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.
Plant the garlic clove 4-6 inches deep. In areas with colder winters you should plant the garlic at least 5-6 inches deep and 4-8 inches apart. We space garlic 6 inches apart in rows, with rows 8 inches apart. You can make individual holes using a blunt handle (such as the end of a rake or shovel) or a bulb planter. You can also dig a trench 4-6 inches deep; lay in the garlic cloves and cover.