Tides

Open Ended

Write down your observations on what is causing the phenomenon you saw in the video.

Multiple Choice

Tides are the cycle of rising and falling ocean water that repeats automatically every

• 24 hours
• 12.5 hours
• 25 hours
• 6.25 hours

Multiple Choice

What is the primary cause of tides?

• The heat of the sun

• The gravity of the moon

• Sea breezes and land breezes

• The shape of the earth

Multiple Choice

Which is longer: the lunar day or the solar day?

• Lunar day

• Solar Day

Multiple Choice

Which body has the greater effect on Earth's tides?

• Sun

• Saturn

• Moon

• Venus

Multiple Choice

Differences in the moon's and sun's pull on different sides of the Earth cause _________.

• gravity
• lunar phases
• tides
• dabbing

Audio Response

During which moon phases would we see a Spring Tide?

Open Audio Recorder

Audio Response

What happens to tide levels during a Spring Tide?

Open Audio Recorder

Draw

Draw and label where the sun, moon, and earth would be during a Spring Tide.

Draw

Draw and label where the sun, moon, and Earth have to be to create a Neap Tide

Neap Tide

•

The least amount of difference between high and low
tides

•

Occurs during a 1stQuarter and 3rdQuarter phase

•

Remember “Neap – Ninety” - the Sun, Earth, and Moon
form a 90 degree angle (right angle)

Neap Tide

Phases of the Moon

•

Neap tides occur during certain moon phases.

•

1st Quarter Moon - the moon is at a 90 degree angle to
the Earth.

•

3rd Quarter Moon - the moon is at a 90 degree angle to
the Earth.

Spring Tide

Spring Tide

•

A tide in which the difference between high and low
tide is the greatest

•

Occurs during a New Moon and Full Moon

•

Remember “Spring – Straight” - the Sun, Earth, and
Moon form a straight line

Spring Tide

Multiple Choice

What is a difference between spring and neap tides?

• Spring tides occur when the earth and sun are IN LINE with the new or full moon.

• Spring tides occur when moon in 3rd or 1st quarter phases

• Spring tides are LOWER than neap tides

• Spring tides occur in Spring and neap tides can occur in any season

Multiple Choice

What type of tides would this arrangement of earth-moon-sun create?

• neap tide
• spring tide
• new moon tide
• full moon tide

Multiple Choice

The diagram below shows the alignment of the sun, the moon, and Earth. In which locations are neap tides taking place?

• 1 and 2

• 1 and 3

• 2 and 4

• 3 and 4

Multiple Choice

What causes tides?

• gravity
• wind
• spring
• neap

Multiple Choice

The difference in levels of ocean water at high and low tides is the _________________.

• low tide
• tidal range
• high tide
• slack water

Multiple Choice

What type of tide will occur at 9:30 a.m.?

• low 
• high 
• none
• high and low

Multiple Choice

Why does the moon's gravitational pull have more of effect on tides than the sun's gravitational pull?

• they are the same
• the moon is larger than the sun
• tides are not caused by the moon
• the moon is closer to the Earth than the sun