3 free states of matter & materials resources for 8th Grade: 2 worksheets, 1 study guide. Answers included.
Solids, liquids and gases, properties of materials and changes of state. 8th grade extends algebra to expanding brackets and two-step equations, adds percentages increase and decrease, ratio and rates, index laws and congruence.
Students will practice: 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; calculating density from mass and volume; rearranging the density formula to find mass or volume; measuring volume by calculation and by water displacement.
Printable practice with an answer sheet.
Students calculate density with D = m ÷ V, rearrange the formula to find mass or volume, and measure volume using length × width × height…
Students define material properties such as strength, hardness, flexibility, brittleness, thermal and electrical conductivity and melting…
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,…
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Solids, liquids and gases, properties of materials and changes of state. At 8th Grade, 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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