Flashcards
KS3 Science Keywords
Flashcards do conjunto (246)
- 1MovementWhen organisims move in order to survive.
- 2ReproductionOrganisms producing offspring
- 3SensitivityOrganisms respond and reacy.
- 4NutritionWhen organisms eat in order to survive.
- 5ExcretionOrganisms getting rid of waste.
- 6RespirationWhen organisms react with oxygen in order to survive (For energy)
- 7GrowthWhen organisms grow .
- 8TissueLots of similar cells working together.
- 9BrainThis controls the rest of the body
- 10HeartThis pumps blood around the body.
- 11LeafThis is the main organ of photosynthesis.
- 12StomachThis helps digest food.
- 13FlowerThis organ makes seeds into a plant.
- 14NucleusControls what the cell does.
- 15CytoplasmLarge space where chemical reactions occur.
- 16Cell wallCovers the cell membrane and provides strength for the plant cell.
- 17ChlorophlastAbsorbs light energy to make food for the plant
- 18VacouleStores water in a plant cell.
- 19Ciliated CellIts surface is covered in tiny hairs called cilia, these brush up dirt and germs up.
- 20Palisade CellContains green discs called chloroplast, absorb light to make food.
- 21Sperm CellUses tail to swim, head contains nucleus which enter ovum during fertilization.
- 22Root Hair CellAbsorb water from soil, with a large surface area.
- 23Seven Food Main ChemicalsCarbohydrate
Protein
Fat
Vitamins
Minerals
Fibre - 24CarbohydrateProvides energy very fast unlike fats.
- 25ProteinFor growth, health and repair.
- 26FatsFor insulation and to provide long term energy.
- 27Vitamins/MineralsNeeded in small amounts to keep the body healthy.
- 28FibreFor a healthy digestive system and allows nutritients to smoothly digest.
- 29Stages of digestionFood is digested in the mouth, stomach and small intestine
- 302nd Stage of DigestionDigested food is absorbed into the bloodstream in the small intestine
- 313rd Stage of DigestionExcess water is absorbed back into the body in the large intestine.
- 32Last Stage of DigestionAny undigested food passes out of the anus as faeces when we go to the toilet.
- 33PlasmaIt carries:
waste carbon dioxide from cells to lungs,
dissolved food to cells
waste urea,
hormones. - 34Red CellsNo nucleus and carry oxygen from lungs to the cells.
- 35White Blood CellsNo nucleus and fights against germ which enter blood.
- 36PlateletsSmall pieces of cells,
no nucleus,
help blood clot. - 37Blood VesselsCarry blood around body in tube called...
- 38Three Types of Blood VesselsArteries, veins and capillaries.
- 39VeinsCarry blood back to the heart.
- 40CappilariesThin cell walls, useful chemicals to body and remove waste chemicals away from blood cells.
- 41JointsAllow movement around the body.
- 42Contract (Short)Muscles ...... in order to pull.
- 43Antagonistic pairsA pair of muscles which work against each other top provide movement.
- 44Male Symptoms during pubertyProduce sperms,
release hormone called testosterone,
voice becomes deeper,
hair grows on face and body,
body becomes more muscular,
change in attitude and behavior. - 45Females Symptoms During PubertyOvaries start to release ova,
hormone called oestrogen,
monthly menstrual cycle starts,
hair grows on parts of body,
hips widen,
breasts develop. - 46EmbryoWhen a baby starts growing in the uterus.
- 47FoetusWhen foetus reaches to 9 weeks old.
- 48PlacentaSpecial organ which is in the wall of uterus,
Provides food and oxygen. - 49PlacentaSpecial organ which is in the wall of uterus,
Provides food and oxygen. - 50Umbilical CordRemoves waste substances for example: urea, carbondioxide and waste chemicals.
- 51Blood Carrying WasteEnters lungs and flows around alveolis.
- 52Inhaling (Breathing in)increase volume, decrease in pressure,muscles contract to pulll ribcage outwards.
- 53Exhaling (Breathing out)Decrease in volume, oincrease in pressure, muscles relax which pull ribcage inwards.
- 54SmokingDamages ciliated hair cells and cilia muscles therefore pathogens can enter in to lungs.
- 55BronchiatisA chest infection and a nasty cough.
- 56Respiration EquationOxygen + Glucose = Carbondioide + Water.
- 57AlcoholSlows speed reactions, cause damage to heart, liver and brain.
- 58TobaccoPoisonous, addictive and causes cancer, bronchitis,lung damage and heart disease.
- 59CannabisCauses halluncinations (Seeing things when they arent there), confused and cause fatal accidents.
- 60SolventsDizziness, halluncinations and damage to the heart.
- 61MicrobesAre germs which live in our bodies.
- 62MicrobesAre germs which live in our bodies.
- 63Types of GermsBactiera and virus.
- 64BactieraHarm us by attacking our cells and producing poisonous waste chemicals.
- 65BactieraHarm us by attacking our cells and producing poisonous waste chemicals.
- 66VirusesAre much smalller than bactiera,injects DNA instructions into a cell which makes Cell to produce more virus cells.
- 67A Typical BacteriumSome have slimy coating,
simple nucleus,
cell wall/membrane,
Cytoplasm. - 68VirusOuter coat,
feets attacjed to a cell,
DNA injected into cells. - 69PhagocyteBactiera are taken in and digested.
- 70LymphocyteProduce chemicals called anti-bodies.
- 71PhotosynthesisWhen plants make their own food by absorbing light in order to make plants energy.
- 72GlucoseWhen water and oxygen join molecules to form energy.
- 73ChlorophlastsIs tiny discs in leaf cells which form leaves.
- 74ChlorophyllIs a green chemical which is in chlorphlasts.
- 75Root Hair CellsAbsorb: Nitrogen, phosphorus and magnesium.
- 76NitrogenTo make proteins for growth.
- 77MagneisiumA green chemical chlorophyll for photosynthesis to occur.
- 78PhosphorusFor good root growth.
- 79FungiNo green chemical, dont make their own food and feed on dead matieral.
- 80AlgaeLive in water, no roots or leaves and make their own food.
- 81Mosses and LiverwortsSmall simple roots and leaves, grow in damp places.
- 82FernsHave well developed roots, grow in damp and reproduce spores.
- 83ConifersTrees with tough needle shaped leaves and no flowers.
- 84PollinationPollen grains carried from one flower to another by insects or wind.
- 85PollinationPollen grains carried from one flower to another by insects or wind.
- 86FertilisationWhen the sex cells join together.
- 87ButtercupInsect pollinated, flowers are colourful and well scented.
- 88Grass FlowersWind pollinated, flowers are light and feathery to catch breeze.
- 89Fruit TypesSycamore, Burdock and blackberries.
- 90SycamoreHave wings and are dispersed by wind.
- 91BurdockHave hooks to catch animal fur.
- 92BlackberriesJuicy and seed do not digest.
- 93InverterbratesAnimals without a back bone.
- 94VerterbratesAnimals with a back bone.
- 95Jellyfish and AnemonesLive in sea, simple body with tentacles.
- 96FlatwormsLong flat body, some live in fresh water and some live inside other animals.
- 97Segemented WormsLong body divided in ring of sediment.
- 98MollucusHave a shell,most live in water and have tentacles.
- 99Starfish and Sea UrichinsAll live in sea, thick skin which maybe covered in spines.
- 100Centipedes amd MillipedesLong bodies, one pair of legs millipedes have two.
- 101FishLive in water, have gills and covered with scales.
- 102AmphibiansLive in water with gills and adult lives on land with lungs.
- 103ReptilesDry, scaly waterproof skin, eggs have tough shelland are laid on land.
- 104BirdsCovered in feathers, wings for flying, eggs have hard shell and have beak for feeding.
- 105MammalsHave hair, warm body, young develop inside mothers body and young feed on milk.
- 106VariationSmall differences which no two humans are exactly alike.
- 107Continuous VariationWhen a feature shows many different types eg: height.
- 108Discontinous VariationmWhen a feature only shows a few different types.
- 109GenesAre types of DNA which control variation.
- 110EnvironmentSurroundings that individuals live in.
- 111GeneticIs when the ovum and the sperm fuse together to give as mixture of their features.
- 112EnvoirimentFood supply affects the growth rate and climate effects how animals and plants develop.
- 113ChronosomesHold the genes that control a person`s features in how they develop.
- 114Selective BreedingThis means picking out particular features of organisms then breed both animals together in order to pass on the generation.
- 115EvolutionWhen animals and plants slowly change over million of years.
- 116Natural SelectionIs when nature is selecting which ones survive and breed.
- 117AdaptationsAll special features which will help them in order to survive.
- 118HabitatIs where a plant or animal lives.
- 119Environmental ConditionsIs required things in order to survive for example: Temperature, Light, Water and Oxygen.
- 120NocturnalWhen an animal is only active at night because it`s more cooler.
- 121HibernateWhen animals go into a very deep sleep.
- 122MigrateWhen animals go to another country to gain a better lifestyle during the winter.
- 123PhotosynthesisA process which allows green plants to absorb sunlight in order to survive.
- 124Food ChainWhen food energy is passed along the food chain which allows animals to survive.
- 125HerbivoresAre animals which eat plants.
- 126Carnivores/PredatorWhen animal goes and hunt animal in order to survive.
- 127PreyIs the victim which has been eaten by the predator.
- 128Pyramid of NumbersAre usually large at the bottom and the smallest amount at the top.
- 129Food WebsAre lots of animals connected together to give an idea of whats being eaten.
- 130PesticidesWhen farmers spray their cops with this chemical in order to prevents the pests, insects and weeds.
- 131Biological ControlWhen controlling pests by using their natural enemies.
- 132Three Types of MatterSolid, Liquids and Gases.
- 133SolidsParticle in pattern, Strong forces, compressed easily and high density.
- 134LiquidsParticles can flow, held close together and are dense.
- 135GasesWeak forces, Particles move around, medium density and cannot be compressed.
- 136Solid ExampleIce because it is a sold when freezed.
- 137Liquid ExampleIs water because from a solid to a liquid the substance must be heated.
- 138Gases ExampleIs steam when liquid is heated to form a gas.
- 139PressureWhen particles bump against the walls.
- 140DiffuseWhen gases spread out from a lower concentration to a lower concentration.
- 141AtomAn element which cannot be broken down into anything simpler.
- 142NucleusIs in the center of atom consisting with many electrons
- 143Outer ShellHas four electrons altogether.
- 144Inner shellConsist of two electrons altogether.
- 145NucleusConsist of six neutrons and six protons.
- 146ProtonPositively charged.
- 147NuetronNeutral charge (No charge).
- 148ElectronNegatively charged.
- 149Atomic NumberIs the number of protons that an atom contains.
- 150Periodic TableAll of the elements are arranged in this particular table.
- 151PeriodsSeven rows of elements.
- 152CompoundsWhen elements join together by chemical reaction to form a compound.
- 153Coal BurningCarbon + Oxygen => Carbon dioxide + Heat
- 154Hydrogen ExplodingHydrogen + Oxygen = Water + Heat
- 155Making SaltSodium + Chlorine = Sodium Chloride.
- 156FiltrationSeparating small, solid Particles from liquids, using filter paper and a funnel.
- 157DistilationThis method separates dissolved chemicals from liquids which are dissolved in solvents.Water evaporates from boiling tube leaving substance behind.
- 158ChromatographyWhen ink is being separated ,as water rises up it takes colors up with it leaving different shades of colors.
- 159Different Separating MethodsFiltration, distillation and chromatography.
- 160MetalsShiny at room temp,
solid apart from Mercury at room temp liquid,
shiny and good heat electricity conductors,
some magnetic. - 161Non MetalsLow melting point
Gases at room temp,
Poor conductors of heat and electricity,
Exception to Graphite because it consist of carbon,
Non-Magentic - 162SoloubleWhen a solid dissolves in a liquid.
- 163SoluteThe substance which is being dissolved.
- 164SolventThe liquid that the solute dissolves in.
- 165SolventIs the whole overall solution.
- 166SaturatedWhen non more will dissolve because it is full.
- 167ExpansionHappens when particles gain more energy and vibrate more.
- 168Weatheringwhen rocks slowly break up by the weather.
- 169Types of WeatheringRain, wind, expansion and contraction, and freeze-thaw.
- 170Rock CycleNeed a picture.
- 171Igneous rockswhen molten magma cools down, tiny crystals and very hard.
- 172Sedimentary RocksFormed of layers of sediment, grainy structure, crumble quickly and layers of rock are called strata.
- 173Metamorphic rocksIgneous and Sedimentary rocks pressured to form metamorphic rocks.
- 174ElementsSimple substances.
- 175ProductsChemicals which are made after reaction.
- 176CompoundWhen chemicals chemically formed together to form a substance.
- 177reactantsStarting chemicals.
- 178DecompositionWhen substances break down into smaller substances.
- 179SynthesisTwo or more substances join together to make as new single substance.
- 180OxidationWhen during the chemical reaction reacts with oxygen which forms heat and light.
- 181Two main raw matieralsMetal ores and crude oil.
- 182OresMust react with other chemicals to extract the metals they contain.
- 183HaemtiteConsist of iron ores which consist of iron oxide.
- 184Crude OilIs an type of oil which is natural from the ground.
- 185RustingIs when a metal reacts with oxygen therefore it goes rusty.
- 186Burning FuelsFuel + Oxygen => Carbon dioxide + Water.
- 187Greenhouse EffectBurning fuels which consist of carbon dioxide which leads to a higher risk of global warming and climate change.
- 188Acid RainWhen oil and coal release sulfur dioxide which then makes the rain go more acidic.
- 189Displacement ReactionsWhen a metal is more reactive than the other metal so it displaces the other metal.
- 190CorrosiveAre substances which are poisonous and can possibly kill you.
- 191NuetralIs part of a PH scale which is between the acids and alkali.
- 192Strong acidsHydrochloric acid and sulfuric acid.
- 193Weak acidEthanoic acid (in vinegar)
- 194Strong AlkaliSodium hydroxide, oven cleaner and washing powder.
- 195Weak AlkaliSoap and sodium bicarbonate.
- 196Universal IndicatorIndicates whether the substance is an acid, alkali or neutral using colors.
- 197Acid & MetalsAcid + Metal => Hydrogen + Salt.
- 198Acid & BasesAcid + Base => Salt + Water.
- 199Acid & CarbonateAcid + Carbonate => Carbon
dioxide + Water. - 200BaseIs a chemical which neutrilise acids.
- 201Acid IndigestionWhen stomach produces or intakes too much acid.
- 202Insect StingsWasp sting & Bee sting.
- 203Wasp StingIs alkali therefore treat it with vinegar (weak acid).
- 204Bee StingAcidic so treat it with an alkali E.g. Sodium bicarbonate (Baking powder).
- 205ConductorsAre metals which conduct heat and electricity.
- 206InsulatorsAre non-metals which are poor conductors of heat and electricity.
- 207ResistorsAre length of wires which reduce current in the circuit.
- 208Magnetic FieldAre invisible magnetic forces around a magnet.
- 209AttractonWhen north and south poles attract to each other.
- 210SolenoidWhen the magnetic field is wrapped around a coil of wire.
- 211SpeedDistance
------------
Time - 212DistanceSpeed times by Time.
- 213ForceIs an push or pull which is measured in Newtons (N).
- 214Unbalanced forcesWill change shape or direction.
- 215FrictionIs a force which stops two surfaces sliding past each other.
- 216PivotIs the rotation or turning point.
- 217Turning ForceCan be increased by increasing length of lever.
- 218PressureForce
--------
Area - 219ForcePressure times by Area.
- 220LuminousAre objects which make their own light.
- 221ReflectionWhen we see opposite objects due to light bouncing off them.
- 222Reflected RaysLeave the surface of the mirror at the same angle they came at.
- 223Incident RaysAre rays which hit the mirror.
- 224MediumAny material which light can travel through.
- 225RefractionIs when light travels from one medium to another.
- 226PrisimIs a triangular glass block, if light is passed through ..... it is refracted.
- 227SpectrumA variety of different types of colors.
- 228ROY G BIVRed, Orange, Yellow, Green, Blue, Indigo and Violet.
- 229Ear BonesCarry vibrations to cochlea.
- 230Semi-Circular CanalsThis gives senses of balance of body and ear.
- 231Audioutery nerveCarries nerve impulses from brain to the cells.
- 232Ear DrumVibrates when sound waves vibrate.
- 233Hearing RangeIs the range of a person can hear.
- 234Sound wavesAre caused by vibrating objects.
- 235AmplitudeIs the height of the waves.
- 236FrequencyIs number of waves per second.
- 237PitchIs how loud the sound is.
- 238VaccumnIs a object where sound cannot travel through.
- 239AxisIs the imaginary line that runs from the north pole to the sound pole.
- 240Seasons of The YearAutumn, Spring, Summer and Winter.
- 241Solar System PlanetsMercury, Venus, Earth, Mars, Jupiter, Uranus, Neptune and Pluto.
- 242Plants RemembranceMy Very Easy Method Just Speeds Up Naming Planets.
- 243GravityIs a force which attracts the planets to the sun.
- 244SatelliteIs any object which travels around a planet.
- 245Natural SatelliteA satellite that humans have or did not create.
- 246Artificial SatelliteIs a satellite which was created by humans for weather reports, signal and many more things.
Informações
- Descrição
- AQA science FlashCards sobre KS3 Science Keywords, criado por luqman12358 em 11-11-2014.
- Criado por
- luqman12358
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