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Term
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What are we learning
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1
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Particles
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- Explain the properties of the different states of matter (solid, liquid and gas) in terms of the particle model, including gas pressure
- Explain changes of state in terms of the particle model.
- Know that conservation of mass applies to changes of state
- Define the concept of a pure substance
- Describe what is meant by mixtures, including dissolving
- Explain diffusion in terms of the particle model
- Describe simple techniques for separating mixtures: filtration, evaporation, distillation and chromatography
- Identify pure substances.
- Describe energy changes on changes of state
- Use and interpret negative numbers
- Plot graphs of secondary data
- Make and record accurate measurements
- Check for reproducibility and recognise when results are reproducible
- Evaluate separation methods and suggest improvements
- Identify hazards and risks and suggest appropriate safety precaution
- Identify anomalies and leave them out of lines of best fit
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2
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Cells, tissues and organs
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- Know cells as the fundamental unit of living organisms, including how to observe, interpret and record cell structure using a light microscope
- Know the functions of the cell wall, cell membrane, cytoplasm, nucleus, vacuole, mitochondria and chloroplasts
- Identify the similarities and differences between plant and animal cells
- Describe the role of diffusion in the movement of materials in and between cells
- Describe the hierarchical organisation of multicellular organisms: from cells to tissues to organs to systems to organisms.
- Identify the structural adaptations of some unicellular organisms
- Know the tissues and organs of the human digestive system, including adaptations to function and how the digestive system digests food
- Know the structure and functions of the gas exchange system in humans
- Correctly use a microscope to view samples in greater detail
- Calculate magnification using eyepiece lens x objective lens
- Use magnification = image size ÷ actual size
- Identify independent, dependent and control variables
- Draw a suitable results table
- Carry out an investigation to test a hypothesis
- Calculate means and rounding up numbers appropriately
- Plot graphs with line of best fit
- Use data to form conclusions
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3
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Energy
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- Know processes that involve energy transfer: changing motion, dropping an object, completing an electrical circuit, stretching a spring, metabolism of food, burning fuels.
- Explain heating and thermal equilibrium: temperature difference between two objects leading to energy transfer from the hotter to the cooler one, through contact (conduction), movement of fluids (convection) or radiation; such transfers tending to reduce the temperature difference: use of insulators
- Understand energy as a quantity that can be quantified and calculated; the total energy has the same value before and after a change
- Compare the starting and the final conditions of a system and describing increases and decreases in the amounts of energy associated with movements, temperatures, changes in positions in a field, in elastic distortions and in chemical compositions
- Compare energy values of different foods (from labels) (kJ)
- Comparing power ratings of appliances in watts (W, kW)
- Compare amounts of energy transferred (J, kJ, kW hour)
- Understand domestic fuel bills, fuel use and costs
- Describe fuels and energy resources.
- Understand electric current as a flow of charge, measured in amperes, in circuits, series and parallel circuits, currents add where branches meet and current as flow of charge
- Understand potential difference, measured in volts, battery and bulb ratings
- Identify variables to change, measure and control
- Identify hazards and risks, and suggest appropriate and relevant safety precautions
- Describing patterns in primary and secondary data
- Drawing graphs
- Evaluate methods and data, making suggestions for improvements to procedures or equipment
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4
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Reproduction and variation
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- Describe reproduction in humans (as an example of a mammal), including the structure and function of the male and female reproductive systems, menstrual cycle (without details of hormones), gametes, fertilisation, gestation and birth
- Describe reproduction in plants, including flower structure, wind and insect pollination, fertilisation, seed and fruit formation and dispersal, including quantitative investigation of some dispersal mechanisms.
- Describe differences between species
- Describe the variation between individuals within a species being continuous or discrete (discontinuous), to include measurement and graphical representation of variation
- Analyse secondary data, describing patterns, suggesting reasons for patterns, spotting anomalies
- Collect, process and display data appropriately, explaining the choice for bar charts or line graphs in terms of the type of data
- Identify variables
- Use a model to illustrate sexual reproduction
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5
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Chemical Reactions
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- Understand conservation of mass in chemical reactions.
- Understand chemical reactions as the rearrangement of atoms
- Use word equations to represent chemical reactions
- Define acids and alkalis in terms of neutralisation reactions
- Use indicators and the pH scale to measure acidity/alkalinity
- Know acids react with metals to produce a salt and hydrogen
- Know acids react with alkalis to produce a salt plus water
- Make observations for evidence of a reaction
- Recognise hazard symbols, suggest risks associated with them and appropriate safety precautions
- Identifying variables to change, measure and control to test a hypothesis
- Recognising repeatable data and processing it appropriately
- Choice of bar chart based on categoric data
- Check for and comment on reproducibility
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6
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Forces and Motion
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- Identify and measure forces
- Draw force diagrams
- Understand the effect of balanced and unbalanced forces on the motion of objects
- Find the gravitational field strength on Earth
- Calculate the weight of an object
- Understand the link between force and pressure
- Calculate pressure calculations
- Apply the idea of pressure to explain everyday situations.
- Understand how forces affect the speed of an object
- Calculate speed
- Formulate a hypothesis and make a prediction.
- Identify the variables in a given method
- Select appropriate apparatus for making measurements
- Collect and process results, and choose to present the data as a suitable graph
- Write conclusions based on results obtained or secondary data provided, and relate results to predictions/ hypothesis
- Use and rearrange equations to perform calculations, using SI units where appropriate.
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Links
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https://classroom.thenational.academy/subjects-by-key-stage/key-stage-3/subjects/science
https://www.bbc.co.uk/bitesize/subjects/zng4d2p
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