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Biology EOI Review

Biology EOI Review. P.A.S.S. Objectives. Science Processes & Inquiry P3.1, P3.2, P3.4, P4.4, P4.5, P6.1, P6.2. Steps to the Scientific Method. State a Problem (in the form of a question) Research background information State a testable hypothesis (an educated guess)

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Biology EOI Review

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  1. Biology EOI Review

  2. P.A.S.S. Objectives Science Processes & Inquiry P3.1, P3.2, P3.4, P4.4, P4.5, P6.1, P6.2

  3. Steps to the Scientific Method • State a Problem (in the form of a question) • Research background information • State a testable hypothesis (an educated guess) • Set-up a controlled experiment • Collect and analyze data • Conclusion (either null or accepted) • Re-work hypothesis, if null conclusion

  4. Experiment Set-Up • Independent Variable – what causes a change; the one item different in experimental set ups. • Dependent Variable – what changes or the results of the change if any; what is measured. • Constant – factors that are kept the same in both groups. • Control – the experimental set up that is not receiving the Independent Variable; what might be considered “normal” conditions.

  5. Example of the Scientific Method • Problem: Does Raid or Black Flag kill ants better? • Read the can labels & look for chemical differences. • If Raid contains chemical “X” then it will kill more ants than Black Flag (BF). • 3 sets of ten black ants, all under the same environmental conditions: 1 is given a 1 second blast of Raid; 1 is given a 1 second blast of BF; and the 3rd is left alone (control) • In the Raid container, 8 of 10 ants died; In the BF container, 7 of 10 ants died; In the control, 2 of 10 ants died • Conclusion: Both products seem to work about the same on black ants.

  6. Measurement Prefixes: words in place of numerical values |_micro-__|_______|_______|__milli-__|_centi-__|_deci-__|__Base__|__Deka- |_Hecto-_|_Kilo-_| 1/1000000 1/1000 1/100 1/10 Unit (1) 10X 100X 1000X 10-6 10-5 10-4 10-3 10-2 10-1 10 0 101 102 103 (0.000001) (0.001) (0.01) P.A.S.S. Objective: P1.3

  7. Conversion of measurements 1. Change 1 meter into centimeters: 1 m X 100 cm = 100 cm 1 m 2. Change 5 cm to microns (micrometers): 5 cm X 1 m X 1 x 106 µm = 5 x 104 µm 100 cm 1 m P.A.S.S. Objective: P1.3

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