Variables & Scientific Method

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

• dependent variable
• independent variable
• data
• control group

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Variables

If you increase the amount of spinach you eat, then you will increase the iron in your blood.

What's the dependent variable?

• increase the amount of iron in your blood

• spinach you eat

• you are

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Variables

If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?

• The school

• How fast you get to school

• Riding a bike or walking

• You are

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Variables

If the students study for my scientific method test, then they will have a better test score. What is the dependent variable?

• Scientific Method

• Studying

• The students

• Test score

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Variables

You will want your experiment to have ____ independent variable(s) in it for the experiment to be valid.

• 1

• 2

• 3

• As many as possible

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Variables

Which of these contains steps in the right order?

• Ask a question, form a hypothesis, research, plan and conduct an investigation, draw conclusions, report and share results, make a conclusion

• Form a hypothesis, ask a question, research, plan and conduct an investigation, draw conclusions, report and share results

• Observe and ask questions, form a hypothesis, plan and conduct an investigation, draw conclusions, report and share results

• Form a hypothesis, ask a question, research, report and share results, plan and conduct an investigation, draw conclusions

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Scientific Method

Jerry usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he is going to create an experiment to find out if there is something better. What is his dependent variable?

• type of tissue

• Kleenex tissue

• mass of snot that the tissue can hold

• amount of tissue

Tags

Variables

Jerry usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he is going to create an experiment to find out if there is something better. What is his control group?

• mass of snot that the tissue can hold

• Kleenex tissues

• type of tissue

• amount of tissue

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Variables

Jerry usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he is going to create an experiment to find out if there is something better. What is his independent variable?

• type of tissue

• Kleenex tissue

• mass of snot that the tissue can hold

• amount of tissue

Tags

Variables

What is the dependent variable?

• Things you keep the same- they do not change

• What you observe or measure

• What you decide to change in an experiment

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Variables