states of matter solid liquid gas class 7

3:15

12:46

7:01

2:43

9:29

34:29

7:34

2:39

1:38

4:22

2:17

5:28

22:04

2:28

7:07

1:52

4:34

1:52

4:41

1:50

6:57

3:50

8:12

1:54

33:10

2:40

6:26

4:18

5:16

3:27

1:39

2:54

2:30

3:07

43:21

7:50

1:00:05

5:17

9:14

00:13

33:24

11:29

11:08

1:07

1:20

1:32

5:19

9:01

4:16

11:30

12:45

1:50

8:37

4:48

6:56

20:24

16:20

41:02

5:54

13:37