Explain changes in the distribution of species Practical sheets Homework in an ecosystem. 4.5.1 and 4.5.2; worksheet Describe stable and unstable populations. Technician’s notes Homework quiz 4.5 Slideshow 7/8 4.6 Investigating Describe how changes in one population affect B4.1g; BM4.1v Worksheets 4.6.1 Quick starter predator–prey another. and 4.6.2; Practical Homework relationships Explain interdependent relationships. sheet 4.6; worksheet Explain how predator–prey population cycles Technician’s notes Homework quiz have cyclical changes. 4.6 7/8 4.7 Competing for Describe how competition impacts on B4.1g Worksheets 4.7.1, Quick starter resources populations. 4.7.2 and 4.7.3 Homework Explain why animals in the same habitat are in worksheet competition. Homework quiz Explain interspecific and intraspecific Slideshow competition. 7/8 4.8 Looking at trophic Explain trophic levels. B4.1h Worksheets 4.8.1, Quick starter levels Explain and construct pyramids of biomass. 4.8.2 and 4.8.3 Homework Explain the difficulties in constructing worksheet pyramids. Homework quiz 7/8 4.9 Transferring biomass Identify how biomass is lost. B4.1i; B4.1j; Worksheets 4.9.1, Quick starter 3 10 Calculate the efficiency of biomass transfers BM4.1iii 4.9.2 and 4.9.3 Homework between trophic levels. worksheet Term Year Explain the impact of biomass loss on the Homework quiz number of trophic levels in a food Video 9/10 4.10 Maths skills: Using To recognise direct proportionality in a graph. BM1.2i; Worksheet 4.10 Quick starter graphs to show To calculate reaction rates in linear graphs. BM1.2ii; Homework relationships To use the gradient of a graph to calculate the BM1.4i; worksheet rate. BM4.1v Homework quiz Slideshow Video 9/10 Assessments End of chapter test Student Book End of chapter test Collins Connect
Explain changes in the distribution of species in an ecosystem. Describe stable and unstable populations. Practical sheets 4.5.1 and 4.5.2; Technician’s notes 4.5 Homework worksheet Homework quiz Slideshow 7/8 4.6 Investigating predator–prey relationships Describe how changes in one population affect another. Explain interdependent relationships. Explain how predator–prey population cycles have cyclical changes. B4.1g; BM4.1v Worksheets 4.6.1 and 4.6.2; Practical sheet 4.6; Technician’s notes 4.6 Quick starter Homework worksheet Homework quiz Year 10 Term 3 7/8 4.7 Competing for resources Describe how competition impacts on populations. Explain why animals in the same habitat are in competition. Explain interspecific and intraspecific competition. B4.1g Worksheets 4.7.1, 4.7.2 and 4.7.3 Quick starter Homework worksheet Homework quiz Slideshow 7/8 4.8 Looking at trophic levels Explain trophic levels. Explain and construct pyramids of biomass. Explain the difficulties in constructing pyramids. B4.1h Worksheets 4.8.1, 4.8.2 and 4.8.3 Quick starter Homework worksheet Homework quiz 7/8 4.9 Transferring biomass Identify how biomass is lost. Calculate the efficiency of biomass transfers between trophic levels. Explain the impact of biomass loss on the number of trophic levels in a food B4.1i; B4.1j; BM4.1iii Worksheets 4.9.1, 4.9.2 and 4.9.3 Quick starter Homework worksheet Homework quiz Video 9/10 4.10 Maths skills: Using graphs to show relationships To recognise direct proportionality in a graph. To calculate reaction rates in linear graphs. To use the gradient of a graph to calculate the rate. BM1.2i; BM1.2ii; BM1.4i; BM4.1v Worksheet 4.10 Quick starter Homework worksheet Homework quiz Slideshow Video 9/10 Assessments End of chapter test Student Book End of chapter test Collins Connect
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