8 Grade Pre/Post Scientific Method

What is the first step in the scientific method?

• Conducting an experiment

• Formulating a hypothesis

• Identifying a problem or question

• Analyzing data

Which of the following is considered a variable in an experiment?

• The conclusion

• The hypothesis

• The factor that is changed or controlled

• The control group

Tags

NGSS.MS-PS2-2

What is the purpose of a control group in an experiment?

• To test multiple hypotheses

• To serve as a comparison to the experimental group

• To ensure all variables are changed

• To speed up the experiment process

How can a hypothesis be described?

• A proven fact

• A detailed procedure

• An educated guess or prediction

• A summary of the experiment results

During which step of the scientific method are observations and data recorded?

• Hypothesis

• Experimentation

• Conclusion

• Analysis

Tags

NGSS.MS-PS2-2

Which of the following best describes a dependent variable?

• A variable that is kept constant

• A variable that is deliberately changed

• A variable that responds to changes

• A variable that is not measured

Tags

NGSS.MS-PS2-2

If a scientist repeats an experiment and gets different results, what should they do next?

• Ignore the results

• Conclude the experiment

• Investigate possible errors

• Change the original hypothesis

Tags

NGSS.MS-PS2-5

9. What is a scientific theory?

• A proven hypothesis

• A broad explanation based on evidence

• An initial observation

• A conclusion from a single experiment

Which of the following statements IS NOT true.

• The Horned Grebe had the highest population in 2012.

• The Common Merganser, California Quail, Horned Grebe, and Cinnamon Teal had population increase from 2010 to 2011.

• Both the Horned Grebe and Common Merganser's population decreased from 2013-2014.

• The black-crowned Night-Heron's population decreased from 2013 to 2014.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following statements IS TRUE based on data from the graph.

• The common Merganser had the biggest population in 2014.

• The Cinnamon Teal makes the smallest percentage of the bird population from 2010 to 2014.

• The Horned Grebe always makes the biggest percentage of the bird population.

• In 2010 the Black-crowned Night-Heron makes up almost 75% of the bird population.

Tags

NGSS.MS-LS2-1