Download NAME_______________________ Space Study Guide – Chapter 2

NAME_______________________
Space Study Guide – Chapter 2
You will need to be able to match the following words with their definitions:
axis – an imaginary line that extends through both poles of a planet
revolve – to orbit around an object
star – huge ball of superheated gases
planet – a large object that orbits a star
solar system – a group of objects that orbit a star in the center, and that star
galaxy – a huge system of gases, dust, and stars
1. Because the earth rotates around its axis, the Earth has ___
______day and night_________.
2. Stars can be classified in many ways. One way to classify a star is by its
color. What does a star’s color tell us about the star?
______Its color tells us how hot it is.____________
3. Which phase of the moon occurs approximately two weeks after a new
moon? _____________Full Moon_______________
4. Draw a picture of a waxing gibbous moon.
(See textbook page 64. Waxing gibbous is the stage between first quarter and full
moon.)
5. Draw a picture of a full moon.
(See textbook page 64.)
6. Draw a picture of a first quarter moon.
(See textbook page 64.)
7. What large object floats in space above Earth to take pictures of stars and
planets? ________Hubble Space Telescope_____________
8. Why do the positions of stars seems to change as seasons change?
_As Earth orbits the sun, we see different parts of space at different times of
the year.________
9. The sun doesn’t actually rise and set. What causes the sun to appear to rise
and set in the sky? _The rotation of Earth on its axis causes the sun to
appear to rise and set.__
10.
The groups of stars known as Ursa Major, Cygnus, and Draco are
examples of __constellations____________.
11.
We can observe bright objects in the night sky. Some of these
objects change positions, but some of them do not. If you observe a bright
object in a different position each night, it must be a ____planet______.
12.
The sun is a star made mostly of ____hydrogen_____ and
_____helium__.
Write two to three sentences to fully explain .
13.
Why does the moon seem to have different shapes, or phases?
___As the moon orbits Earth, different amounts of its lit surface can be seen.
The phases of the moon follow the same pattern about every 29 ½
days.________________________________________________________
14.
Compare how Earth rotates and how it revolves.
___Earth rotates on its axis once every 24 hours, which makes a day. Earth
revolves around the sun on a path called its orbit. It takes about 365 days,
or one year, to make a complete trip around the sun.