1. Space: The Big Picture Chap 1; Lesson 1.1
T.O.C:
Space in Perspective

2. Arrangement of (known) Universe
Earth (8,000 miles in diameter)
Solar system(w.w)- the Sun (a star) and all the planets that orbit around it
Milky Way Galaxy (the galaxy we live in)
Galaxy(w.w)- large system of stars & space objects held together by mutual gravitation (separate from other galaxies due to lots of space in between)
Universe(w.w)- all of space/cosmos and everything in it.

3. Objects in Space Orbit!
Orbit(w.w)- path one object takes around another.
Caused by the influence of gravity.
Can you name some space objects that orbit something?
Moon orbits Earth
Earth/planets orbit the Sun
Space telescopes/satellites also orbit

4. The Sky Seems to Turn as Earth Rotates
It doesn’t though. Earth is just moving.
Apparent mvmt led early astronomers to believe Earth was the center of the universe
Part of view of night sky is blocked by Earth
The moon is our closest neighbor
Constellations/stars change position in sky as Earth rotates
Constellation(w.w)- various groupings of stars that have been given names/stories & appear to make shapes.
Stars are always moving, but we’re so far away we can’t tell.
Polaris- located directly above N. pole (can tell Earth is rotating from here)
Used by sailors/navigators/ppl to figure out location/direction
Constellation Activity

5. 1.1 Review Q’s 10 pts
What is the arrangement of the universe? (in order). 4 pts
Explain what the term “orbit” means & give an example. 2 pts
What is a constellation? 2 pts
What is the name of our galaxy? 2 pts