Air column: space within the percussion instrument that determines the pitch. Percussion: sounds produced by striking the instrument with a mallet or stick, or striking one instrument against another. 2. Review the process of forming a hypothesis and making a prediction.
Dig short, shallow rows. The rows should be no more than 1/2 inch (1.5 centimeters) deep and spaced 4 inches (10 centimeters) to 6 inches (15 centimeters) apart. 3. Drop the seeds into the rows. Space the seeds approximately 1 inch (25 millimeters) apart in order to allow the onions enough room to grow and mature.
Space onion sets 4â6 inches (10.2â15.2 cm) apart, and onion seeds 1â2 inches (2.5â5.1 cm) apart. As your onions begin to grow, you can transplant them and space them further apart in order to increase their growing size.3. Plant the onions.et the soil ready. When youâre ready to plant, till the soil about 6 inches (15.2 cm) deep and add a layer (1 cup per 20 feet) of phosphorous fertilizer. Using a mixture such as 10-20-10 or 0-20-0 will provide an extra boost for your developing onions.