What is when there are two full moons in one month
100
The ________ ________ of the moon as compared to the sun produce tides on Earth
What is changing positions
100
The number of high tides per day
What is two
100
The Earth takes _______ _____ to orbit around the sun.
What is 365 days
100
Which body affects the tides?
What is the moon
200
The moon's name is..
What is Luna
200
What is a tide?
What is the rise and fall of ocean waters
200
The number of low tides per day
What is two
200
The Earth revolves at a rate of ___ _______ per revolution.
What is 24 hours
200
The difference in position of the moon during spring and neap tides
What is spring is in a straight line, neap is at a right angle
300
What is the approximate circumference of the moon?
What is 6800 miles
300
Newton's Law of Universal Gravity states that.....
What is every object in the universe attracts every other object
300
When the difference between high and low tide is the least. This occurs when the moon, Earth and Sun are aligned in a right angle and the moon is seen as a quarter-moon
What is neap tide
300
The moon takes ____ ______ to rotate around the Earth
What is 28 days
300
Diagram the Moon, Sun, and Earth at High Neap Tide
What is ninety degree angle with a bulge towards the moon.
400
When can you see the whole face of the moon?
What is during a full moon, when it is past the Earth in a straight line with the sun
400
Tides are caused by...
What is how much gravitational pull the moon has on the water on Earth
400
When the difference between high and low tide is the greatest. This occurs when the moon, Earth and Sun are in a straight line and the moon is seen as either new or full
What is spring tide
400
Which has a higher pull of gravity on the Earth: Moon or Sun?
What is the moon
400
Diagram the Earth, Sun and Moon at spring tide
What is a straight line with a bulge pulling towards the moon.
500
When there is no moon visible in the sky, what is the position of the Earth, Sun, and Moon?What is this called?
What is new moon : they are in a straight line and the moon is between the Earth and Sun
500
When is the best time for ships to enter a port? Why?
What is during high tide so they don't run into the ground
500
How often does a spring tide occur?
What is twice a month
500
Describe the differences between rotation and revolution (rotating and revolving)
What is one is a day, one is a year. Rotation, is the earth spinning on its axis. Revolution is the earth orbiting the sun.
500
Diagram High Spring, High Neap, Low Neap and Low Spring tides.