Scientific Method

Why do scientists use the scientific method?

• To make sure they get credit for their discoveries.

• To make sure their results are valid and can be performed by other scientists.

• So that other scientist don't get mad at them

• Because their 6th grade science teacher told them to.

True or False: Your hypothesis can never be wrong.

• True
• False

If plants are exposed to sunlight, then they will grow taller.

What part of the scientific method is this an example of?

• Procedure

• Hypothesis

• Question

• Results

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

• conclusion

• procedures

• materials

• hypothesis

What is a hypothesis?

• An educated guess stating what you believe will be the result of your experiment

• A random guess

• A statement of the outcome of your experiment

• Step by step directions for your experiment

What are the procedures step in the experiment?

• The conclusion to your experiment

• The materials needed to complete experiment

• Step by step directions of how to complete your experiment

• An educated, best guess

The manipulated variable is the ONE thing you _____.

• change on purpose

• control or keep constant

• measure

The variable that is being measured or observed is called the _______________.

• manipulated variable

• responding variable

• controlled variable

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

What is a constant/control in an experiment?

• Things that do not change in an experiment. It's the variable that stays the same. You can have many variables stay the same.

• It's the variables that the scientist changes in the experiment.

• It's the variables that are being measured in an experiment.