Ptolemy
The part of the moon that is seen from earth appears to be decreasing.
about 6 hours
The moon revolves around the earth. The sun shines on different parts of the moon which makes it appear to change shape.
Jupiter, Saturn, Uranus, Neptune. Made of gas and very large.
Mercury, Venus, Earth, Mars. They are small and rocky.
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Though the moon is smaller it is much closer. Therefore it has a larger impact on tides than the sun.
About 365 days.
The sun is in the center of the solar system. The planets revolve around it.
When an object spins on an axis.
Heliocentric
Occur when the moon, earth and sun are aligned. The high tides are considerably higher during this time. The sun's gravity also pulls on the ocean during this time.
When an object makes an orbit around another object.
When we cannot see the moon from earth.
Due to the gravitational pull of the moon.
Aristotle
We have day and night due to the earth spinning on it's axis as it revolves around the sun.
The earth spins on its axis every 24 hours causing approximately 12 hours of sunlight on each side.
We can only see one side of the moon because it's revolution is the same rate as the rotation.
Seasons occur on earth due to the tilt of the earth's axis.
The part of the moon that is seen from earth increases
Copernicus
The sun is substantially larger than all of the planets combined
Occur when the sun moon and earth are aligned in a triangular shape. The high tides are not as high as the spring tides during this time.
What are neap tides?
Why do we have seasons?
What is revolution?
What are the inner planets and their characteristics?
What is the heliocentric theory?
What is a waning moon?
Who's ideas did Galileo support?
Why does the moon have more of an influence on tides than the sun?
What is rotation?
How does the size of the planets compare to the sun?
Why do we experience day and night on earth?
What is a new moon?
What are the outer planets and their characteristics?
Why do we have day and night?
How long do tides last?
Why do we have tides?
What theory did Copernicus develop?
Name the planets in order from the sun
Which astronomer supported Aristotle's ideas?
Why can we only see one side of the moon?
Why do we have moon phases?
How long does it take for the earth to complete one revolution?
Which ancient astronomer was the first to develop the geocentric theory?
What is a spring tide? How does the sun affect this tide?
When the moon is waxing what does this mean?
