No Prep Plans: Measuring Current – Circuit Investigation Guide

No Prep Plans: Measuring Current – Circuit Investigation Guide
Year 7 Physics | Aligned with Cambridge Lower Secondary Science

Help students discover how scientists measure electric current and investigate one of the most important rules of electricity: in a series circuit, the current is the same at every point in the loop. In this hands-on physics investigation, students learn how to use an ammeter correctly, build simple series circuits, collect current measurements, analyze results, and create a Circuit Investigation Guide for future students.

Students explore electric current, amperes (A), ammeters, series circuits, and electrical safety while conducting real measurements and explaining their findings using evidence from their investigation. Through research, experimentation, troubleshooting, and scientific communication, students gain a deeper understanding of how electrical circuits function.

This engaging activity combines practical investigation, data analysis, and scientific reasoning while reinforcing key Year 7 Physics concepts.

What's Included
• Teacher Directions Page (45–60 minute lesson)
• Student Research & Planning Worksheet
• Student Testing & Data Collection Worksheet
• Student Circuit Investigation Report Worksheet
• Full-Color Versions
• Black-and-White Versions

Students Will Learn About
• Electric Current
• Amperes (A)
• Ammeters
• Measuring Current
• Series Circuits
• Electric Charge
• Circuit Components
• Current Flow
• Electrical Safety
• Troubleshooting Circuits
• Scientific Investigation
• Data Collection

Skills Developed
• Scientific Inquiry
• Experimental Design
• Observation Skills
• Data Collection
• Data Analysis
• Scientific Communication
• Critical Thinking
• Evidence-Based Reasoning
• Problem Solving
• Collaboration

Perfect For
• Cambridge Lower Secondary Science
• Year 7 Physics/US Grade 6
• Electricity Units
• STEM Activities
• Science Labs
• Project-Based Learning
• Engineering Investigations
• Homeschool Learning
• Small Group Activities
• Review Lessons
• Sub Plans

Teacher-Friendly Features
• Print-and-go format
• Minimal preparation required
• Uses standard classroom circuit equipment
• Hands-on investigation
• Encourages scientific discussion
• Flexible implementation options
• Supports collaborative learning
• Includes both color and black-and-white versions
• Easy to differentiate for diverse learners

Throughout the investigation, students discover that electric current is measured in amperes (A) using an ammeter connected in series. By measuring current before the bulb, after the bulb, and beside the cell, students gather evidence that the current remains the same all the way around a series circuit.

Important Disclaimer
This resource is an independent educational product created to support classroom instruction and is not affiliated with, endorsed by, or approved by Cambridge University Press & Assessment or Cambridge International Education. References to Cambridge Lower Secondary Science are provided solely to indicate curriculum alignment and instructional relevance. Teachers should use their professional judgment and their school's approved curriculum materials when implementing this resource.