important facts
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| what causes day and night on earth? | earth spinning on its axis
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| how many km per hour does a point in the equator rotate? | 1,600 km
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| what is a leap year? | a year which has 366 days instead of 365
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| how often does a leap yaer occur? | once every 4 years
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| why does a leap year happen once every 4 years? | because in a year there are 365 and 1/4 days. four 1/4's equal a day. one extra day
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| why does the eart5h have seasons? | because its axis is tilted as it moves around the sun
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| what causes the phases of the moon, tides and eclipses? | the position of the earth, moon and sun
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| how many days does it take the moon to revolve once around earth? | 27.3 dyas
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| how many days in one year on the moon? | 27.3
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| what causes the phases of the moon you see? | how much of the sunlit side of moon faces earth
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| what cause tides? | the gravity of the moon pulling the water
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| when there is a high tide on the side of earth facing the moon, why is it high tide on the side of the earth thats away from the moon at the same time? | the moons gravity pulls earth towards it a little bit also. so as the earth moves towards the moon, the water on the other side of earth is left behind.
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| what is the event when the moons shadow hits earth or the earths shadow hits the moon? | an eclipse.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
pragu :)
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