Grade 4 Science: Electricity and Simple Circuits
Free Grade 4 Science unit on Electricity and Simple Circuits: 10 lessons in order. Includes practice questions and answer keys.
10 lessons in this unit
Electricity in everyday life
Learn what electricity does in homes, schools and communities, name appliances that use it, and begin the safety habits needed around mains electricity.
Lesson 2Electrical energy sources
Learn where electrical energy comes from: batteries, solar cells, generators and power stations, and compare renewable and non-renewable sources.
Lesson 3Simple circuit components
Learn the parts of a simple circuit: cell, wires, lamp and switch, how they connect to make a complete loop, and how to draw them with symbols.
Lesson 4Cells and batteries
Learn the difference between a cell and a battery, how more cells in series make a lamp brighter, and how to recycle batteries safely.
Lesson 5Wires
Learn the job of wires, why they are made of metal covered in plastic, how thickness and length affect a circuit, and how to connect wires safely.
Lesson 6Lamps
Learn how a lamp changes electrical energy into light and heat, compare filament, LED and fluorescent lamps, and troubleshoot a lamp that will not light.
Lesson 7Switches
Learn how a switch opens and closes a circuit, build different switches from card and foil, and compare common switches in daily life.
Lesson 8Open and closed circuits
Learn to tell open (broken) circuits from closed (complete) circuits, predict whether a lamp lights, and find breaks in simple faulty circuits.
Lesson 9Conductors and insulators
Learn that conductors let electricity pass and insulators do not, test materials with a simple circuit and explain why this matters for safety.
Lesson 10Electrical safety
Learn the rules for staying safe with electricity at home, school and outdoors, recognise hazards, and know what to do if someone is in danger.