Fill in the blank. 1. The sun's keeps planets in our solar system in orbit around the sun.
2. Comets are examples of bodies that complete parabolic or orbits.
3. The orbits of all the planets in the solar system are slightly elliptical with the
exception of
4. Kepler's laws describe how objects move through space; laws describe
why objects move in this way.
Respond to the following based on your reading.
5. Describe the differences between a geocentric model and heliocentric model.
What model is the current Sun-Earth-Moon System based on?

Ahigh school teacher wants to study the seating habits of students in the cafeteria to determine if students sit in the same seats or change seats from day to day. she sits in the cafeteria for several days, and without interacting with the students, records where they sit each day. what is a potential benefit of this type of research? there is an independent variable. there is a dependent variable. the researcher can gain personal information about an individual. the participants act normally. the information can be gathered over a period of several years.