Science exam 2022

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Last updated 7:08 AM on 11/16/22
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50 Terms

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extrusive igneous rocks
smaller crystals
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igneous
basalt, pumice, granite, obsidian
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Palaeontology
study of fossils
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Sedimentary
limestone, conglomerate, coal
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Metamorphic
marble, gneiss, quartzite
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Constructive plate margin
plates move away from eachother - volcanoes
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Destructive plate margin
plates move toward eachother - mountains, trenches, earthquakes
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Conservative plate margin
plates slide against eachother
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Energy
the ability to do work/make something happen
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Law of conservation of energy
In any Energy Transformation, the energy input is equal to the energy output. Energy is neither created or destroyed, but energy is conserved.
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Energy efficiency
useful energy output/total energy input x100
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Density
the amount of particles (measured as mass) in a certain volume
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Diffusion
movement of liquid/gas particles from an area of high concentration to an area of low concentration
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Matter
anything that has mass and volume, takes up space
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Mass
weight
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Volume
Space taken up
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Sublimation
change of a solid to a gas without being a liquid
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Deposition
change of a gas to a solid without being a liquid
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Signs of Chemical change
bubbles of gas, colour change, temperature change, Formation of solid precipitate
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Signs of physical change
change of shape/size/state
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Physical change
reversible
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Chemical change
new substance created by breaking and making chemical bonds
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Neutron charge
neutral
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Neutron
Mass number - Atomic number
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Proton charge
positive
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Proton
Atomic number
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Electron charge
negative
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Electron
Atomic number
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Maximum electrons per shell
2(Shell number squared)
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In a nuclear symbol
Mass number over Atomic number
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Red blood cells
bind Oxygen and carry it from lungs to body cells
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White blood cells
fight infection
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Larynx
Voice box
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Trachea, bronchus, bronchiole
carries air into the lungs and carbon dioxide out of the lungs
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Diaphragm
sheet of muscle that separates the chest from the abdomen and contracts when a breath is taken
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Bolus
Ball of food
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Gall bladder
Stores bile which is produced by the liver to help break down fatty foods
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Liver
removes toxins from blood and is a short term store for glucose
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Stomach
food is stored and mixed with gastric acid to digest
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Pancreas
produces pancreatic juice which helps digest food
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Small intestine
breaks down Food, absorbs nutrients and gets rid of unnecessary components
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Large intestines
water absorbed into the body and remaining food and nutrients are left as waste
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anus
waste expelled from body
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Peristalsis
rhythmic movement through digestive system
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Epididymis
Stores sperm
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Vas deferens
Transports sperm to seminal vesicle
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Prostate gland
regulates flow from bladder
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testes
sperm produced
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penis
expels urine and semen
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Cell theory
all cells come from pre-existing cells, cells are the building blocks of life, all life made up of cells