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The Scientific Method 1 and 2 |
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1. State a problem or question 2. propose a hypothesis |
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3.Test hypothesis via an Experiment a. Control - unchanged, standard of comparision b. Variable - manipulated or changed c. Constants - factors stay the same |
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-Variable that you manipulate - One difference control and experimental group ex: Alchol |
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| That what you Measure or observe |
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The Scientific Method 4 and 5 |
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4. Analyze Experimental Results 5. Draw Conclusions a. support hypothesis b. reject hypothesis > propose hypothesis and perform another experiment |
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| 8 Characteristics of life |
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Organized Acquire materials and energy Reproduce Respond to Stimuli Homeostatic Grow and develop Adapted Cells basic unit of life |
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| the science of identifying and classifying organisms according to specific criteria. |
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| Classification of living Things |
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Kingdom Phylum Class Order Family Genus Species Domain
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| Unicellular prokaryotes that lack a membrane-bound Nucleus. |
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| Showing cellular complexity and having a nucleus and other organelles. |
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| 4 main elements in the human body |
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| Nitrogen, Oxygen, Hydrogen, and Carbon |
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| Smallest particle that retain properties of an element |
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how elements are arranged Number of protons all atoms of an element have the same atomic number ex: hydrogen 1 , carbon 6 |
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Larger of the two numbers Number of protons + Number of Neutrons = Mass big number - small number = Neutrons |
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Atoms of an element with different number or neutrons ex: carbon 12. has 6 protons, 6 neutrons carbon 14. has 6 protons, 8 neutrons. |
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repel one another move in orbitals - volumes of spaces that surround the nucleus |
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union between electron structures of atom. atoms bond to form molecules. |
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one atom loses electrons becomes positively charged ion. another atom gains electrons becomes negatively charged ion |
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| atoms share a pair or pairs of electons to fill the outtermost shell. |
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measure of acidity 0---------------7-----------14 acid neutral base Strong A Strong B |
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| Organic Compounds: Maco Molecules / Biological important molecules |
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Carbs Lipids Proteins Nucleic Acids |
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Hydroxyl - OH Amino - NH3 Carboxyl - COOH Phosphate - PO3 Ketone - CO |
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Removal of water ex: think dehydrate small to large |
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Addition of water ex: large to small |
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Building Block of Carbs carbs high in sugar and starch |
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| chain of amino acids linked by by peptide bonds |
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-Sugar -at least one phosphate -nitrogen containing base |
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