The Scientific Method Worksheet + Answer Key
$12
Teach the scientific method the way scientists actually use it! This 11-page worksheet takes students from asking a question to designing their own experiment, analyzing real data and writing evidence-based conclusions. Every example uses real-world chemistry. Just print and teach.
What’s inside:
✔ Reference page: a colorful 7-step flowchart, plus clear summaries of variables, control groups, hypotheses, observations vs. inferences, and theories vs. laws
✔ Vocabulary matching: 10 key terms
✔ Steps of the scientific method: put a student’s investigation in order and name each step
✔ Observations and inferences: qualitative vs. quantitative, and observation vs. inference
✔ Identifying variables: 6 chemistry experiments (independent, dependent and controlled variables, and control groups)
✔ Writing hypotheses: testable vs. not testable, and “If… then… because…” practice
✔ Design your own experiment: question, hypothesis, variables, procedure, data table and safety
✔ Data analysis and graphing: calculate averages, graph real data, interpolate, extrapolate and write a conclusion
✔ Find the flaw: spot the mistakes in 4 poorly designed experiments
✔ Theories, laws and conclusions: why scientists say “supported,” not “proved”
✔ CER question: analyze reaction data and build a scientific argument
✔ Complete answer key with sample answers
Perfect for:
The first weeks of Chemistry, Physical Science or General Science
Homework, classwork, review, sub plans or tutoring
Homeschool science
Middle school (Grades 7–8) and high school (Grades 9–12)
Why teachers love it:
No prep: print and go
Clear layouts with plenty of space for student work
Builds the NGSS science practices: planning investigations, analyzing data and arguing from evidence
Created by a chemistry expert: ChemDecoded resources are written by an M.S. Chemistry graduate and former high school chemistry teacher with more than 5 years of online tutoring experience and a 4.9/5 rating.
📄 Instant digital download: 1 PDF, 47 questions, 11 pages including the answer key.