Chapter 1.1 The method Of science

Question 1

Define Science

Answer 1

Process that uses observation and investigation to gain knowledge about events in nature

Question 2

Define Scientific Method

Answer 2

An organized set of investigation procedures used by scientists

Question 3

Define hypothesis

Answer 3

Educated guess or testable prediction

Question 4

Define experiment

Answer 4

Organized procedure for testing hypothesis

Question 5

Define control

Answer 5

Standard for comparison

Question 6

Define constant

Answer 6

Factor that doesn’t vary in the experiment

Question 7

What is the independant variable?

Answer 7

Factor the is adjusted by the experimentor

x-axis

Question 8

What is the dependent variable?

Answer 8

Factor whose value depends on the independent variable

y-axis

Question 9

What are the steps that scientists often use to solve problems?

Answer 9

1. Ask a question
2. Research
3. Form Hypothesis
4. Design an experiment
5. Gather and analyze data
6. Conclusion
7. Share Results
8. Further Research

Question 10

What questions do scientists ask during the ask a question step of the scientific method?

Answer 10

Who, what when, where, why, how, which

Question 11

Why do scientists do research before forming their hypothesis?

Answer 11

1. To find the best way to do things

2. To ensure that you don’t make mistakes from the past

Question 12

What is the form of a good hypothesis?

Answer 12

If \_\_\_\_\_\_\_(I do this)\_\_\_\_\_\_ then \_\_\_\_\_\_(this) \_\_\_\_\_ will happen.
If INDEPENDENT VARIABLE then DEPENDENT VARIABLE.

Question 13

What is important about the design of an experiment?

Answer 13

1. It tests whether your prediction is accurate and your hypothesis is supported or not.
2. It needs to be fair, so only 1 factor can change at a time while keeping all other conditions the same.
3. You should repeat the experiment several times to make sure the first results weren’t an accident.

Question 14

What do you do during the gather and analyze step of the scientific method?

Answer 14

1. Collect measurements

2. Analyze measurements to see if they support your hypothesis

Question 15

What is in the conclusion of the scientific method?

Answer 15

States whether your data supported or rejected the hypothesis and rationalizes why.

Question 16

How do scientists share results?

Answer 16

1. Publish final report in a scientific journal
2. Present results on a poster
3. Present results during a talk at a scientific meeting

Question 17

Why would a scientist do further research?

Answer 17

1. Prediction was not accurate and hypothesis was not supported - they will construct a new prediction and hypothesis and start the scientific method over again
2. Even if hypothesis was supportd they may want to test again in a new way

Question 18

What are the steps in the scientific method?

Answer 18

1. Ask a question
2. Research
3. Form hypothesis
4. Design experiment
5. Gather and Analyze data
6. Conclusion
7. Share results
8. Further research

Question 19

What is scientific law?

Answer 19

Rule of nature that sums up related observations to describe a pattern in nature
Ex. Law of gravity

Question 20

What is scientific theory?

Answer 20

Explanation based on experiments - most logical explanation

Ex. Black hole theory