Midterm 1

Question 1

What is a major difference between experimentation and observation?

Answer 1

experimentation: manipulating a variable and seeing the outcome
outcome: no manipulation

Question 2

True or False: A hypothesis is broader than and often includes a theory.

Answer 2

False, a theory is broader than and often includes a hypothesis.

Question 3

Step 1 of the Scientific Method

Answer 3

Ask a question

Question 4

Step 2 of Scientific Method

Answer 4

Propose a hypothesis based on observation and knowledge

Question 5

Step 3 of Scientific Method

Answer 5

Design a procedure and make predictions

Question 6

Step 4 of Scientific Method

Answer 6

Collect data in nature or from a lab experiment

Question 7

Step 5 of Scientific Method

Answer 7

Analyze data and interpret results

Question 8

1. Ask a question

Answer 8

Do mice grow larger if given Vitamin C?

Question 9

Design a procedure and make predictions

Answer 9

There will be two groups of mice, one given Vitamin and one not. The mice given Vitamin C will grow larger.

Question 10

Collect data in nature or from a lab experiment

Answer 10

Writing down the weights of mice after the experiment proceeds for two weeks

Question 11

A scientific hypothesis should be:

Answer 11

testable and falsifiable

Question 12

Is it a scientific hypothesis?
Plants grow faster then there is music playing.

Answer 12

Yes

Question 13

Is it a scientific hypothesis?
Dogs are better than cats

Answer 13

No.

Question 14

Is it a scientific hypothesis?
If students get more than seven hours of sleep, then they will be more productive during the day.

Answer 14

Yes.

Question 15

What is a H0 (null hypothesis)?

Answer 15

hypothesis of no change or effect
i.e. the new medicine is no better than the old medicine.
developed by Ronald Fisher