Exploring evaporation

Year level: Middle primary Learning outcome Students examine how high evaporation can affect plants and soils. You need: six pots of sandy soil four seedlings full sun and shaded area a large fan water spray Plant a seedling in four of the pots. Place two of the pots with seedlings and one without in the sun, and other three pots in the shade. Water lightly each week, one of the pots with a seedling in the sun and one with a seedling in the shade, as well as the two without plants. Keep a record of the growth of all of the plants and the texture of the soil. Subject all of the pots to a strong wind using the fan after one of the plants has died. Describe the effects of the wind on each of the plants and the soil. Water each of the pots with a forceful spray of water. Describe the effects of strongly falling water on each of the plants and the soil. Assessment task Make a statement about the effects of water and wind on soil and plants in shaded and full-sun environments.