Unit 2

____________ is the study of everything and explains phenomena.

• Science

• Engineering

• Technology

• Hypothesis

___________ addresses human needs and applies scientific principles.

• Science

• Engineering

• Technology

• Hypothesis

Tags

NGSS.HS-ETS1-1

NGSS.HS-ETS1-2

The first step of the scientific method is to ask a question or make an observation.

What 5 steps follow this? (Make sure they are in the correct order)

• Experiment

• Conclusion

• Hypothesis

• Collect, organize, analyze data

• Research

How does sunlight affect plant growth?

In the above example, sunlight is the ​ (a)   and plant growth is the ​ (b)   .

• independent variable
• dependent variable

Tags

NGSS.HS-LS1-5

In an experiment, which variable is manipulated (changed)?

• Controlled variable

• Dependent variable

• Independent variable

• Control group

In an experiment, which variable is responding to the manipulation (change)?

• Controlled variable

• Dependent variable

• Independent variable

• Control group

Tags

NGSS.MS-PS1-2

In an experiment, which variable remains the same so it does not affect the results?

• Controlled variable

• Dependent variable

• Independent variable

• Control group

The group that gets the independent variable is called the​ (a)   .

The group that does NOT get the independent variable is called the​ (b)   .

• experimental group
• control group

A formal lab report closely follows the ____________________.

• law of conservation of mass

• scientific method

• neither

True or false:

It is okay to report that there is human error in your experiment.

• True

• False