How many variables should be tested at a time?

• Three
• Zero
• Two
• One

What is the first step in the scientific method?

• Make an observation --> Question
• Design and conduct an experiment
• Make an hypothesis
• Share your results

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

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

• dependent variable
• independent variable
• data
• control group

Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Which type of data involves descriptions that cannot be counted or measured?

• qualitative
• quantitative

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The summary at the end of an experiment that explains the results is... 

• conclusion
• procedures
• materials
• responding variable

A testable prediction about a scientific investigation is a(n)

• Question
• Observation
• Hypothesis
• Experiment

"The plant is pretty"
This observation is...

• Subjective
• Objective