Which statement best describes the geocentric model

of our solar system?

A blue shift of the light from a star indicates that the star

Base your answer to the following question on the diagram below and on your knowledge of Earth

science. The diagram represents Earth in its orbit around the Sun. Locations A through D represent four

positions of Earth in its orbit. Earth is closest to the Sun (perihelion) at position A, and farthest from

the Sun (aphelion) at position C.

At all four positions, the northern end of Earth's axis points toward

Evidence that the universe is expanding is best supported by the observation that the wavelengths of light from distant galaxies are shifted toward the

Which event occurred approximately 4.6 billion years ago?

Energy is produced within a star's core by the process of

Earth, the Sun, and billions of stars are contained within

Planets that are closest to the Sun are identified as

Compared to the other planets in our solar system, Jupiter, Saturn, and Neptune have

As a rotating cloud collapses its rate of rotation

The diagram below represents the light spectra given off by the same element as observed under two

different conditions. Spectrum A was observed when that element was heated in a laboratory.

Spectrum B shows the same element as seen in the light from a distant star.

The light spectrum observed from this distant star shows a

The model below shows the apparent path of the Sun

as seen by an observer in New York State on the first

day of one of the four seasons.

This apparent path of the Sun was observed on the first day of

One factor responsible for the strength of gravitational attraction between a planet and the Sun is the

Which event takes the most time?

Which star has a surface temperature most similar to

the surface temperature of Alpha Centauri?

The best evidence of Earth's rotation is provided by the