Intro to Science

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. Hint: It is used to create a baseline.

• experimental group

• control group

• data group

• constant variables

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Which of the following is NOT a testable question?

• How do rockets work?

• Does fertilizer help plants grow bigger?

• Does heart rate increase with exercise?

• Does the freezing point of water change at different elevations?

An observation that is measurable and collected using tools (such as a ruler or scale) is what type of data?

• quantitative

• qualitative

• Can be both

Experiment: Does changing the wing shape to make it more narrow affect the distance a paper airplane will fly?

The wing shape is the ___________ variable.

• independent

• dependent

Tags

NGSS.MS-PS2-2

Which of the following is not a goal of science?

• Provide natural explanations for events in the natural world

• Use explanations to understand patterns in nature

• Make useful predictions about natural events

• Better understand and predict patterns in supernatural conditions

The factors in an experiment that can be changed. 

• variables
• quantitative data
• hypothesis
• steps

Tags

NGSS.MS-PS2-2

A hypothesis can either be in the form of a statement or question.

• True

• False