scientific method - method scientists use to ensure explanations are as accurate as possible, observations - information gained using your senses or measurements taken, independent variable - the variable that the scientist changes, dependent variable - the factor being tested and measured, control group - receives no experimental treatment, qualitative data - information gained that describes qualities, quantitative data - information gained using numbers, theory - really well supported hypothesis, law - scientific description of the relationships between variables that never changes, polar molecules - molecules that have sides with opposite charges, hydrogen bonds - bonds formed between water molecules, cohesion - why some insects can walk on the surface of the water, adhesion - allows capillary action to occur, high specific heat - water resists temperature changes, solubility - how easy something dissolves, pH of 8-14 - base, natural selection - species change in response to pressure from their environment, genetic code - DNA/RNA, metabolism - combination of all chemical reactions that allow an organism to live, homeostasis - maintaining a constant internal environment,

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