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ah science exam

QuestionAnswer
why would a scientist use prior experience? avoid making mistakes that others have done;you are not recreating experiments already proven
list the steps of a scientific method identify the problem, form hypothesis, test hypothesis, analyze your data, draw conclusions
why do scientist conduct multiple trials? to see if the result stays the same and to see if you get the right answer
why should you reduce bias in an experiment? you might get diffrent answers and want to have a certain one
know the diffrence between skills and steps that scientists use. one is when you practice how to identify the steps and the other is when steps would be a part of the scientific experiment
know the units that are part of the SI unit volume, mass, speed, and distance
know the units use when measuring volume, mass, and density volume-space of an object, mass-matter of an object, and density-the width of an object
know KHDMDCM values k=1000; h=100; d=10; m=.L,g,m; d=.1; c=.01; m=.001
SI units are all in multiples of what? 10
how are infectious diseases spread? water,air, and food
list the first-line of defences use to fight diseases skin, digestive, circulatory, and respotary system
your immune system consists of what that fight disease? cells, tissue, and organs
when your immune system reconizes a foreign protein or chemical, it forms specific what? antibodies
infectious disease are caused by what? viruses, fungi, and bacteria
Louis Pasteur was the first to discover that what can cause disease? bacteria
list a charicteristic of cancer overgrown cells
antibodies work by attaching to the what , making them useless? the antigen
list everyday allergens dust, pollen, amd mold
what are lymphocytes? white blood cells that fight off diseases
what is one way to develop active immunity to a disease? to get vacines from injections
Created by: marcrobertdillon
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