Stars and Other Components of the Universe

Match it! Select the correct answer from the pull down...Good luck!

Which of these can be described as a system of stars, gases, dust, and other matter that orbits a common center of gravity?

Which types of stars are MOST likely to increase in brightness as they increase in temperature?

Scientists recently discovered a giant runaway star. It is 90 times larger than the sun and is very hot and blue-white in color. Why does the sun appear to be brighter than this runaway star when viewed from Earth?

Which list is correctly ordered from smallest to largest?

Stars appear to be blue, white, yellow, and red, even without the aid of a telescope. What causes the different colors of the stars?

A student is asked to compare the general characteristics of a red star and a blue star. What factual statement can the student make based solely on the color of the two stars?

A student learns that the sun is classified as a medium-size star and that many stars are much bigger and brighter. However, the student observes that other stars look very dim. Why do other stars look much dimmer than the sun?

A satellite detected a small, bright object with a fan-shaped tail. What type of object were astronomers most likely observing?