6 free chemical sciences resources for Year 9: 5 worksheets, 1 study guide. Answers included.
Materials, their properties and how they change. Year 9 extends algebra to expanding brackets and two-step equations, adds percentages increase and decrease, ratio and rates, index laws and congruence.
Students will practise: describing the arrangement and movement of particles in solids, liquids and gases; using the particle model to explain properties such as shape, volume and compressibility; naming and explaining changes of state; explaining why temperature stays constant during melting and boiling; explaining diffusion, gas pressure and expansion with the particle model; distinguishing physical changes from chemical changes; classifying everyday changes as physical or chemical; identifying evidence that a chemical change has occurred.
Printable practice with an answer sheet.
Students learn the difference between a physical change, where no new substance forms, and a chemical change, where new substances are…
Students calculate density with D = m ÷ V, rearrange the formula to find mass or volume, and measure volume using length × width × height…
Students distinguish atoms, molecules, elements, compounds and mixtures, classify everyday substances and particle descriptions, and read…
Students define material properties such as strength, hardness, flexibility, brittleness, thermal and electrical conductivity and melting…
Students use the terms solute, solvent, solution, soluble, insoluble and saturated, explain dissolving with the particle model and…
Clear explanations, examples and tips.
A study guide to the particle model of matter: how the arrangement, spacing and movement of particles explain the properties of solids,…
All chemical sciences worksheets, every year →
Materials, their properties and how they change. At Year 9, our resources focus on: describing the arrangement and movement of particles in solids, liquids and gases; using the particle model to explain properties such as shape, volume and compressibility; naming and explaining changes of state; explaining why temperature stays constant during melting and boiling.
Read the study guide first, then start with the Level 1 or Level 2 worksheet. Finish with the topic test.
Yes — every worksheet has an answer sheet. Maths answer sheets show the working; English tasks include model answers or success criteria.
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