The Senior Community Service Employment Program (SCSEP) is a community service and work-based job training program for older Americans. Authorized by the Older Americans Act, the program provides training for low-income, unemployed seniors. Participants also have access to employment assistance through American Job Centers. SCSEP participants gain work experience in a variety of community service activities at non-profit and public facilities, including schools, hospitals, day-care centers, and senior centers.
Lightning and Thunder. Lightning is the spark caused when electricity that has built up in a thunderhead discharges. One theory is that air in motion rubs particles of ice and rain moving downward against particles moving upward. As the particles rub together they become charged with static electricity.
When this happens, a stream of negative charges pours down towards a high point where positive charges have clustered due to the pull of the thunderhead. The connection is made and the protons rush up to meet the electrons. It is at that point that we see lightning and hear thunder. A bolt of lightning heats the air along its path causing it to expand rapidly. Thunder is the sound caused by rapidly expanding air.