Worksheet Tides Tides And Tides printable pdf download

Worksheet Tides Tides And Tides

Name:___________________________________________________ Period:_______ Date:________

Worksheet: Tides, Tides and Tides !

Tides are caused by the pull of gravity by both the moon and the sun. The moon is more important because

it closer to the earth. The moon causes the water on the side of the Earth nearest to the moon rises up in a

high tide. The water on the opposite side of the Earth also rises up in an high tide as the solid Earth under it

is pulled toward the moon. Low tides occur in between these places as water flows toward the high tides.

The Earth rotates on its axis once every 24 hours, so the moon causes high tides at any one location twice

every day. High tides would occur every 12 hours, except for one thing. The moon revolves around the

Earth at the same time as the Earth is rotating. When Earth completes one revolution, the moon has moved

13 degrees in the same direction. Therefore, the Earth has to rotate a little more before the moon is over

the same place that it was 24 hours earlier.

Part A: What tide is it ?

For this reason, high tides are slightly more than 12 hours apart. The afternoon high tide on one day is

about 12hours and 50 minutes later than the afternoon high tide on the previous day, and the same holds

true for low tides.

Tides for Cape May, New Jersey

Low tides

High Tides

Day of Week

A.M.

P.M.

A. M.

P.M.

Tuesday

9:16

9:28

2:43

3:30

Wednesday

10:09

10:25

3:52

4:33

Thursday

11:00

11:20

4:54

5:28

Friday

11:50

12:07

5:48

6:17

Saturday

12:14

12:39

6:37

7:04

Sunday

1:06

1:28

7:25

7:51

Monday

1:57

2:15

8:12

8:38

• Use the information in the table above to determine the time between the low tides and high tides for the

day. The first set is done for you.

Day of the Week

Time between low tides

Time between high tides

Tuesday

12 hours 12 minutes

12 hours 47 minutes