A shovel is a tool used for digging, lifting, and moving bulk materials like soil, coal, gravel, sand, or ore. It is commonly used in agriculture, construction, and gardening. Safety is important when using a shovel - inspect it for defects before use, and do not overextend or twist your body. Proper form such as keeping your back straight, bending at the knees, and not lifting loads over 15 pounds can prevent injury.