Aim: To investigate the factors affecting the rate of growth of mustard seeds. Variables: The key factors that will affect the germination of the mustard seeds: · Temperature: as many plants germinate more rapidly in the warm. · Water: as water normally controls germination. · Oxygen: as seeds rapidly take in oxygen during germination. · Light: as some plants need light to germinate. · Dark: as most plants germinate in the dark. · Soil composition: the richer in nutrient the soil …showed first 75 words of 1533 total…

…showed last 75 words of 1533 total…them. It was quite difficult to measure them with a ruler so most measurements were estimates. My prediction was wrong because on the 3rd day the Sandy soil and chipping seeds had begun to grow. I don’t know why the seeds in the cotton wool and garden soil didn’t grow because all the pots were given 25ml of water when they needed watering. The seeds could have been out of date or unhealthy.