Science Definitions

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  • Created by: Jodie
  • Created on: 11-11-12 10:40
accommodation
changing the lens shape to socus on a sharp image
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acetylcholine
a neurotransmitter that carries a nerve impluse across nerve synapses to stimulate an impluse in the next neuron
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acid rain
rainwater, snow or fog that contains dissolved chemicals, such as sulfur dioxide
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acid
a chemical that reacts with a base to produce a salt and water. tastes sour
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alveoli
tiny air sacks i the lungs at the ends of the narrowest tubes. this is where carbon dioxde and oxygen are swapped around
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aorta
a large artery which pumps oxygenated blood from the left ventricle of your heart to your body
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base
a chemical substance that nutralises with acid it tastes bitter.
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bile
a substance produced by the liver that helps digest fats and oils
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brain stem
a part of the brain conected to the spinal cord. responsible for breathing, heartbeat and digestion
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cerebrum
the largest part of the brain. responisible for high order thinking and controlling speech
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corrosive
describes a chemical that wears away substances
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endocrine system
the body system of glands that produce and secrete hormones into the blood stream.
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endothermic
chemical reactions that absorb heat energy from its surrondings
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exothermic
chemical reactions that give out heat
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kidneys
filters blood removing urea and other wastes,.
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law of conservation mass
states that in a chemical reaction, the total mass of the reactants is the same as the total mass of poducts
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pH scale
1-6 acid 7 nutral 8-14 base
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Other cards in this set

Card 2

Front

a neurotransmitter that carries a nerve impluse across nerve synapses to stimulate an impluse in the next neuron

Back

acetylcholine

Card 3

Front

rainwater, snow or fog that contains dissolved chemicals, such as sulfur dioxide

Back

Preview of the back of card 3

Card 4

Front

a chemical that reacts with a base to produce a salt and water. tastes sour

Back

Preview of the back of card 4

Card 5

Front

tiny air sacks i the lungs at the ends of the narrowest tubes. this is where carbon dioxde and oxygen are swapped around

Back

Preview of the back of card 5
View more cards

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