Lunar Surface

what is a lunar cycle?

• No reflected light from the sun is visible Occurs directly after a waning crescent, but before a waxing crescent

• The first half of the lunar cycle the light reflected off of the moon’s surface appears to increase (waxing)

• The lunar cycle (from new moon back to new moon) takes 29.5 days The phases of the moon are a reflection of the Sun’s light bouncing off of the moon’s surface The moon appears to change shape because only certain portions of its illuminated side are seen as the moon revolves around Earth

• The second half of the lunar cycle the light reflected off of the moon’s surface appears to decrease (waning)

what are moon phases?

• The same moon phase is seen by everyone on Earth each night The first half of the lunar cycle the light reflected off of the moon’s surface appears to increase (waxing) The second half of the lunar cycle the light reflected off of the moon’s surface appears to decrease (waning)

• The lunar cycle (from new moon back to new moon) takes 29.5 days The phases of the moon are a reflection of the Sun’s light bouncing off of the moon’s surface The moon appears to change shape because only certain portions of its illuminated side are seen as the moon revolves around Earth

• Less than half of the moon is visible from Earth The visible light appears on the left Occurs directly after a third quarter, but before a new moon

• All of the reflected light from the sun is visible Occurs directly after a waxing gibbous, but before a waning gibbous

What phase is these?

• Full moon

• First Quarter

• Waxing Cresent

• New moon

What phase is these?

• Waning Cresent

• Waxing Cresent

• Full moon

• New moon

What phase is this?

• Third Quarter moon

• Waning gibbious

• First Quarter

• Waxing gibbious

What phase is this?

• Waning gibbious

• Full moon

• Third Quarter moon

• Waxing gibbious

What is a tide?

• The regular rise and fall of ocean water levels.

• When Earth, the sun, and the moon are all lined up, the gravity of the moon and the sun ADD up, resulting in higher high tides and lower low tides

• When the sun and the moon are at a 90-degree angle to each other relative to Earth, the gravitational forces are not aligned, so they don’t add up

• the water is being pulled toward the moon

What is a Spring Tide?

• The regular rise and fall of ocean water levels

• When Earth, the sun, and the moon are all lined up, the gravity of the moon and the sun ADD up, resulting in higher high tides and lower low tides

• When the sun and the moon are at a 90-degree angle to each other relative to Earth, the gravitational forces are not aligned, so they don’t add up

• The water is being pulled toward the moon

What is a Neap Tide?

• The regular rise and fall of ocean water levels

• When Earth, the sun, and the moon are all lined up, the gravity of the moon and the sun ADD up, resulting in higher high tides and lower low tides

• When the sun and the moon are at a 90-degree angle to each other relative to Earth, the gravitational forces are not aligned, so they don’t add up

• The water is being pulled toward the moon

What is a High Tide?

• The water is being pulled toward the moon

• The water that is being pulled away from the sun

• A tide that is REALLY HIGH

• A tide that being pushed by a shark