| A | B |
|---|
| rotation | spinning motion |
| revolution | spinning motion around the sun |
| What direction does the Earth rotate? | The Earth rotates from west to east |
| How long is one rotation? | 24 hours |
| Which direction does the sun appear to rise? | The sun rises from the east to west |
| Who proved the earth rotates? | Foucalt |
| Coriolis Effect | due to the earth's rotation moving substances such as wind ocen currents and missiles curve counter clockwise in the Northern Hemishphere |
| How long is one revolution? | 365 1/4 days or one year |
| How often do we have leap year | The 1/4 day adds up to one full day after four years and causes leap year |
| What is the earth's inclination? | tilt that causes the seasons |
| When the earth leans toward the sun the season is? | summer in the Northern Hemishphere |
| What date is summer? | June 21 |
| List three things the sun does on June 21 | appears high in the sky, gives us more heat, longer daytime |
| When the earth does not lean toward or away from the sun what season is it? | spring or fall |
| vertical rays | hit directly at the equator at 0 degrees latitude |
| Autominal Equinox | September 21 |
| Vernal Equinox | March 21 |
| When the earth leans away from the sun | winter |
| When is winter? | December 21 is the Winter Solstice |
| List 3 things the sun does on Dec 21? | appears lower in the sky, less heat, shorter daytime |
| Scientific names for the seasons | Summer Solstice, Winter Solstice, Vernal Equinox, Autominal Equinox |
| What is 23 1/2 degrees north latitude called? | Prime meridian |
| What is 23 1/2 degrees south latitude called? | International Date Line |
| Which tropic has thedirect rays on the first day of summer? | Tropic of Cancer |
| Which tropic has the dirct rays on the first day of winter? | Winter, the vertical rays of the sun are the furtherst south they go |
| What does Oblate Spheriod mean? | means it is flatter at the poles and bulging out at the equator |
| What is Earth's diameter at the poles | 7899 miles |
| What is Earth's diameter at the equator ? | 7927 miles |
| Why does the length of your shadow change during the day? | The length of shadows change becuse the height of the sun in the sky chnages |
| When is local noon | The shortest shadow occurs at loocal noon, when thesun is hightest in the sky |
| When is 12:00 noon? | Everywhere in the U.S. at local noon, the shadow will always point directly north |
| Where does your shadow point at local noon? | directly north |
| Where does a compass actually point? | The compass points magnetic north |
| Where is the equator? | The equator ia an imaginary line drawn aournd the earth midway btween the north and south poles |
| What star helps you find latitude? | Polaris |
| What do latitude lines look like? | Latitude lines are measured in degrees north and south of the equator |
| Where is the prime country meridian? | The prime meridian which runs through Grenwich, England is the starting point for longitude |
| What degree is the prime meridian? | The prime meridian is located at 0 degrees longitude |
| What directions are used to measure longitude lines? | longitude lines measure distances east or west of the prime meridian. They are drawn from the North to South poles |
| What degree is the North Pole? | The North Pole is 90 degrees north latitude |
| What degree is the South Pole? | The South Pole is 90 degrees south latitude |
| What degree is the equator? | The equator is 0 degrees latitude |
| What degree is the International Date Line? | The International Date Line is 180 degrees longitude |
