Check the dishes every 2-3 days to be sure they are moist. Be sure to check the ones in the dark without exposing them to bright light and as quickly as possible. At the end of 14, days count the number of seeds germinated in the light and dark for each plant. Determine the percentage germination for each. Additional Exercises Other evaluation methods besides germination can also be used, such as measuring the root and shoot portions of the germinated seed, and planting the germinated seeds and taking weekly measurements on the plants.
Students can then determine the effects of light on plant growth as well as seed germination.