1. Quia:
Easy: CBCTEG963
Regular: JKNAMJ867
Diff: BXGK944

2. Bulges are fixed on the Moon
1st Tidal Bulge
2nd Tidal Bulge X
Low Tide X
Low Tide X
High Tide X
High Tide
Earth
1 day rotation X
High Tide X
High Tide
2nd Tidal Bulge X
Low Tide X
Low Tide
1st Tidal Bulge

3. Bi 2 weeks 12 hours Daily Tide Cycle Monthly Tide Cycle
#1. There are 2 high tides and 2 low tides each day
#1. 2 SPRING tides and 2 NEAP tides each Month
#2. During a new and full moon line up the tides are stronger
#2. Earth rotates through two tidal bulges fixed on the moon Bi
Spring Tide
=strong tide
1st T.B.
2nd T.B.
1st T.B.
2nd T.B.
1st T.B.
2nd T.B.
Meters
Meters
Neap Tide
=Weak Tide
Hours
Hours

4. Tides: the regular rise and fall of ocean water caused by gravity
Earth has 2 Tidal bulges: (high tides that move as the moon revolves)
-in 25 hours Earth rotates through the two tidal bulges to experience two high and two low tides each day.
SPRING TIDES are the strongest with the highest high and the lowest low tides. Occur during a Full and New moon when the sun Earth and moon line up in a straight line (180◦)
NEAP TIDES are the weakest with less noticeable high and low tides. Occur during a half moon phases when the sun Earth and moon make a right angle (90◦)

5. Mr. Andres
High Tides
low
closest
rotates
opposite
six hours
six hours
sweeps
high tides

6. Mr. Andres
High Tides
low
closest
rotates
opposite
six hours
six hours
sweeps
high tides
spring
spring
difference
right angle

7. gravity Mr. Andres High Tides low closest rotates opposite six hours
sweeps
high tides
spring
spring
difference
right angle
gravity
Regular rise and fall of ocean water
The side of the moon facing Earth is dark.
The moon, sun, & earth’s
gravity lines up at 180o

8. strong weak strong high low high Spring strong lowest New weak right
Full
Tides