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

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

What step does every scientific experiment begin with?

• hypothesis
• question/problem
• procedures
• conclusion

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

• conclusion
• procedures
• materials
• hypothesis

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

What are the materials in your scientific method? 

• your favorite markers and lucky eraser
• everything you will need to complete your experiment
• a hypothesis
• step by step directions to complete an experiment

The independent variable is the ONE thing you _____.

• change on purpose
• control or keep constant
• measure

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

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