sinking and floating science

9:44

3:54

5:51

4:35

7:24

4:57

7:13

13:50

2:24

3:54

10:01

5:30

7:23

6:58

8:23

6:01

3:56

6:55

1:05:59

2:03

10:06

00:40

1:08:02

10:03

4:48

3:04

6:23

1:04:05

5:36

2:18

8:03

00:14

3:14

11:13

1:02

6:11

1:21:26

36:34

6:34

2:49

10:18

9:12

00:50

18:57

4:52

1:05:18

52:05

19:46

8:55

5:27

5:36

3:14

5:51

52:27

11:22

1:42

8:18

42:52

1:21

2:23