What is comet is ball of ice and rock orbits Sun, when it comes close to Sun it melts and ice turns to gas forming a cloud/tail
400
The final stages of a stars life depends on its _________
What is mass
400
Describe what would people living on Andromeda see if they had the technology to see Earth and why
What is they would see maybe a few caveman in Africa because light takes 2.5 million years to reach Andromeda from Earth, so if they were looking now, they would actually see Earth 2.5 million years ago.
500
Earth spins _________ degrees to the _______ per _______ (unit of time).
Two properties that keep planets in orbit, and what would happen if we didn't have them
What is gravity and inertia. No gravity = planets would fly off in to space, no inertia = planets would crash in to Sun
500
Define parallax and describe how it affects what we see in the night sky on Earth
Describes the way an object seems to move when the person watching the object moves to a different place, Earth is moving so Northern Hemisphere sees different patterns of stars than Southern Hemisphere at different times of the year
500
Describe Red Shift and how it relates to the Big Bang Theory
What is Red light has longer wavelength, when astronomers observed other galaxies, they found light that was produced was red meaning galaxies are becoming further apart from each other= universe is expanding