Intro to biology part 2
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Intro to biology part 2. By: Amelia Sommer , Madison Jones, Marikit Mendiola , Sean Nguyen Per. 1. Scientific method. Hypothesis: a testable statement that can be shown to be true or false by experimenting or observation Experiment:

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Intro to biology part 2

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Intro to biology part 2

Intro to biology part 2

By: Amelia Sommer, Madison Jones, MarikitMendiola, Sean Nguyen

Per. 1


Scientific method

Scientific method

  • Hypothesis: a testable statement that can be shown to be true or false by experimenting or observation

  • Experiment:

    Experimental Group: receives some kind of treatment or condition.

  • Independent Variable: Treatment or factor that is changed

    Control Group: receives no treatment, used to compare. It is important to have a control to compare and validate results.


Intro to biology part 2

Cont.

  • Data: a scientist carefully collects and organizes data from the experiment. Data should always be presented in a neat fashion, usually tables.

  • Analysis: Data can be powerfully displayed as a graph

  • Conclusion: Based on the data, a scientist then determines whether the hypothesis was supported or refuted


Language of science

Language of science


Language of science1

Language of science

  • Examples:

    • Biology

    • Geology

    • Microbiology

    • zoology


Procedure writing

Procedure writing

  • Write each step out

  • Make it detailed

  • Conclusion should be precise and to the point


Chapter 1 reading guide

Chapter 1 reading guide

  • Quantitative: numeric data

    • 20 cats each weighing 20 lbs

  • Qualitative: descriptive data

    • All the cats are orange with purple stripes, and are soft


Intro to biology part 2

Cont.

  • Controlled variable: factor that is purposely kept the same

    • Ex. Gravy boiled flask

  • Manipulated variable (independent): factor that is purposely changed

    • Flask is either sealed or unsealed

  • Responding variable (dependent): factor that is being observed, which may change in response to the manipulated variable

    • Growth of microorganisms


Intro to biology part 2

Cont.

  • Observation: use of one or more senses to gather information

  • Variables: factor in an experiment that can change

  • Theory: well tested explanation that unifies a broad range of observations


Characteristics of living things

Characteristics of living things

  • Made up of cells

  • Reproduce

  • Based on universal genetic code

  • Grow and develop

  • Obtain and use materials and energy

  • Respond to their environment

  • Maintain a stable internal environment

  • Taken as a group and changed over time


Labeled microscope

Labeled microscope


Multiple choice q s

Multiple choice q’s

Review

(answers on final slide)


Question 1

Question #1

  • What is a hypothesis?

    • A) treatment or factor that is changed

    • B) well tested explanation that unifies a broad range of observations

    • C) testable statement can be shown true or false by experimenting or obersvation

    • D) use of one or more senses to gather information


Question 2

Question #2

  • A) study of cells

  • B) study of humans

  • C) uncovered seed

  • D) below skin

Match the word with the definition:

  • 1) Anthropology

  • 2) Gymnosperm

  • 3) Cytology

  • 4) Hypodermic

    • (prefix and suffix list on slide #4)


Question 3

Question #3

  • A) descriptive data

  • B) study of life

  • C) numeric data

  • D) nerve pain

  • Match each with the definition:

    • 1) quantitative

    • 2) qualitative

    • 3) biology

    • 4) neuralgia


Question 4

Question #4

  • Which is the definition of an independent variable?

    • A) factor that is purposely kept the same

    • B) factor that is purposely changed

    • C) testable statement that can be true or false

    • D) factor that is being observed which may change in response to the manipulated variable


Question 5

Question #5

  • What does the coarse adjustment knob do?

    • A) holds the slide in place

    • B) moves the stage slightly to sharpen image

    • C) moves the stage up and down for focusing

    • D) used to support the microscope when carried


Question 6

Question #6

  • What is the definition of variable?

    • A) use of one or more senses to gather information

    • B) factor in an experiment that can change

    • C) well tested explanation that unifies a broad range of observations


Question 7

Question #7

Match each letter with the correct number

  • 1) diaphragm

  • 2) objective lense

  • 3) eye piece

  • 4) base


Question 8

Question #8

  • What does the prefix carn- mean?

    • A) ten

    • B) lungs

    • C) eat

    • D) meat


Question 9

Question #9

  • True or false

    • Grow and develop is a characteristic of a living thing

    • Qualitative is numeric data


Question 10

Question #10

  • Our elephant died this morning. We predicted it was of starvation. To test this hypothesis, we placed three elephants in the wild without food and left them there. 3 weeks later, we came back and the elephants were all still alive. Is the hypothesis proven correct?

    • A) yes

    • B) no


Answer key

Answer key

  • 6) Answer is B

  • 7)Answers: 1-D,2-B,3-A,4-C

  • 8) Answer is D

  • 9) Answers: true, then false

  • 10) no

  • 1) Answer is C

  • 2) Answers: 1-B, 2-C, 3-A, 4-D

  • 3) answers: 1-C, 2-A, 3-B,4-D

  • 4) Answer is B

  • 5) Answer is C


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