Grade 6 Scientific Method & Variables Worksheet with Answers
Grade 6 (US) · Year 7 (UK) · Class 6 (India) · Science
Unit 1: Thinking Like a ScientistThe Scientific Method
Hypotheses, independent, dependent and controlled variables, and fair tests. This free middle school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.
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The Scientific Method & Variables
Grade 6 · Science
Name
Class
Date
Learning goal: The Scientific Method
Directions: Read each question carefully. Circle the correct choice or write your answer on the line.
What is a hypothesis?
Answer: a testable prediction or explanation
RememberThe scientific method
- 1
What is a control group?
- 2
What is the first step of the scientific method?
- 3
Experiment: Does water temperature change how fast sugar dissolves? Name a controlled variable.
- 4
Experiment: Does the amount of sunlight change plant height? What is the dependent variable?
- 5
'The grass is wet.'
ObservationInference - 6
'It must have rained last night.'
ObservationInference - 7
What should you do if your data does not support your hypothesis?
- 8
Why do scientists repeat an experiment several times?
- 9
Why is a large sample size better?
- 10
Experiment: Does the amount of sunlight change plant height? What is the independent variable?
- 11
Which graph best shows how temperature changes over a day: bar or line?
- 12
A student tests two fertilizers but uses different plants and pots. What is wrong?
★ Challenge corner for fast finishers
If Earth stopped spinning, how long would one day (sunrise to sunrise) be?
How did I do?
Teacher's comments
Free printable worksheets with answer keys · aethelsystems.com/worksheets/science/6/sci_method
Answer key — The Scientific Method & Variables (Grade 6)
- 1.a group that does not get the treatment, used for comparison
- 2.ask a question (make an observation)
- 3.amount of water, amount of sugar or stirring (any one)
- 4.plant height
- 5.observation
- 6.inference
- 7.report it honestly and revise the hypothesis
- 8.to make sure results are reliable
- 9.it reduces the effect of chance and makes results more reliable
- 10.the amount of sunlight
- 11.line graph
- 12.more than one variable changed, so results can't be compared
- ★about one year
Answer key (click to show)
- 1.a group that does not get the treatment, used for comparison
- 2.ask a question (make an observation)
- 3.amount of water, amount of sugar or stirring (any one)
- 4.plant height
- 5.observation
- 6.inference
- 7.report it honestly and revise the hypothesis
- 8.to make sure results are reliable
- 9.it reduces the effect of chance and makes results more reliable
- 10.the amount of sunlight
- 11.line graph
- 12.more than one variable changed, so results can't be compared
- ★about one year (challenge corner)
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