Scientific Method, Variables, & Graphing

Why do scientists use the scientific method?

• To be complicated for no reason and seem smart

• To make sure that only they get the credit for their findings

• So that other scientists and academics don't get mad at them

• To ensure their results are as valid as possible and allow other scientists to recreate their work

Tags

NGSS.MS-LS1-5

True or false: your hypothesis is always right and can never be wrong?

• True

• False

Tags

NGSS.MS-LS2-4

What part of the scientific method is the following sentence: "If I wear my mask correctly, then I reduce the chance of getting other people sick."

• Obervation

• Hypothesis

• Experiment

• Conclusion

What step is USUALLY the first step in the scientific method

• Questioning/Observing a Problem

• Hypothesis/educated guess

• Gathering data/evidence

• Discussing results/forming conclusions

At the end of the experiment, scientists usually discuss implications of their research findings, future projects, or the implications. This step is called what?

• Conclusion

• Experimentation

• Hypothesis

• Observing

What is a hypothesis?

• an educated guess stating what you believe will be the result of your experiement
• a random guess
• a statement of the outcome of your experiment
• step by step directions for your experiment

The independent variable is the ONE thing you _____.

• change on purpose
• control or keep constant
• measure

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect 

• independent variable
• dependent variable
• control variable

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more
• To know what is causing the changes. This helps us understand cause and effect.
• It is what has always been done

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. What variables should be kept constant/controlled? 

• type of plant, flower pot,  soil, and amount of sunlight
• water, apple juice, milk
• only the amount of sunlight
• type of plant only