Planning Simple Scientific InvestigationsActivities & Teaching Strategies
Active learning lets Year 1 students practice the real work of scientists by planning investigations themselves. When children arrange ramps, measure shadows, or test bubbles, they see how clear questions and fair steps lead to trustworthy answers. Hand-on tasks turn abstract concepts like sequencing and materials into concrete, memorable skills.
Learning Objectives
- 1Identify the necessary materials for a simple scientific investigation.
- 2Design a step-by-step procedure to test a scientific question.
- 3Analyze the order of steps in a given investigation plan.
- 4Explain why certain steps are placed before others in a plan.
Want a complete lesson plan with these objectives? Generate a Mission →
Pairs: Toy Car Ramp Plan
Pairs pose a question about car speed on surfaces like carpet or tile. They list materials including toy cars, rulers, and timers, then sequence five clear steps with drawings. Pairs test one step and refine their plan based on results before sharing.
Prepare & details
Analyze the steps needed to answer a scientific question.
Facilitation Tip: During the Toy Car Ramp Plan, have each pair place their activity cards in order on the table, then explain their sequence to another pair before testing.
Setup: Groups at tables with problem materials
Materials: Problem packet, Role cards (facilitator, recorder, timekeeper, reporter), Problem-solving protocol sheet, Solution evaluation rubric
Small Groups: Shadow Length Investigation
Groups identify a question on how light distance changes shadows. They gather flashlights, objects, and measuring tapes, outline procedures like positioning light at varying heights, and mark repeat trials. Groups present plans and vote on clearest sequences.
Prepare & details
Design a simple plan to test how different surfaces affect a toy car's speed.
Facilitation Tip: When running the Shadow Length Investigation, ask each group to predict where the shadow will fall before they measure, then compare predictions with results.
Setup: Groups at tables with problem materials
Materials: Problem packet, Role cards (facilitator, recorder, timekeeper, reporter), Problem-solving protocol sheet, Solution evaluation rubric
Whole Class: Plant Water Needs Plan
As a class, brainstorm a question on watering plants. List shared materials like pots, soil, seeds, and measuring cups on the board. Co-create numbered steps, discuss fairness, then assign roles to execute a trial run.
Prepare & details
Justify the order of steps in an investigation plan.
Facilitation Tip: For the Plant Water Needs Plan, provide pre-cut sentence strips so students physically arrange ‘question,’ ‘materials,’ and ‘steps’ before writing their full plan.
Setup: Groups at tables with problem materials
Materials: Problem packet, Role cards (facilitator, recorder, timekeeper, reporter), Problem-solving protocol sheet, Solution evaluation rubric
Individual: Bubble Mix Test Design
Each student writes a question about bubble solution strength. They note materials like dish soap, water, and straws, then list ordered steps for mixing and blowing tests. Students swap plans for peer feedback before a demo.
Prepare & details
Analyze the steps needed to answer a scientific question.
Facilitation Tip: During the Bubble Mix Test Design, give every child a planning template with icons so they focus on one idea per box rather than rushing to write paragraphs.
Setup: Groups at tables with problem materials
Materials: Problem packet, Role cards (facilitator, recorder, timekeeper, reporter), Problem-solving protocol sheet, Solution evaluation rubric
Teaching This Topic
Start with one short whole-class activity so students experience the entire cycle of question, plan, and trial together. Avoid letting students jump straight to the fun part; insist on a written plan before touching materials to build the habit of forethought. Research shows that first-hand repetition of simple investigations strengthens procedural memory more than worksheets alone.
What to Expect
Students will show they can turn a curiosity into a step-by-step plan with a clear question, a list of materials, and at least two trials. Successful learning looks like pairs explaining why they chose a ramp height before testing, groups justifying their order of steps for measuring shadows, and individuals drawing or writing a fair procedure to compare bubble mixes.
These activities are a starting point. A full mission is the experience.
- Complete facilitation script with teacher dialogue
- Printable student materials, ready for class
- Differentiation strategies for every learner
Watch Out for These Misconceptions
Common MisconceptionDuring the Toy Car Ramp Plan, watch for students who stack ramps without measuring or timing. Redirect by asking, ‘What step tells us how fast the car goes?’ and have them add a timer card and a speed sentence to their plan.
What to Teach Instead
During the Shadow Length Investigation, some students may measure the shadow before marking the time of day. Stop the group and ask, ‘When did you measure? How will you keep the time the same for the next shadow?’
Common MisconceptionDuring the Plant Water Needs Plan, listen for students who say, ‘We just need water.’ Hold up two pictures of plants and ask, ‘How much water? Same amount or different?’ to push them to specify quantities in their list.
What to Teach Instead
During the Bubble Mix Test Design, if students write, ‘Test the mix,’ ask, ‘Which mix first? How many tries for each?’ until they name at least two trials per mix.
Common MisconceptionDuring any activity, watch for students who think one trial is enough. Pause and say, ‘Try it once, then try it again the same way. Did the car go the same speed both times?’ to make variability visible.
What to Teach Instead
After the Toy Car Ramp Plan, have pairs compare their fastest times on the same surface and ask why the numbers differ before moving on.
Assessment Ideas
After the Plant Water Needs Plan, give each student a half-sheet with two blank lines: ‘I wonder if plants grow better with _______ water or _______ water.’ Ask them to list one material and two steps they would use. Collect to check for question focus, materials, and sequencing.
During the Toy Car Ramp Plan, bring the class back together after 10 minutes and ask, ‘What is the very first step your pair did? Why did you do that before anything else?’ Listen for mentions of question, safety, or fairness to assess understanding of logical sequencing.
After the Bubble Mix Test Design, hand out sticky notes with a smiley-face timer icon. Ask students to draw one step they would do first to test two bubble mixes fairly. Collect tickets to see if they depict a clear, repeatable action.
Extensions & Scaffolding
- Challenge pairs to test a fourth surface with the toy car ramp and explain how they know their result is reliable.
- Scaffolding: Provide picture cards for steps and have students sequence them with a peer before writing.
- Deeper: Let students choose their own question about shadows or bubbles and plan their own investigation after modeling the structure.
Key Vocabulary
| Investigation | A careful study or examination to discover facts or principles. |
| Procedure | A series of actions or steps taken in a specific order to complete a task or conduct an investigation. |
| Materials | The items or equipment needed to carry out a scientific investigation. |
| Fair Test | An investigation where only one variable is changed at a time, so that the results are reliable. |
Suggested Methodologies
Planning templates for Science
5E Model
The 5E Model structures lessons through five phases (Engage, Explore, Explain, Elaborate, and Evaluate), guiding students from curiosity to deep understanding through inquiry-based learning.
Unit PlannerThematic Unit
Organize a multi-week unit around a central theme or essential question that cuts across topics, texts, and disciplines, helping students see connections and build deeper understanding.
RubricSingle-Point Rubric
Build a single-point rubric that defines only the "meets standard" level, leaving space for teachers to document what exceeded and what fell short. Simple to create, easy for students to understand.
More in The Junior Scientist: Inquiry Skills
From Curiosity to Scientific Questions
Students will practice turning their observations and curiosities into testable scientific questions, distinguishing them from general wonderings.
3 methodologies
Making Informed Predictions (Hypotheses)
Students will learn to make informed predictions (hypotheses) before conducting an experiment, justifying their reasoning based on prior knowledge.
3 methodologies
The Importance of Fair Tests
Students will understand why it's crucial to change only one variable at a time in an experiment to ensure fair and reliable results.
3 methodologies
Collecting and Recording Observations
Students will practice observing carefully and recording their findings using drawings, simple notes, and tally marks.
3 methodologies
Organizing Data with Tables and Charts
Students will learn to organize their data into simple tables and charts (e.g., pictographs, bar charts) to make it easier to understand and interpret.
3 methodologies
Ready to teach Planning Simple Scientific Investigations?
Generate a full mission with everything you need
Generate a Mission