all about ice ages and how they happen
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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| Atmosphere | Scientists have closed the case: Human activity is causing the Earth to get hotter.
How: Primarily by burning fossil fuels, with a smaller contribution from deforestation.
Scientists have considered and ruled out many other explanations for why our
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| Tilt | The bottom line for the changes from season to season is the average daytime temperature. This depends on the amount of heating that the earth receives in a single day throughout the year, and this depends on how many hours the Sun is above the horizon an
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| Magnetic poles | Magnetic Reversals
Scientists tell us that our magnetic poles have reversed in the past, and that they will again. The last one occurred 780,000 years ago. The average time period between reversals is 450,000 years, but there isnât really any pattern,
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| not avalible fixing errors | not avalible fixing errors
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| not avalible fixing errors | not avalible fixing errors
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| milankovitch cycle | Milankovitch theory describes the collective effects of changes in the Earth's movements upon its climate, named after Serbian geophysicist and astronomer Milutin MilankoviÄ, who worked on it during his internment as a First World War POW. MilankoviÄ ma
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| suns magnetic flip | The sun's magnetic field changes polarity approximately every 11 years. It happens at the peak of each solar cycle as the sun's inner magnetic dynamo re-organizes itself. The coming reversal will mark the midpoint of Solar Cycle 24. Half of "solar max"
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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.
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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:
JOHNSON, ANDREW
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