Fl7– Al3– Mn3+

Which row shows the correct symbol and charge for ions of the elements listed?

Row 1

Row 2

Row 3

Row 4

7 The Sun produces the light and heat energy that living things need to survive on Earth.

This energy is produced in nuclear reactions inside the Sun.

What is the Sun?

A galaxy

A planet

A star

A supernova

8 According to Newton's Laws of Motion, which net force will accelerate

a 2 kg object at 5 m/s/s?

2N

5N

2.5N

10N

6092-07

Ωƒ∏Y – ™°SÉàdG ∞°üdG

8

Aõ÷G

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.•ƒ¨°†ŸG AGƒ¡dG ñhQÉ°U ôeÉY ≥∏WCG 9

.É¡àqÑã«d IóYÉb ≈∏Y áLÉLõdG ™°Vh ºK ∂«à°SÓÑdG øe IÒÑc áLÉLR ‘ AÉŸG ™°Vh

.Ωób áîØæe ΩGóîà°SÉH áLÉLõdG ‘ AGƒ¡dG qï°V ºK

.AGƒ¡dG ‘ áLÉLõdG â≤∏£fG ,IóYÉ≤dG øe áLÉLõdG â∏aCG ÉeóæY

.ácôë∏d ådÉãdG øJƒ«f ¿ƒfÉb ñhQÉ°üdG ¥Ó£fG øgÈj ∞«c qöùa

6092-08

Grade 9 Science

9

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9 Amer launches an air bottle rocket.

He puts water in a large plastic bottle then puts it on a base to hold it.

He then pumps air into the bottle using a foot pump.

When he releases the bottle rocket from the base it launches into the air.

Describe how the rocket launch demonstrates Newton’s third Law of Motion.

Plastic bottle

Water

Base

Foot pump

6092-09

Ωƒ∏Y – ™°SÉàdG ∞°üdG

10

Aõ÷G

Gòg ‘

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.…hƒf ¢†ªM A…õL ‹ÉàdG §£îŸG πãÁ 10

?…hƒædG ¢†ª◊G Ö«côJ í°VhCG á≤jô£H qÚÑj ¿CG §£îŸG Gò¡d øμÁ ∞«c

.êhOõe ¿hõ∏M πμ°T ≈∏Y A…õ÷G q∞d

.Ú£N ¤EG A…õ÷G π°üa

.ô¨°UCG AGõLCG ¤EG A…õ÷G ™«£≤J

.¢ùcÉ©ŸG √ÉŒ’G ‘ A…õ÷G ôjhóJ

.áªéæd á∏ªàμe ÒZ IÉ«M IQhO §£îŸG qÚÑj 11

?§£îŸG πªμj º°ùL q…CG

P

P

P

P

P

P

P

P

P

P

P

P

T

T

T

C

C

A

T

A

A

A

G

G

?

6092-10

Grade 9 Science

11

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10 This diagram represents a molecule of DNA.

How can this diagram more accurately show the structure of DNA?

Twist the molecule into a double helix

Separate the molecule into two strands

Shorten the molecule into smaller pieces

Turn the molecule in the opposite direction

11 The diagram shows an incomplete star life cycle.

Which object completes the diagram?

P

P

P

P

P

P

P

P

P

P

P

P

T

T

T

C

C

A

T

A

A

A

G

G

Stellar NebulaRed Supergiant

Supernova

?Neutron

Star

Black hole

Average star Massive star Planetary nebula Red giant

6092-11

Ωƒ∏Y – ™°SÉàdG ∞°üdG

12

Aõ÷G

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.‹ÉàdG QÉÑàN’G óYCÉa π©ØdG OQh π©ØdG á«FÉæK Èàîj ò«ª∏J ¿Éc 12

?QÉÑàN’G Gòg ‘ π©ØdG qOQh π©ØdG áq«FÉæK ƒg Ée

¿ƒdÉÑdGh AGƒ¡dG

Ohó°ûŸG §«ÿGh AGƒ¡dG

Ò°ü©dG á q°UÉeh Ohó°ûŸG §«ÿG

Ohó°ûŸG §«ÿGh ¿ƒdÉÑdG

»nàj sQPh Ωƒ«°ùdÉc I qQP §£îŸG qÚÑj 13

π qμ°ûàd kÉq«FÉ«ª«c á£ÑJôe Qƒ∏c

.Ωƒ«°ù∏μdG ójQƒ∏c

.§HGhQ π qμ°ûàd á≤jô£dG √ò¡H Qƒ∏μdGh Ωƒ«°ùdÉμdG äG qQP πYÉØàJ GPÉŸ qöùa

Ca+2

Cl–

Cl–

6092-12

Grade 9 Science

13

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12 A student was testing action and reaction pairs, and set up the investigation shown.

What is the action/reaction pair in this scenario?

The air and the balloon

The air and the suspended string

The suspended string and the straw

The balloon and the suspended string

13 The diagram shows a calcium atom and

two chlorine atoms bonding chemically

to form calcium chloride.

Explain why calcium and chlorine atoms react this way to form bonds.

suspended stringstraw

balloonair

Ca+2

Cl–

Cl–

6092-13

Ωƒ∏Y – ™°SÉàdG ∞°üdG

14

Aõ÷G

Gòg ‘

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?»KGQh qÒ¨J ¤EG …ODƒj ób á«dÉàdG ä’ɪàM’G øe …CG 14

á«ZÉeO á«∏N ‘ qÒ¨J

á«Hóg á«∏N ‘ qÒ¨J

ájó∏L á«∏N ‘ qÒ¨J

q…ƒ`næ ne ¿Gƒ« nM áq«` p∏` nN ‘ qÒ¨J

?äÉæ«÷Gh …hƒædG ¢†ª◊Gh (äÉ« q̈ Ñ°üdG) äÉeƒ°SƒehôμdG ÚH ábÓ©dG »g Ée 15

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πFÉ°ùdG AÉŸG π qμ°ûàd ÜhòJ »àdG è∏ãdG äÉÑ©μe

∫ƒ∏fi ‘ Ö°SÎj í∏e

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?í«ë°U πμ°ûH ´QÉ°ùàdG ÉØ°üj ¿Gò∏dG ¢SÉ«≤dG IóMhh ∞jô©àdG Ée

(m/s2) ᫶ë∏dG áYöùdGh áYöùdG ¬°SÉ°SCG ≈∏Y Ò¨àJ …òdG ∫ó©ŸG

(m/s) ¬°SÉ°SCG ≈∏Y áaÉ°ùŸG Ò¨àJ …òdG ∫ó©ŸG

(m/s) ácô◊G √ÉŒG ¬°SÉ°SCG ≈∏Y Ò¨àj …òdG ∫ó©ŸG

(m2/s) áMGRE’G áMÉ°ùe ¬°SÉ°SCG ≈∏Y Ò¨àJ …òdG ∫ó©ŸG

.ÉjÓÿG ≈∏Y ´É©°TE’G ôKG Oóë«d ÈàîŸG ‘ áHôŒ ⁄ÉY qóYCG 18

Ωƒ≤j ÉeóæY áeÓ°ùdG äGAGôLEG PÉîJGh á°UÉÿG äGõ«¡éàdG ΩGóîà°SG Öéj n⁄

?áHôéàdÉH ⁄É©dG

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.…ƒb ¢†ªM …hƒædG ¢†ª◊G

.¿ÉWöùdG ÖÑ°ùj ¿CG ´É©°TEÓd øμÁ

6092-14

Grade 9 Science

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14 Which mutation would result in a change that can be inherited?

A mutation in a brain cell

A mutation in a ciliated cell

A mutation in a skin cell

A mutation in a sperm cell

15 What is the relationship of a chromosome to DNA and genes?

A chromosome is a gene and forms DNA.

A chromosome is made of DNA and is organised into many genes.

A chromosome is made out of genes and has many DNA molecules.

A chromosome is a short part of a DNA molecule and has one gene on it.

16 Which change indicates a chemical reaction?

Ice cubes melting to form liquid water

A salt precipitating out of a solution

Solid sulphur rocks being crushed to form a powder

Carbon dioxide gas dissolving in a liquid soft drink

17 In an investigation about Newton’s Laws, Bashayer changed the acceleration of a toy car.

Which definition and unit of measurement correctly describe acceleration?

The rate at which speed or velocity changes (m/s2)

The rate at which distance changes (m/s)

The rate at which direction of motion changes (m/s)

The rate at which displacement area changes (m2/s)

18 A scientist designs a laboratory experiment to determine the effect of radiation on cells.

Why should special equipment and safety procedures be used when the scientist does

this experiment?

DNA is flammable.

Radiation is explosive.

DNA is a strong acid.

Radiation can cause cancer.

6092-15

Ωƒ∏Y – ™°SÉàdG ∞°üdG

16

Aõ÷G

Gòg ‘

Öàμ

J ’

.ÚØ∏àfl ÚjöûH Újhƒf Ú£‰ √ÉfOCG §£îŸG qÚÑj 19

.ÚjhƒædG Ú£ªædG øjòg ∞∏àîj ∞«c OóM (i

.Ωƒ°Sƒehôc πc øY Úàî°ùf IOÉY …hƒf §‰ πc qÚÑj GPÉŸ ìöTG (ii

1

6

13

21 22 23 24XY

14 15 16 17 18

7 8 9 10 11 12

2 3 4 51

6

13

21 22 23 24XY

14 15 16 17 18

7 8 9 10 11 12

2 3 4 5

6092-16

Grade 9 Science

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19 The diagram below shows two different human karyotypes.

i) Identify how these karyotypes differ.

ii) Explain why karyotypes usually show two copies of each chromosome.

1

6

13

21 22 23 24XY

14 15 16 17 18

7 8 9

Karyotype 1 Karyotype 2

10 11 12

2 3 4 5 1

6

13

21 22 23 24XY

14 15 16 17 18

7 8 9 10 11 12

2 3 4 5

6092-17

6092-32

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