Quick answer: This page gathers the 15 lessons of grade 7 science (Year 8 · Class 7), one per chapter: particle model, pure substances, heat and temperature, solubility, conservation of mass, chemical change, series and parallel circuits, current and voltage and 7 more. Each lesson gives a quick answer, worked examples, diagrams and key points, with a free PDF download. Written by a team of 12 qualified science teachers.
All the grade 7 science lessons are on this page, chapter by chapter: each lesson gives a quick answer, worked examples and diagrams, with a free PDF download. Back to the grade 7 science overview.
Grade 7 science lessons by chapter
Grade 7 science lessons
Clear science lessons with diagrams, laws, formulas and worked examples.
How particles explain solids, liquids and gases
Particle model notes (Grade 7 science): learn how the particle model explains solids, liquids and gases, diffusion, gas pressure and changes of state.
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Telling pure substances from mixtures
Pure substances notes (Grade 7 science): learn how to tell pure substances from mixtures using melting and boiling points and simple water tests.
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How heat moves and how to measure temperature
Heat and temperature notes (Grade 7 science): learn the difference between heat and temperature, how thermometers work and how conduction, convection.
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How much solute can dissolve in water
Solubility notes (Grade 7 science): learn about solutes, solvents, saturated solutions, solubility curves and concentration in g/L, with worked examples.
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Why total mass stays the same
Learn the law of conservation of mass: why total mass stays the same when sugar dissolves, ice melts or a candle burns. Worked examples and a free worksheet
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Telling physical and chemical changes apart
Learn how to tell physical and chemical changes apart, spot the signs of a reaction, and write word equations with reactants and products. Free worksheet.
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Series and parallel circuit patterns
Series and parallel circuits notes (Grade 7 science): learn the difference between series and parallel circuits: bulbs, cells, short circuits and fuses.
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Reading ammeters and voltmeters in circuits
Current and voltage notes (Grade 7 science).
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How moving and lifted objects store energy
Learn kinetic and gravitational potential energy for grade 7: KE = ½mv², GPE = mgh, worked examples, energy conversions and a free worksheet with answers.
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Following energy through devices and chains
Energy transfers notes (Grade 7 science): grade 7 energy transfers explained: energy chains, wasted energy, Sankey diagrams and efficiency.
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Pushes, pulls and balanced forces
Grade 7 forces: contact and non-contact forces, force arrows, newtons, spring scales and balanced forces, with worked examples and a free worksheet.
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Why weight changes from planet to planet
Weight and mass notes (Grade 7 science): grade 7 gravity, mass and weight: W = m × g, field strength on Earth, the Moon and Mars.
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How waves carry energy without matter
Learn what waves are, how transverse and longitudinal waves differ, and how to use amplitude, wavelength, frequency and v = f × λ. Includes a free PDF.
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How light bounces, bends and is absorbed
Reflection of light notes (Grade 7 science): learn the law of reflection, how plane mirrors form images, why light bends in glass and water.
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What air is made of and why it presses
Atmospheric pressure notes (Grade 7 science): find out what air is made of, why air has mass, what atmospheric pressure is and how a barometer works.
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