1
00:00:00,000 --> 00:00:05,320
Electricity is a flow of charged particles. These particles originate in

2
00:00:05,320 --> 00:00:09,820
the atom. If you have ever studied the atom you will know that an atom has a

3
00:00:09,820 --> 00:00:15,199
compact center called the nucleus. The nucleus contains two types of particles

4
00:00:15,199 --> 00:00:20,920
protons which have a positive electric charge and neutrons which have no

5
00:00:20,920 --> 00:00:26,559
electric charge. Small charged particles called electrons exist outside of the

6
00:00:26,559 --> 00:00:31,660
nucleus. Electrons have a negative charge and they are attracted to the

7
00:00:31,660 --> 00:00:38,140
positively charged protons. The electrons move in high-speed orbits around the

8
00:00:38,140 --> 00:00:42,619
nucleus, held close to the nucleus by the strong force of attraction from the

9
00:00:42,619 --> 00:00:48,759
protons. You can witness this force by rubbing a balloon on fabric, creating an

10
00:00:48,759 --> 00:00:53,979
imbalance of electrons and protons. Small pieces of paper will stand up and jump

11
00:00:53,979 --> 00:01:00,380
to the negatively charged balloon. Scientists call this static electricity because the charge

12
00:01:00,380 --> 00:01:07,420
doesn't move. It stays on the balloon. Two negatively charged balloons repel one another.

13
00:01:07,420 --> 00:01:13,900
The light charges on each balloon repel. This force can cause electrons to move from one place

14
00:01:13,900 --> 00:01:20,060
to another. When electrons flow between two points, we call this electricity. One of the

15
00:01:20,060 --> 00:01:24,060
One of the most dramatic effects of electricity is a lightning strike.

16
00:01:24,060 --> 00:01:29,060
Electrically charged clouds release their charge in an explosive flash.

17
00:01:33,060 --> 00:01:36,060
A powerful demonstration of electricity.