Scientific method / The scientific method / Dedicated lab room

A pendulum beside a measurement notebook represents turning an observation into a testable scientific question. — A focused question connects an observable system with a measurable change, giving the investigation a clear starting point.

← RETURN TO LESSONLAB DOSSIER / GUIDED VIDEOENGLISH VOICEOVER · CAPTIONS

SCIENTIFIC METHOD · GRADES 5–12

Choose the next step in an investigation

INVESTIGATION QUESTIONWhat should a scientist do next when an observation raises a testable question?

● ILLUSTRATIVE SCIENCE MODEL

ENGLISH CAPTIONS

Notice a plant leaning toward a window and ask a testable question.

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01 / SCIENCE

What explains the result?

Scientific investigation is iterative: ask a focused question, plan a fair test, collect evidence, interpret it, and communicate or revise.

02 / EVERYDAY CONNECTION

Where does this matter?

A clear sequence helps teams investigate health, ecosystems, materials, and engineering problems without treating one result as proof.

03 / MODEL LIMIT

What should you keep in mind?

Scientists may revisit earlier steps; real investigations are not always a perfectly linear checklist.

Continue to the interactive experiment ↓

Repeated sample vessels and measurement equipment represent collecting consistent observations across trials. — Use a consistent setup and record every trial so the evidence shows both the pattern and its natural variation.

YOUR TASK

What should a scientist do next when an observation raises a testable question?

Choose the next step in an investigation: experiment-specific laboratory scene

READ THE BENCH CARD

Choose the next evidence-based step

Respond to the evidence at each checkpoint. The best next step depends on what the team already knows. Scientists may revisit earlier steps; real investigations are not always a perfectly linear checklist.

MATERIALS / DATAObservation card · Question and hypothesis cards · Evidence and revision cards

01Ask a testable question

02Research what is already known

03Write a prediction

04Plan and run a fair test

05Analyze the evidence

06Share the conclusion and revise

EVIDENCE CHECKPOINT 1 / 6 · WHAT NEXT?A plant near the window leans toward the light.

Select the next defensible action

WHAT TO TAKE AWAY

Scientific investigation is iterative: ask a focused question, plan a fair test, collect evidence, interpret it, and communicate or revise.

WHERE THIS IS USED

A clear sequence helps teams investigate health, ecosystems, materials, and engineering problems without treating one result as proof.

MODEL LIMIT Scientists may revisit earlier steps; real investigations are not always a perfectly linear checklist. The activities on this page do not store classroom measurements.

A plotted data pattern and circular arrows show how evidence can revise a scientific explanation and prompt a new question. — Interpret the observed pattern, revise an explanation when needed, and use remaining uncertainty to plan what to investigate next.