Focusing primarily on both the understanding of our natural and man-made environments, environmental science degrees draw from diverse fields of studies and require a strong background in the more traditional sciences: biology, physics, chemistry, geography, ecology, and even biotechnology.
When and how to pinch back mums. If you decide to prune your mums, you can start pinching stems in spring when the plants have reached a height of about 6 inches. To pinch them back, simply grab a stem between your thumb and index finger about 2 to 3 inches above the base of the plant and just above a leaf and pinch it off.
Hold the ball of clay with one hand and use your other thumb to press into the center until your thumb is about Â¼ to Â½ inch from the bottom. 3. Slowly widen the hole by pinching up the walls.Turn the piece continously as you pinch to keep the walls even in thickness.4.old the ball of clay with one hand and use your other thumb to press into the center until your thumb is about Â¼ to Â½ inch from the bottom. 3. Slowly widen the hole by pinching up the walls.