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25 Cards in this Set
- Front
- Back
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Absorption
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The passing od digested food (molecules) through the walls of the small intestine and into the blood.
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Acceleration
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the change of velocity per second. Measures in meters per second (ms-2)
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Acid
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A compound containing hydrogen which can be replaced by a metal to form salt. An acid turns blue litmus paper red.
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Acid Rain
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Rainwater with a pH less than 5.5 (the pH of normal rainfall)
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Activity Series
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A list of metals placed in order of how reactive they are
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Adaption
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The way of which living things adjust to their surroundings so they can survive and reproduce better.
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Aerobic
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Needing Oxygen
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Aerobic Respiration
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the process by which living cells use food and oxygen to release energy for all their activity
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Alkali
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Substance that reacts with an acid to form salt and water only. An alkali turns red litmus paper blue.
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Alkali Metals
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The elements of group 1 of the periodic table. The include elements 'lithium, sodium and potassium'
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Alkaline Earth metals
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The Elements of Group 2 of the periodic table. they include the elements 'magnesium, and calcium'
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Alloy
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A mixture of metals
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Alternating current
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Electrical current supplied by the ESB, it changes direction many times per second.
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Ampere (amp)
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The unit of electric current
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Antagonistic muscles
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Muscles that work opposite eachother ( biceps and triceps) to effect movement.
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Anther
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The part of the flower that produces the pollen
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Antibiotic
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A chemical made by a fungus and used to kill bacteria
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Antibody
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chemical produced by white blood cells to fight infection.
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Area
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The amount of surface an object has
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Artery
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A blood vessel that carries blood away from the heart
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Asexual Reproduction
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Reproduction that involves only one parent
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Assimilation
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the conversion of nutrients into complex chemicals in the cells of an organism
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Atmospheric Pressure
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The force exerted by the weight of the atmosphere per unit area
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atom
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the smallest part of an element that still has the properties of that element. The atom is made up of sub-atomic particles such as ' protons, neutrons and electrons'
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Atomic nu,ber
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The number of protons in an atom of an element
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