Grades 3–5
Hypotheses and Variables
For three experiments, name what you change, what you measure and what stays the same, then write an if-then hypothesis.
Science worksheet · Scientific method
Science Experiment Recording Sheet
A lab sheet for any experiment: question, hypothesis, materials, steps, data, results and conclusion.
- Grade level
- Grades 2–5
- Time
- About 30 minutes
- Topic
- Scientific method
- Answer key
- Not needed: answers vary
- Kids practice
- The scientific method, Hypotheses, Fair tests
What kids do
Printed on the sheet:
- Hypothesis: I think
- Results: draw or graph what happened.
- My hypothesis was:
- Conclusion: what I learned
Words on this sheet
StepsDatacorrectnot correctpartly correct
Teacher tip
Keep a stack in the science center. It works for any experiment all year.
How to use it
- Run a quick class experiment first, like which paper towel soaks up the most, and fill in the sheet together.
- Post the steps of the scientific method on the wall.
- Let partners compare answers and settle any differences with a book or a video.
Watch for
A wrong hypothesis is not a failure. Scientists learn from it too.
Talk about it
- Was your prediction right? What did you learn either way?
- What question do you still have?
Take it further
Let kids design their own fair test and present it at a mini science fair.
US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.
More scientific method worksheets
Grades 2–5
Science Observation Journal
Look closely at one object: draw it as if under a magnifying glass, describe it and ask a question.
Grades 3–5
Observation or Inference?
Ten sentences to mark as an observation (what you notice) or an inference (what you figure out).
Grades 2–4
Steps of the Scientific Method
Number the seven steps of the scientific method in order, then match three words to their meanings.
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