The Moon's gravitational pull.
What is the primary cause of tides?
23.5 degrees
How many degrees does Earth's tilt on its axis?
During this time of year, shadows are longer.
How long are shadows in the winter?
Because the Moon reflects light from the Sun.
Why does the Moon appear illuminated at night?
This is the main source of energy on Earth.
What is the Sun?
This type of tide occurs during the first and third quarter moon phases.
When do neap tides occur?
400 times bigger and 400 times further away.
How does the Sun's distance and size compare to the Moon?
It would be summer in the southern hemisphere.
What season is it in the southern hemisphere when it's winter in the northern hemisphere?
During this phase, half of the Moon is illuminated on the right side.
What is the first quarter Moon phase?
For this to happen, we had to set the radiometer at a greater distance.
How did we slow down the radiometer spin in our lab?
This type of tide occurs when the Sun, Earth, and Moon are all aligned.
When do spring tides occur?
When Earth turns on its axis, it causes this to occur.
What causes night and day on Earth?
We would experience hotter weather all year round at this location.
What type of weather do we experience when we're near the equator?
When more than half of the Moon is illuminated on the left hand side.
What is the waning gibbous phase?
It would look like this.
What does a solar eclipse look like?
During this phase of the Moon, low tides are not so low.
What type of low tides occur during a first or third quarter Moon phase?
We do this because there are not exactly 365 days every year.
Why do we have leap years?
or
Why do we add an extra day to the calendar every four years?
Shadows are at their shortest at noontime at this time of year.
What is summer?
This phase occurs when less than half of the Moon illuminated on the right and side.
What is the waxing crescent phase?
It would appear due south at its highest altitude at midnight in the northern hemisphere.
Where would a Full Moon appear at midnight?
Because it takes the Earth time to catch up to the Moon's original position in its orbit.
Why do high or low tides occur later around the same time the next day?
By the Earth rotating on its axis, the Sun appears to do this.
Why does the Sun appear to move across the sky?
Shadows show their greatest contrast in length during this time of year.
What is summer?
During this eclipse, the Moon is completely in the Earth's shadow.
What is a Lunar Eclipse?
THE DAILY DOUBLE (Value X 2)
It could occur as soon as 2 weeks later.
How long after a lunar eclipse could a solar eclipse occur?