Science

5. coherent, typically large body of matter with no definite shape.
6. gravitational curved path of an object around a point in space,
10. change in political power or organizational structures that takes place in a relatively short period of time when the population rises up in revolt against the current authorities.
11. natural phenomenon by which all things with mass are brought toward one another, including planets, stars and galaxies.
13. tendency to do nothing or to remain unchanged.

1. or energy as an attribute of physical action or movement.
2. body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.
3. time or date at which the sun crosses the celestial equator, when day and night are of equal length.
4. of the two times in the year, the summer solstice and the winter solstice, when the sun reaches its highest or lowest point in the sky at noon, marked by the longest and shortest days.
7. chart or series of pages showing the days, weeks, and months of a particular year, or giving particular seasonal information.
8. First Law of Motion-An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
9. the action of rotating around an axis or center.
12. of Universal Gravitation-a particle attracts every other particle in the universe using a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.