simple electric circuit for science exhibition

6:05

2:01

2:33

3:27

2:45

2:31

3:04

11:52

3:37

1:26

1:49

3:38

21:00

6:04

4:12

2:38

2:49

5:07

19:24

11:04

3:59

5:41

2:29

1:12

3:47

1:21

4:43

4:21

8:07

1:11

4:01

4:42

6:11

2:38

6:48

2:35

4:09

4:56

1:18

1:21

3:13

3:07

4:20

8:18

1:13

00:07

4:10

4:46

4:32

15:05

6:06

2:44

2:30

12:42

2:00

4:20

5:57

10:20

2:47

12:47