Scientific Method

What is the first step in the scientific method?

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

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

• Question
• Observation
• Hypothesis
• Experiment

Tags

NGSS.MS-PS2-2

Susan said, “If I fertilize my geranium plants, then they will have more flowers.”

• recognize a problem

• test the hypothesis with an experiment

• form a hypothesis

• draw conclusions

Tags

NGSS.MS-LS1-5

Stephen predicted that seeds would start to grow faster if an electric current traveled through the soil in which they were planted. What would be the manipulated variable for his experiment?

• faster growth

• the electrical current

• the type of plant

• amount of water

Tags

NGSS.MS-LS1-5

How many independent variables should you have in an experiment?

• two

• as many as possible

• four

• one

Tags

NGSS.MS-PS2-2

What is an independent variable?

• What a scientist changes in an experiment to test their hypothesis

• What scientist measure to see if it responded to a change

• What happens when you do an experiment

• What you keep the same throughout all experimental groups

Tags

NGSS.MS-PS2-2

What is a control or constant variable?

• What a scientist changes in an experiment to test their hypothesis.

• What a scientist measures to see if it responded to a change.

• What happens when you do an experiment.

• What you keep the same throughout all experimental groups.

At what temperature did bread mold the slowest? Click on the picture to make it bigger.

• 20

• 40

• 60

• 80

Tags

NGSS.MS-PS3-4

The name of the information that you get from your experiment (you organize it into charts and graphs). Click on the picture to make it bigger.

• observations

• data

• hypothesis

Tags

NGSS.MS-PS3-1

An experiment has 10 plants growing in sunlight and 10 plants growing in red light.  The plant height is measured after one month. What is the dependent variable in this experiment? 

• The red light
• The sunlight
• The plant height

Tags

NGSS.MS-LS1-5