B3.1.15 understand how carbon is B3.3.9, recall that many different substances recycled through the B3.3.10 cycle through the abiotic and biotic environment to include the components of an ecosystem, including processes of combustion, carbon and water respiration, photosynthesis and explain the importance of the carbon decomposition cycle and the water cycle to living organisms B3.1.16 understand the importance of B3.3.11 explain the role of microorganisms in the the role of microorganisms in the cycling of substances through an carbon cycle ecosystem B3.1.17 understand how nitrogen is B3.3.9 NA recycled through the environment in the processes of: a. nitrogen fixation to form nitrogen compounds including nitrates b. conversion of nitrogen compounds to protein in plants and animals c. transfer of nitrogen compounds through food chains d. excretion, death and decay of plants and animals resulting in release of nitrates into the soil e. uptake of nitrates by plants f. denitrification i Foundation tier candidates are not expected to recall details of conversion of atmospheric nitrogen to nitrates, or nitrates to atmospheric nitrogen B3.1.18 understand the importance of B3.3.11 explain the role of microorganisms in the the role of microorganisms in the cycling of substances through an nitrogen cycle, including ecosystem decomposition, nitrogen fixation and denitrification B3.1.19 interpret simple diagrams of the NA NA carbon cycle and nitrogen cycle i Foundation tier candidates are  not expected to recall nitrogen fixation or denitrification B3.1.20 understand how environmental NA NA change can be measured using non-living indicators, including  nitrate levels, temperature and carbon dioxide levels B3.1.21 understand how climate and NA NA environmental change can be measured living indicators,  including phytoplankton, lichens and aquatic river organisms such as mayfly nymphs B3.1.22 interpret data obtained from NA NA living and non-living indicators to  investigate environmental change.
B3.1.15 understand how carbon is recycled through the environment to include the processes of combustion, respiration, photosynthesis and decomposition B3.3.9, B3.3.10 recall that many different substances cycle through the abiotic and biotic components of an ecosystem, including carbon and water explain the importance of the carbon cycle and the water cycle to living organisms B3.1.16 understand the importance of the role of microorganisms in the carbon cycle B3.3.11 explain the role of microorganisms in the cycling of substances through an ecosystem B3.1.17 understand how nitrogen is recycled through the environment in the processes of: a. nitrogen fixation to form nitrogen compounds including nitrates b. conversion of nitrogen compounds to protein in plants and animals c. transfer of nitrogen compounds through food chains d. excretion, death and decay of plants and animals resulting in release of nitrates into the soil e. uptake of nitrates by plants f. denitrification i Foundation tier candidates are not expected to recall details of conversion of atmospheric nitrogen to nitrates, or nitrates to atmospheric nitrogen B3.3.9 NA B3.1.18 understand the importance of the role of microorganisms in the nitrogen cycle, including decomposition, nitrogen fixation and denitrification B3.3.11 explain the role of microorganisms in the cycling of substances through an ecosystem B3.1.19 interpret simple diagrams of the carbon cycle and nitrogen cycle i Foundation tier candidates are not expected to recall nitrogen fixation or denitrification NA NA  B3.1.20 understand how environmental change can be measured using non-living indicators, including nitrate levels, temperature and carbon dioxide levels NA NA  B3.1.21 understand how climate and environmental change can be measured living indicators, including phytoplankton, lichens and aquatic river organisms such as mayfly nymphs NA NA  B3.1.22 interpret data obtained from living and non-living indicators to investigate environmental change. NA NA 
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