| A | B |
|---|
| LITHOSPHERE | RIGID OUTER SHELL OF THE EARTH CONSISTING OF THE CRUST AND PART OF THE UPPER MANTLE |
| PERIHELION | POINT IN THE ORBIT OF A PLANET IN WHICH IT IS CLOSEST TO THE SUN |
| WHAT DETERMINES SPEED NEEDED TO KEEP A SATELLITE IN ORBIT AROUND THE EARTH? | ALTITUDE |
| GRAVITY | THE FORCE OF ATTRACTION BETWEEN ALL OBJECTS IN THE UNIVERSE |
| PRECESSION | WHAT IS THE WOBBLING OF THE EARTH ON IT'S AXIS CALLED? |
| THE MASSES AND DISTANCE BETWEEN TWO OBJECTS | WHAT DETERMINES THE FORCE OF GRAVITY? |
| LANDSTAT SATELLITE | ORBITS THE EARTH IN A POLAR ORBIT |
| LIQUID IRON IN THE EARTH'S OUTER CORE | SOURCE OF MAGNETIC FIELD? |
| 90 DEGREES | ANGLE OF SUN'S RAYS? |
| WHAT ARE LANDSTAT SATELLITES USED FOR? | STUDYING THE EARTH'S SURFACE |
| HOW MANY TIME ZONES IS THE EARTH'S SURFACE DIVIDED INTO? | 24 |
| LATTITUDE | ANGULAR DISTANCE NORTH TO SOUTH OF THE EQUATOR |
| LONGITUDE | ANGULAR DISTANCE EAST OR WEST OF THE PRIME MERIDIAN |
| SUMMER SOLSTICE | BEGINNING OF SUMMER |
| WINTER SOLSTICE | BEGINNING OF WINTER |
| AUTUMNAL EQUINOX | BEGINNING OF THE FALL SEASON |
| VERNAL EQUINOX | BEGINNING OF THE SPRING SEASON |
| DAYLIGHT SAVINGS TIME | SYSTEM IN WHICH CLOCKS ARE SET ONE HOUR AHEAD OF STANDARD TIME FROM APL-OCT |
| SATELLITE THAT IS ALWAYS IN ORBIT ABOVE THE EARTH'S EQUATOR? | GEOSYNCHRONOUS |
| DENSITY | MASS PER UNIT VOLUME |
| MASS | MATTER THAT A SUBSTANCE HAS |
| VOLUME | SPACE AN OBJECT OCCUPIES |
| MANTLE | LAYER THAT MAKES UP NEARLY TWO THIRDS OF THE EARTHS MASS? |
| A PERSON CROSSING THE INTERNATIONAL DATE LINE GAINS OR LOSES HOW MANY HOURS? | 24 |
