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.
The soil should be medium-rich, loose and well drained with a pH of 6.0 to 7.0. How far apart you space the plants depends on the type of tomato youâve selected. Dwarf varieties should be spaced about 12 inches apart in a row. If you plan on staking your plants, space them about 24 inches apart. Set sprawling, indeterminate tomatoes about 36 to 48 inches apart. Plant your seedlings about 1 inch deeper than they are sitting in the nursery container.