Across
- 3. the branch of science that deals with celestial objects, space, and the physical universe as a whole.
- 4. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
- 7. the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes.
- 9. made up of the parts of Earth where life exist
- 10. the branch of science concerned with the processes and phenomena of the atmosphere, especially as a means of forecasting the weather.
- 11. any of the almost spherical concentric regions of matter that make up the earth and its
- 13. a function of two variables is a curve along which the function has a constant value, so that the curve joins points of equal value.
Down
- 1. a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
- 2. the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes.
- 4. all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.
- 5. map
- 6. a layer of gas or layers of gases that envelop a planet, and is held in place by the gravity of the planetary body.
- 8. the science that deals with the earth's physical structure and substance, its history, and the processes that act on it.
- 12. a set of things working together as parts of a mechanism or an interconnecting network.