science_grade_4

53:46

11:16

11:40

14:41

22:00

31:44

3:37

23:24

12:53

21:54

16:16

4:18

14:59

12:36

15:35

6:08

8:51

10:54

30:04

31:50

20:38

5:14

1:30

12:25

9:50

6:17

21:51

14:47

2:28

16:11

13:14

8:53

4:38

13:30

7:55

5:24

29:30

12:46

9:07

13:00

3:35

12:09

1:58:48

8:26

27:08

25:56

7:07

4:17

7:06

11:42

25:36

25:59

6:04

31:06

29:31

19:10

20:39

13:37

33:22

7:01