Scientific Method Collect Facts and Data Hypothesis Test hypothesis Modify hypothesis Conclusion.

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Presentation transcript:

Scientific Method Collect Facts and Data Hypothesis Test hypothesis Modify hypothesis Conclusion

Hypothesis Tentative explanation of the relationship between two or more variables that provide a basis for further experimentation

Theory Well established hypothesis…explains general phenomena…backed by facts…explain natural phenomena…accepted by scientific community until disproven or amended

Scientific laws Simple statement of natural phenomena to which no exceptions are known under the given condition.

Matter Anything that has mass and takes up space

Substance Matter with a definite fixed composition: pure substance. Substances are categorized as elements or compounds.

Elements Individual elements from the periodic table Carbon Oxygen Nitrogen Etc…

Compounds Two or more elements Water Sodium chloride Potassium carbonate

Mixture Material containing two or more substances Heterogenous or homogeneous Composition varies

Homogenous A solution A mixture that is the same form and composition throughout

Heterogenous A mixture of two or more different substances

Solution Homogeneous mixture Different from a pure substance A mixture has two or more substances