intro to biology part 2

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By: Amelia Sommer, Madison Jones, Marikit Mendiola, Sean Nguyen Per. 1 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: - PowerPoint PPT Presentation

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Page 1: Intro to biology part 2

By: Amelia Sommer, Madison Jones, Marikit Mendiola, Sean Nguyen

Per. 1

INTRO TO BIOLOGY PART 2

Page 2: Intro to biology part 2

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.

Page 3: 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

Page 4: Intro to biology part 2

LANGUAGE OF SCIENCE

Page 5: Intro to biology part 2

LANGUAGE OF SCIENCE

• Examples:• Biology• Geology• Microbiology• zoology

Page 6: Intro to biology part 2

PROCEDURE WRITING

• Write each step out

• Make it detailed

• Conclusion should be precise and to the point

Page 7: Intro to biology part 2

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

Page 8: 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

Page 9: 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

Page 10: Intro to biology part 2

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

Page 11: Intro to biology part 2

LABELED MICROSCOPE

Page 12: Intro to biology part 2

Review

(answers on final slide)

MULTIPLE CHOICE Q’S

Page 13: Intro to biology part 2

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

Page 14: Intro to biology part 2

Match the word with the definition:

• 1) Anthropology

• 2) Gymnosperm

• 3) Cytology

• 4) Hypodermic

• (prefix and suffix list on slide #4)

• A) study of cells

• B) study of humans

• C) uncovered seed

• D) below skin

QUESTION #2

Page 15: Intro to biology part 2

• Match each with the definition:

• 1) quantitative

• 2) qualitative

• 3) biology

• 4) neuralgia

• A) descriptive data

• B) study of life

• C) numeric data

• D) nerve pain

QUESTION #3

Page 16: Intro to biology part 2

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

Page 17: Intro to biology part 2

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

Page 18: Intro to biology part 2

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

Page 19: Intro to biology part 2

• Match each letter with the correct number

• 1) diaphragm

• 2) objective lense

• 3) eye piece

• 4) base

QUESTION #7

Page 20: Intro to biology part 2

QUESTION #8• What does the prefix carn- mean?

• A) ten

• B) lungs

• C) eat

• D) meat

Page 21: Intro to biology part 2

QUESTION #9• True or false

• Grow and develop is a characteristic of a living thing

• Qualitative is numeric data

Page 22: Intro to biology part 2

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

Page 23: Intro to biology part 2

• 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

• 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

ANSWER KEY