Inquiry Begins Safely

This is lesson 1 of 10 in the unit "Manitoba Science Year Overview". Lesson Title: Inquiry, Safety, and Science Lesson Description: Weeks 1–2; approximately 4 lessons. Essential questions: How do scientists investigate responsibly? How can evidence improve a decision? Key concepts: observations, questions, predictions, variables, fair tests, measurement, evidence, models, safety, and respectful collaboration. Manitoba alignment: Grades 5–8 science inquiry skills and attitudes across all topics; Grade 5–8 expectations involving planning investigations, recording observations, communicating results, and applying safety procedures. Investigation: conduct a schoolyard or community “mystery object” inquiry; design a fair test of soil absorption, insulation, or seed growth. Vocabulary: observe, infer, predict, variable, control, evidence, data, accuracy, procedure, hazard, conclusion. Formative assessment: safety scenario cards, science notebook checks, questioning, and a claim-evidence-reasoning exit ticket. Summative assessment: individual investigation report and short safety demonstration. Success criteria: I can identify hazards, follow a procedure, collect organized data, distinguish observations from inferences, and support a conclusion with evidence. EAL and diverse-learner supports: illustrated safety cards, bilingual word banks, modeled procedures, oral or recorded explanations, flexible groups, adapted measuring tools, and explicit roles. Extension: test reliability by repeating trials, graph uncertainty, or redesign the investigation for a rural context. Local connections include farm, lake, forest, weather, water-quality, and machinery-safety examples. Supplementary literacy links: interpreting procedures and technical information support CCSS.ELA-LITERACY.RST.6-8.3 and RST.6-8.7; Manitoba curriculum remains primary.

Overview

In this first lesson of a 10-lesson science inquiry unit, students learn how scientists observe carefully, ask testable questions, identify hazards, and use evidence responsibly. Students investigate a mystery object and begin planning a fair test connected to local contexts such as soil, water, weather, crops, or insulation.

Learning intentions

Students will be able to:

Distinguish observations from inferences.
Identify hazards and explain how to reduce risk.
Develop a testable question, prediction, and simple procedure.
Identify variables and describe how evidence supports a conclusion.
Work respectfully in assigned investigation roles.

Success criteria

I can identify at least two hazards and describe a safe response.
I can record observations without adding guesses.
I can identify what will change, what will be measured, and what will stay the same.
I can support a conclusion with recorded evidence.

Curriculum links

Planning and carrying out investigations using observations, questions, predictions, variables, measurement, and fair tests.
Recording, organizing, analyzing, and communicating data and conclusions.
Applying safety procedures and demonstrating responsible, respectful collaboration.
Reading technical information and following multi-step procedures.
Writing explanatory responses that use evidence and clearly connect claims to reasons.

Lesson structure (60 minutes)

0–7 minutes — Hook: What can we know? Display a covered or closed mystery object, such as a pinecone, farm tool part, stone, seed pod, or safe household item. Open with the mystery-object hook slide and ask students to write three observations and one inference in their notebooks. Emphasize that an observation can be seen, heard, felt, or measured; an inference is an explanation or guess.
7–17 minutes — Model scientific thinking and safety Use the observation-versus-inference and safety slides to model statements such as “The object is rough” versus “The object came from a tree.” Students turn and talk to classify statements. Present three local safety situations: an unknown liquid near a shed, a wet floor near electrical equipment, and machinery operating nearby. Students identify the hazard, possible harm, and safe action. Record ideas on the board.
17–27 minutes — Safety scenario check Distribute the safety and inquiry worksheet. In pairs, students complete the safety scenarios and explain why each response is responsible. Review answers quickly, asking students to justify their choices. Reinforce core expectations: follow instructions, use tools correctly, report spills or injuries, never taste or touch unknown materials, and stop when a procedure becomes unsafe.
27–37 minutes — Mystery-object inquiry Place students in five groups of five, using roles such as facilitator, recorder, materials manager, safety monitor, and reporter. Give each group a safe mystery object or photograph. Groups record at least five direct observations, two questions, and one prediction. They then share one observation and one inference, while classmates respectfully challenge guesses by asking, “What evidence supports that?”
37–50 minutes — Plan a fair test Explain that groups will later conduct one investigation: soil absorption, insulation, or seed growth. Use the fair-test planning slides to introduce:

Independent variable: what is deliberately changed.
Dependent variable: what is measured or observed.
Controlled variables: what stays the same.

Groups begin the Natural Resources Inquiry Organiser by writing a focus question, prediction, materials, safety concerns, procedure, and planned data. Suggested questions include: “Which soil absorbs the most water?” “Which material keeps water warmest?” or “How does the amount of water affect seed growth?” Groups must choose measurable outcomes and identify at least two controls.

50–56 minutes — Share and improve plans Each group gives a 30-second report of its question, variable, measurement, and one safety precaution. Classmates offer one “strength” and one “question.” The teacher checks whether the proposed tests are fair, safe, and possible with available materials. Groups revise one part of their plan.
56–60 minutes — Claim-evidence-reasoning exit ticket Revisit the reflection and exit-ticket slide. Students complete the final section of the safety and inquiry worksheet: make a claim about what makes an investigation responsible, give one piece of evidence from today, and explain how the evidence supports the claim. Collect notebooks, organisers, and exit tickets.

Resources

the inquiry, safety, and fair-test slide deck
the safety and inquiry worksheet
the Natural Resources Inquiry Organiser
Five safe mystery objects or photographs
Science notebooks, pencils, and clipboards
Measuring cups, rulers, thermometers, timers, or balance scales, as available
Sample soil, insulation materials, or seeds for later lessons
Board or chart paper and markers
Safety equipment appropriate to planned investigations

Assessment

Listen for accurate distinctions between observations and inferences during partner and group talk.
Check safety scenario responses, notebook entries, and inquiry organisers for hazards, variables, controls, and measurable data.
Use the exit ticket to assess whether students can make a claim and connect it to evidence and reasoning.

Differentiation

Provide illustrated safety cards, a bilingual word bank, sentence frames, and modeled examples: “I observe ___,” “I infer ___,” and “Our evidence shows ___.”
Allow oral, recorded, drawn, or written responses. Pair EAL students with supportive language partners and preteach observe, infer, variable, control, evidence, data, hazard, and conclusion.
Assign explicit roles, use flexible groups, provide adapted measuring tools, and offer a partially completed procedure for students needing additional support.
Challenge advanced students to propose repeated trials, predict sources of uncertainty, compare two possible fair tests, or redesign the investigation for a rural farm, lake, forest, or machinery-safety context.