Scientific method

What is the first step in the scientific method?

• draw conclusions

• ask a question/make an observation

• make a hypothesis

• test the experiment

Performing a test or experiment allows you to test your ___________.

• draw conclusions

• hypothesis

• senses

• battery

Should experiments be repeated over and over to see if the results are the same each time?

• yes
• no

Which of these contains steps in the right order?

• Ask a question, state your hypothesis, research, experiment, analyze, make a conclusion
• State your hypothesis, ask a question, research, experiment, analyze, make a conclusion
• Ask a question, research, state your hypothesis, experiment, analyze, make a conclusion
• State your hypothesis, ask a question, research, make a conclusion, experiment, analyze

The graph below shows atmospheric carbon dioxide levels since the year 1880.Which of the following conclusions can be drawn from this graph

•  Atmospheric carbon dioxide levels are responsible for global temperature change.
•  Atmospheric carbon dioxide levels have been rising at about the same rate for the past century.
• Atmospheric carbon dioxide levels have remained the same over the past century.
•  Atmospheric carbon dioxide levels have been rising at an increasingly higher rate as the past century has progressed.

Tags

NGSS.MS-ESS3-5

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

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

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

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.3-5-ETS1-3