Science · Year 7

Active learning ideas

Safety in the Science Laboratory

Active learning builds lasting safety habits by letting students experience risks personally rather than passively receiving rules. Hands-on sorting, auditing, and role-playing make abstract symbols and procedures concrete, so students connect meaning to real consequences.

• National Curriculum Attainment Targets
• National Curriculum in England: Science KS3, Biology, Structure and function of living organisms: cells as the fundamental unit of living organisms
• National Curriculum in England: Science KS3, Biology: Identifying the life processes common to living things through the study of major organ systems
• National Curriculum in England: Science KS3, Biology, Structure and function of living organisms: Health, understanding the effects of lifestyle on life processes

• 25–40 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Role Play
• 25 min · Pairs

Card Sort: Hazard Symbols Match

Provide cards with symbols, names, and precautions. In pairs, students match them within 10 minutes, then share one example with the class. Follow with a quick quiz to check understanding.

Explain the importance of safety symbols and precautions in a science laboratory.

Facilitation Tip

For Card Sort: Hazard Symbols Match, circulate with targeted questions like 'Why does this symbol have a flame and a circle?' to push thinking beyond memorization.

What to look for

Present students with images of common lab equipment (e.g., Bunsen burner, beaker, test tube rack) and ask them to write down one potential hazard associated with each and the corresponding safety precaution they would take.

• Apply
• Analyze
• Evaluate
• Social Awareness
• Self-Awareness

Activity 02

• Role Play
• 35 min · Small Groups

Hazard Hunt: Lab Setup Audit

Display photos or real setups with hidden risks like loose cables or missing labels. Small groups list hazards and suggest fixes on worksheets, then present to the class for peer feedback.

Analyze potential hazards in a given experimental setup.

Facilitation Tip

During Hazard Hunt: Lab Setup Audit, assign each group one area (e.g., Bunsen burner station, chemical shelf) to focus their risk-spotting.

What to look for

Give each student a card with a scenario, such as 'You need to heat water in a beaker using a Bunsen burner.' Ask them to list three essential safety steps they would follow before and during this activity.

• Apply
• Analyze
• Evaluate
• Social Awareness
• Self-Awareness

Activity 03

• Role Play
• 40 min · Small Groups

Role-Play: Safe Procedure Design

Groups design and act out a safe procedure for heating a solid, incorporating symbols and precautions. Peers score performances using a checklist, with teacher debrief on improvements.

Design a safe procedure for a simple chemical experiment.

Facilitation Tip

In Role-Play: Safe Procedure Design, provide a scenario with a deliberate flaw, forcing students to diagnose and revise the procedure in real time.

What to look for

Show students a diagram of a simple experimental setup (e.g., mixing two liquids). Ask: 'What are two potential hazards in this setup? How could you modify the setup or procedure to make it safer?'

• Apply
• Analyze
• Evaluate
• Social Awareness
• Self-Awareness

Activity 04

• Role Play
• 30 min · Whole Class

Whole Class: Emergency Drill Practice

Simulate spills or fires with props. Students follow evacuation or cleanup steps as a class, rotating roles, then reflect on what worked well.

Explain the importance of safety symbols and precautions in a science laboratory.

Facilitation Tip

During Emergency Drill Practice, time the drill and debrief immediately to reinforce why seconds matter in real emergencies.

What to look for

Present students with images of common lab equipment (e.g., Bunsen burner, beaker, test tube rack) and ask them to write down one potential hazard associated with each and the corresponding safety precaution they would take.

• Apply
• Analyze
• Evaluate
• Social Awareness
• Self-Awareness

A few notes on teaching this unit

Start with tactile activities to anchor understanding, then layer in discussion to deepen reasoning. Avoid overwhelming students with too many symbols at once; focus on the nine most common GHS symbols in Year 7. Research shows peer teaching during role-plays strengthens retention more than lectures, so structure those moments intentionally.

Students will confidently identify hazard symbols, predict risks in setups, and justify safe procedures with clear reasoning. They will demonstrate personal responsibility by applying precautions during activities and peer-correcting others respectfully.

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Watch Out for These Misconceptions

• During Card Sort: Hazard Symbols Match, watch for students who group goggles only with chemical symbols, assuming goggles are unnecessary for physical hazards.

  After the sort, ask each group to justify why they placed goggles with a specific symbol, prompting them to connect goggles to all splashes, fragments, and heat risks.

• During Hazard Hunt: Lab Setup Audit, listen for groups that assume a blue Bunsen flame is always safe.

  Have groups adjust the Bunsen burner and observe the flame color change, then research why yellow flames indicate incomplete combustion and require immediate correction.

• During Role-Play: Safe Procedure Design, notice if students defer responsibility to the teacher in scenarios.

  Stop the role-play mid-scene and ask, 'What would you do if the teacher wasn’t here?' to push students to take ownership of safety steps.

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Methods used in this brief

• Role Play