b environmental variation – colour, or do they show a Although leaves on the same section of the diagram, different characteristics range between two tree have the same alleles, and ask students to caused by an organism’s extremes, as in height). environmental conditions such spot what the labels environment (acquired as amount of light and warmth should be for each of characteristics) Then ask what causes may vary on even a small the circles and for the other examples of scale. For example, leaves that area of intersection. variation. Introduce the are shaded by others are more Once students have effect of the likely to be larger and may be identified the labels, ask environment. Complete a different shade of green. them to suggest where the discussion by the remaining considering which Equipment ruler, calipers, characteristics should characteristics may be green colour chart, sealable be placed within the affected by both collecting bags for leaves, diagram. environment and genes. labels for bags, marker pen, Continuous or computer/tablet with Digital discontinuous spreadsheet application presentation Chemistry Spec points covered Starter Practical activity Teacher-led activity CC4a Elements C1.13 Describe how Mendeleev Draw nine shapes on the Give students have nine Show how properties of and the Periodic arranged the elements, board, e.g. three element cards to sort (Li, Na, an element in groups 1 Table known at that time, in a squares, three circles K; Mg, Ca, Sr; F, Cl, Br). and 7 can be predicted periodic table by using and three triangles. For using the properties of each shape, leave one
b environmental variation – different characteristics caused by an organism’s environment (acquired characteristics) colour, or do they show a range between two extremes, as in height). Then ask what causes other examples of variation. Introduce the effect of the environment. Complete the discussion by considering which characteristics may be affected by both environment and genes. Although leaves on the same tree have the same alleles, environmental conditions such as amount of light and warmth may vary on even a small scale. For example, leaves that are shaded by others are more likely to be larger and may be a different shade of green. Equipment ruler, calipers, green colour chart, sealable collecting bags for leaves, labels for bags, marker pen, computer/tablet with spreadsheet application section of the diagram, and ask students to spot what the labels should be for each of the circles and for the area of intersection. Once students have identified the labels, ask them to suggest where the remaining characteristics should be placed within the diagram. Digital Continuous or discontinuous presentation Chemistry Spec points covered Starter Practical activity Teacher-led activity CC4a Elements and the Periodic Table C1.13 Describe how Mendeleev arranged the elements, known at that time, in a periodic table by using Draw nine shapes on the board, e.g. three squares, three circles and three triangles. For each shape, leave one Give students have nine element cards to sort (Li, Na, K; Mg, Ca, Sr; F, Cl, Br). Show how properties of an element in groups 1 and 7 can be predicted using the properties of