Earth
This causes the Earth's seasons.
What is the tilt of the Earth?
Two days of the year when the noon sun is directly overhead
Solstice
It takes this long for the moon to revolve completely around the Earth.
What is 29 days or about a month?
This keeps the Earth and moon in their orbits.
What is "gravity" and inertia?
This word describes the Earth spinning continuously.
What is "rotating"?
Shape of Earth's orbit
ellipse
Two days per year that neither hemisphere is pointed towards or away from the sun
Equinox
Solar refers to the sun. This term refers to the moon.
What is "lunar"?
It takes this long for the Earth to complete on full rotation.
What is 24 hours?
This imaginary line goes from the North Pole to the South Pole of the Earth.
What is the "axis"?
The Earth takes this long to revolve around the sun.
What is 365 1/4 days?
The sun rises in this direction.
What is the "east"?
During this phase of the moon, we can see no light from the moon.
What is a "new moon"?
The tilt of the earth
23.5 degrees
This term is used to describe the phase of the moon when we see all of the lit side.
What is "full moon"?
When it is winter in North America, it is this in Australia.
What is "summer"?
This occurs when the moon moves between the sun and the Earth, blocking some the the sun's light.
What is a "solar eclipse"?
During this process, the moon moves through the Earth's shadow, and cannot be seen for a short time.
What is a "lunar eclipse"?
The sun appears higher in the sky during this time of year because of the tilt of the earth.
What is "summer"?
As we see less and less of the lit part of the moon, we say that it is doing this.
What is "waning"?
The imaginary line horizontally around the middle of the Earth.
What is the "equator"?
This is how the sun's rays strike the Earth at the equator
What is "directly"?
The moon affects this part of the Earth, changing it daily on our beaches.
What is the "ocean tide"?
We have this special day every 4 years in February because it takes the Earth 365 and 1/4 days to revolve around the sun.
What is "Leap Year Day"?
This type of tide occurs when the Sun, moon and Earth all line up creating the biggest difference between high and low tides
Spring Tides