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Grade 5 Scientific Method & Variables Worksheet with Answers

Grade 5 (US) · Year 6 (UK) · Class 5 (India) · Science

Unit 7: Going FurtherAdvanced: Middle School PreviewAdvanced

Hypotheses, independent, dependent and controlled variables, and fair tests. This free upper elementary 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 5 · Science

Score___ / 12

Name

Class

Date

Learning goal: Advanced: Middle School Preview

Directions: Read each question carefully. Circle the correct choice or write your answer on the line.

Example

What are the things you keep the same called?

Answer: controlled variables (constants)

RememberThe scientific method

QuestionHypothesisa testable guessExperimenttest one changeDataobserve & recordConclusionwas I right?
  1. 1

    Why do scientists repeat an experiment several times?

  2. 2

    Experiment: Does the amount of sunlight change plant height? What is the dependent variable?

  3. 3

    'The grass is wet.'

    ObservationInference
  4. 4

    Experiment: Does water temperature change how fast sugar dissolves? Name a controlled variable.

  5. 5

    'It must have rained last night.'

    ObservationInference
  6. 6

    Why is a large sample size better?

  7. 7

    What is the variable you change on purpose called?

  8. 8

    What is the variable you measure called?

  9. 9

    Experiment: Does the amount of sunlight change plant height? What is the independent variable?

  10. 10

    What is a control group?

  11. 11

    A student tests two fertilizers but uses different plants and pots. What is wrong?

  12. 12

    What should you do if your data does not support your hypothesis?

★ Challenge corner for fast finishers

I can't be seen, but without me a fire goes out. What am I?

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/science/5/sci_method

Answer key (click to show)
  1. 1.to make sure results are reliable
  2. 2.plant height
  3. 3.observation
  4. 4.amount of water, amount of sugar or stirring (any one)
  5. 5.inference
  6. 6.it reduces the effect of chance and makes results more reliable
  7. 7.the independent variable
  8. 8.the dependent variable
  9. 9.the amount of sunlight
  10. 10.a group that does not get the treatment, used for comparison
  11. 11.more than one variable changed, so results can't be compared
  12. 12.report it honestly and revise the hypothesis
  13. ★oxygen (challenge corner)

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How to use this worksheet

  • Use it as a 10–15 minute warm-up or homework task rather than a long drill.
  • Ask students to show their working so you can see where a mistake started, not just that it happened.
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Guides for teaching Scientific Method & Variables

The Scientific Method for Kids: Independent, Dependent and Controlled VariablesWhat makes a test fair, how to spot each kind of variable, and a paper-towel experiment you can run at home or in class tomorrow.Moon Phases Explained: Why the Moon Changes ShapeThe moon never stops being lit — we just see different amounts of its sunlit half. The eight phases, a lamp-and-ball demo, and the misconception almost everyone has.What Are the Common Core and NGSS Standards? A Parent's GuideWhat learning standards are, how to read a code like 3.NF.A.1 or MS-PS1-2, what each grade covers in Math, English and Science, and how to use them at home.

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