Identifying Scientific Variables

In the question below, what is the independent variable? Question: Does adding dimples to car increase gas milage?

• regular car

• gas milage

• dimpled car

• the driver

Based on the last experiment, what part of the experiment is considered the the dependent variable?

• the regular car

• gas milage

• dimpled car

• the driver

In any experiment, the independent variable ______________.

• remains the same to not mess up the experiment

• is purposely changed to test the hypothesis

• is known by the scientist before doing the experiment

Suppose you are doing an experiment. How can you know that the data is reliable?

• perform the experiment one time

• the data from the experiment is coming out similar

• change the variable

HYPOTHESIS: Does study time affect the student's score on an test?

Use the table to answer questions 5 and 6.

Suppose you collected this data from students in your school. What is the independent variable in the study?

• The Students

• The Study Time

• The Grade on the Quiz

What part of the experiment changes as a result of the independent variable?

• The students

• The study time

• The grade on the quiz

Hypothesis: Does study time affect the student's score on an test?

In your opinion what part of the experiment is being controlled?

• The student responses

• The time students study

• The speed students answer questions

• The questions on the test

Which of the following is an example of quantitative data?

• Observing

• Measurements

• Descriptions

Tags

NGSS.MS-PS3-1

Another definition for hypothesis is

• independent variable

• dependent variable

• an educated guess

• control variable

Why is it important to use the internet after collecting data from the experiment?

• To observe

• To graph

• To experiment

• To research