Visual dictionary for

KS3 ScienceArabic | Please note: there may not always be a direct translation

for some words and phrases.

Arabic |

Context

KS3 Science | Cells

Similar specialised cellscan be grouped togetherand form tissues.

Cells use the nutrientsfrom food to help anorganism work properly.

Cells transfer energythrough respiration,which often needsoxygen. This helps tokeep the organism alive. Tissues group togetherto form organs. Thecirculatory systemtransports usefulsubstances like nutrientsand oxygen to all cells inthe body. It alsotransports wasteproducts away from thecells.

Organs grouped togetherform systems and thewhole thing is called anorganism.

Key word

Specialised cell Muscle cell

Muscle tissueTissue

HeartOrgan

Circulatorysystem

System

Circulatory systemmakes up part ofthe human body

Organism

Arabic | sheet 1

Cell

Tissue

Organ

Organ system

Organism

Context

KS3 Science | Cells

Similar specialised cellscan be grouped togetherand form tissues.

Cells use the nutrientsfrom food to help anorganism work properly.

Cells transfer energythrough respiration,which often needsoxygen. This helps tokeep the organism alive. Tissues group togetherto form organs.

The transport systemtransports usefulsubstances like nutrientsand oxygen to all cells inthe organism. It also transports wasteproducts away from thecells.

Organs grouped togetherform systems and thewhole thing is called anorganism.

Key word

Specialised cell Root hair cell

Root tissueTissue

RootOrgan

Veins in leaves andstems make up thetransport system

System

Transportsystem

makes up partof a plant

Organism

Arabic | sheet 2

Cell

Tissue

Organ

Organ system

Organism

Context

KS3 Science | Cells

Bacteria and fungi aresingle-celled organisms.Many diseases arecaused by micro-organisms. Viruses aremade from chemicalsand replicate themselveswhen they get insidecells.

Antibiotics are drugs thatcan cure some diseasescaused by bacteria. Vaccination can protectagainst some illnessescaused by viruses andbacteria.

The nucleus in a cellcontains all the genesthat control all thecharacteristics of anorganism. The cell membrane letssome materials passthough but not others.

Key word

0.005mm

Fungi0.005mm

0.0001mm

Bacteria0.0001mm

0.00001mm

Viruses0.00001mm

Typical plant cellTypical animal cell

Arabic | sheet 3

Micro organism

Fungi

Bacteria

Viruses

Antibiotics

Vaccine

Cell nucleus

Cell membrane

BacterialFungi Viruses

Cell wall

Cellmembrane

Nucleus

Cytoplasm

Vacuole

Chloroplast

Context

KS3 Science | Cells

When fertilisation occurshalf the chromosomesfrom one parent joinwith half thechromosomes from theother parent to producea new individual.

Chromosomes are madeup of genes and genesare made of DNA.

Key word

How the sex of a baby is decided

Father’s Y sperm

Baby boyMother’s X egg

Baby boyMother’s X egg

Father’sX Sperm

Baby girl

Baby girl

Arabic | sheet 4

Fertilisation

Sperm cell

Egg cell

Chromosomes

Genes

X Y

Context

KS3 Science | Cells

Some food substancesare made up of verylarge molecules. Enzymes break thesedown quickly for theorganism to use. The digestive systemuses enzymes producedby the cells to break-down food substancesinto smaller, more usefulmolecules.

Key word

How enzymes work

Arabic | sheet 5

Process ofdigestion

Enzyme

Glucosemolecules

Enzyme

Cell walls of the gut

Starch molecule

Glucose in blood

Context

KS3 Science | Energy

Photosynthesis requireschlorophyll in plant cells,light, carbon dioxide andwater in order for theplant to make food.The leaves and roots ofa plant are adapted sothat photosynthesis cantake place efficiently.

Key word

Process of photosynthesis

Arabic | sheet 6

Food transported to all of the plant

Water from the roots

Energy transferred bysunlight

Carbon dioxide from the air

Photosynthesis

Context

KS3 Science | Energy

Respiration occurs in thecells of the organism.

Key word

Arabic | sheet 7

Respiration

Glucose + oxygen carbon dioxide + water + energy(in the presence of emzymes)

Process of respiration

Carbon dioxide + water oxygen + glucose(in the presence of chlorophyll)

Photosynthesis

Process of photosynthesis

Context

KS3 Science | Energy

Energy is needed to douseful things.

Energy can betransformed or changedfrom one form toanother in a variety ofdevices.

For example: a light bulbwill change the electricalenergy into heat andlight.

Key word

Arabic | sheet 8

Energy

in food and fuels (as chemical energy)

in stretched elastic bands and springs (as elastic potential energy)

in moving objects(as kinetic energy)

in the nucleus of an atom(as nuclear energy)

Energy can be stored:

Context

KS3 Science | Energy

Energy can also bethought of as beingtransferred from oneplace to another by wayof transfer processes.For example: heat energycan be transferred from ahot cup to thesurroundings by way ofthe processes ofconduction, convectionand radiation.

Key word

Energy transfers byheating

Arabic | sheet 9

Conduction

Convection

Radiation

Radiation

Convection

Conduction

Context

KS3 Science | Energy

Energy can transferredfrom the battery to thesurroundings by theelectric current and theprocesses of heating andlight.

Key word

The energy transfer in atorch

Arabic | sheet 10

Electric current

Light

BulbCell Heating

Surroundings

Context

KS3 Science | Energy

A Sankey diagram is away of showing whathappens to the transferof energy within anysystem.This shows clearly thatthe energy you have atthe start you still have atthe end although it mayhave been transferred toa variety of differentplaces.Sources of energy suchas solar, wind and wavesare said to be renewablebecause they will bethere for us to use in thefuture.Fossil fuels such as gas,coal and oil are notrenewable and onceused are not replaced.

Key word

Sankey diagram

Arabic | sheet 11

Energy transfer

Renewable

Fossil fuel

Cell Surroundings

Surroundings Surroundings

Bulb

The energy transfer in atorch

Electric current Light

Heating

Context

KS3 Science | Forces

Forces can be spread outover a large area toreduce the pressure onthe surface.

When forces areconcentrated on a smallarea the pressure islarge.

Force arrows help toshow the forces acting ina particular situation.The length of a forcearrow can be used toindicate the size of theforce. The direction of aforce arrow is often moreimportant than theprecise point at which itacts.

Key word

Force exerted by aperson pushing the

box

Force exerted bythe floor on thebox (friction tries

to stop the box moving)

Box

Floor

Arabic | sheet 12

Force

Area

Pressure

Context

KS3 Science | Interdependence

A pyramid of numbersshows the numbers oforganisms making up afood chain.

Food chains start withthe sun. The next in line is aproducerfollowed by theconsumer.

Energy is transfereddown the chain in thedirection of the arrow

Key word

Food pyramid

Fox

Rabbits

Grass

Arabic | sheet 13

Energy transfer

Producer

Food chain

Consumer

Food chain

Sun Phytoplankton KrillBaleenwhale

Context

KS3 Science | Interdependence

A food web shows therelationship betweenorganisms that can havemore than one source offood.

Key word

Arabic | sheet 14

Food web

Baleen whale

Orca whale Sperm whale

Leopard sealPenguin

Other birds

Other seals

Elephant seal

Squid

Other herbivorouszooplankton

Carnivorouszooplankton

Fish

Krill

Phytoplankton

Context

KS3 Science | Particles

Particles can be ofdifferent sizes. This couldexplain how somechemicals can passthrough membranes andother chemicals cannot.

Key word

Arabic | sheet 15

Particle arrangement Solid Liquid Gas

Daigram

How are the particlesarranged?

Fixed pattern Random Random

How are the particlesmoving?

Vibrating onthe spot

Moving overand aroundeach other

Fast moving

How close are theparticles to each other?

Close Close Far apart

Context

KS3 Science | Particles

Molecules are made ofatoms joined together(bonded).For example one CarbonDioxide molecule ismade from 1 Carbon atom and 2 Oxygen atoms.

Key word

Arabic | sheet 16

Elements such as goldcontain only one typeof atom

An atom is the smallestpart of an element youcan have

Many compounds aremade of molecules

CH4 + 2O2 CO2 + 2H2O

Context

KS3 Science | ParticlesKey word

Arabic | sheet 17

Chemical reactions

Natural gas(methane)

OxygenCarbondioxide

Water

+ +

Word equation

Symbol equation

Methane + Oxygen Carbon dioxide + Water