Download 3-4 Astronomy Review 3

3 Grade Science
Astronomy Review 3
City Academy Science
Name: ________________________________________________________
DIRECTIONS: Below is a cumulative review of the astronomy unit. All questions must be answered
using complete sentences. Reviews completed and corrected entitle students to use their notes for
the last five minutes of the quiz. The review is due either Tuesday, March 7 with a quiz on Thursday,
March 9. Students are to study for their quiz 20 minutes each night prior to the quiz using their notes,
handouts and reviews. All of these materials can be found on the science classroom page
under the Parent Resources pull-down menu at www.cityacademyschool.org.
SHORT ANSWER: Answer each of the following questions using proper terms and
complete sentences.
Completed
on time
0 or 5
Used
complete
sentences
0 or 5
Fixed all
answers (in
red pen)
0 or 5
Handed in
day of quiz
0 or 5
1. Where is Earth located in the Solar System? Where is the Solar System located in the Milky Way Galaxy? Where
is the Milky Galaxy located in the Universe?
2. How far is Earth from the Sun? Why does the distance change? What is a Goldilocks Zone? Thoroughly label
and explain the picture below, describing Earth’s location in it.
3. What is the definition of the word universe? How big is the universe? What is the current shape and radius of the
observable universe?
4. What are some other means of space exploration beyond rockets? What is JPL and what does it do? What is the
mission of the CSTS?
5. What is a revolution? How is a planet’s orbit related to its revolution? What is the distance traveled by Earth in its
revolution? What is the length of time for one full revolution of Earth? Thoroughly label the picture below.
6. What evidence do astronomers have that the universe is getting bigger? What is the Big Bang Theory?
7. What are four similarities between the inner planets? What are four similarities between the outer planets? Why
can we assume that the outer planets would experience cooler temperatures than the inner planets?
8. What is a galaxy? What are the three different categories of galaxies? How are these types of galaxies different
from one another? How are many galaxies held together?
9. What is a star? What are most stars composed of? Where do stars form? How are stars classified or grouped?
FILL IN THE BLANKS: Using the terms below, list each
term in order from biggest to smallest by putting each
term in the triangle at its appropriate place.
Earth
Orion’s Arm
Goldilocks Zone
Milk Way Galaxy
Universe
Inner Planets
Local Group
Solar System
LABEL: Label all the arrows on the model of the Solar System below using the key provided.
SHORT ANSWER: Answer each of the following questions using proper terms and complete sentences.
10. What is a rotation? How far is Earth’s axis tilted? How did Earth’s axis become tilted? What is the length of time
for one full Earth rotation?
11. How does the locked axis of Earth effect sunlight reaching its surface? Towards what point in space does the axis
of Earth face?
12. What is the definition of solar system? How is a comet different from a moon? What type of star is located in the
Solar System?
13. What feature of the solar system divides the inner solar system from the outer? Where is the Kuiper Belt and what
is it made of?
14. What is NASA and what does it do? Why is rocketry one of NASA’s major focuses? What is escape velocity and
why is it important to NASA?
LABEL: Label all the arrows on the models below with either revolution or rotation.
LABEL: Label all the arrows on the model of Earth below using the key provided.
Tropic of Capricorn
Equator
Plane of the Elliptical
Direction of Rotation
Circle of Illumination
Tropic of Cancer
Arctic Circle
Axis
South Pole
Antarctic Circle
North Pole