Scientific Method (independent practice)

How many steps are in the scientific method?

• 5

• 8

• 6

• 7

What is the final step in the scientific method?

• Write a conclusion about your results

• Record and analyze the data

• Form a hypothesis

• Research your topic

Which is a good example of a hypothesis for the following scientific question, "Does playing violent video games lead to higher blood pressure?"

• Playing violent video games gives people higher blood pressure.

• If you have higher blood pressure, then you play violent video games.

• If you play violent video games you will have higher blood pressure.

• If you play violent video games, then you will have higher blood pressure.

Why is the following considered a bad hypothesis? "If your plants grew taller, then they were given fertilizer."

• It doesn't have "if" and "then"

• The prediction is wrong

• The independent and dependent variable are in the wrong order

• This is a good hypothesis

Jennifer wants to know if students do better on their homework if they listen to classical music or hip hop music. What is the independent variable in this experiment?

• Students' grades on homework

• The age of the students

• The volume of the music

• The type of music

What is a procedure?

• Step by step instructions

• Safety rules

• What stays the same in an experiment

• A prediction

What is the main reason scientists have constants?

• So scientists know their results came only from the independent variable and nothing else

• So scientists stay safe

• So scientists can record data easier

• So the experiment is clear and easy to understand

In a controlled experiment, how many variables can be worked with at a time? 

• one
• none
• two or more
• how ever many makes sense.

Tags

NGSS.MS-PS3-4

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

Tags

NGSS.MS-PS2-2

NGSS.MS-ETS1-4

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

• conclusion
• procedures
• materials
• responding variable