Scientific Method

Question 0

Define a variable.

Answer 0

Variable: Any condition that changes or varies the outcome of a scientific experiment

Question 1

List the steps to performing a scientific investigation in order.

Answer 1

1. Purpose
2. Hypothesis
3. Procedure
4. Materials
5. Hypothesis
6. Analysis
7. Conclusion

Question 2

Define a independent variable.

Answer 2

Independent Variable: A variable that is changed by the investigator

Question 3

Define a dependent variable.

Answer 3

Dependent Variable: A variable that changes in response to the in independent variable

Question 4

Define a controlled experiment.

Answer 4

Controlled experiment: An experiment in which the independent variable is purposely changed to find out what change, if any, occurs in the dependent variable

Question 5

Define an observational study.

Answer 5

Observational Study: The careful watching, recording, of a subject or phenomenon to gather scientific information to answer a question

Question 6

What branch of science is mostly observational study?

Answer 6

Astronomy

Question 7

What is a hypothesis?

Answer 7

Hypothesis: A possible answer or untested explanation that relates to the initial question in an experiment (an educated guess)

Question 8

What is a prediction?

Answer 8

Prediction: A statement that predicts the outcome of a controlled experiment

Question 9

What is the difference between a hypothesis and a prediction?

Answer 9

A hypothesis is an educated guess that is based on background information while a prediction is just a guess on the outcome of an experiment

Question 10

What are the parts of the scientific method in the experimental design in order?

Answer 10

1. Procedure

2. Materials

Question 11

What are the skill important in a scientific investigation?

Answer 11

1. Initiating an planning
2. Performing and recording
3. Analyzing and evaluating
4. Communicating

Question 12

What must be done before an experiment can be shared with the public? What is the name and purpose of the process?

Answer 12

The experiment must be reviewed with other scientists in a process called peer review. The purpose is to check if the experiment data is valid and the science is correct.

Question 13

What does WHMIS stand for in safety symbols?

Answer 13

Workplace Hazardous Materials Information System

Question 14

What does HHPS stand for in safety symbols?

Answer 14

Hazardous household Product Symbols

Question 15

What is the shape of WHMIS symbols?

Answer 15

Circular