Year 7 Science Worksheets with Answers

Cells

• · Cells as the basic unit of life
• · Parts of animal and plant cells and what they do: nucleus, membrane, cytoplasm, mitochondria, cell wall, chloroplasts, vacuole
• · Using a light microscope

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Particles and States of Matter

• · The particle model of solids, liquids and gases
• · Changes of state: melting, freezing, boiling, condensing and sublimation
• · Diffusion and density

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Forces

• · Forces as pushes and pulls, measured in newtons
• · Balanced and unbalanced forces
• · Friction and air resistance

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Energy

• · Energy stores and transfers
• · Conservation of energy
• · Renewable and non-renewable energy resources

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Acids and Alkalis

• · The pH scale and indicators
• · Strong and weak acids
• · Neutralisation reactions

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Reproduction

• · Human reproductive systems
• · Puberty and adolescence
• · The menstrual cycle, fertilisation and gestation

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