Elementary Science Department
Semester 1
GRADE 4
Homework (6.1)
Name:………………………………………………………………..
Date:…………………………………..
1) Choose the correct answer then fill in the corresponding bubble:
1)
2)
3)
4)
5)
6)
7)
8)
1) Earth rotates on its axis once every
24 hours. What is the result of Earth’s rotation?
The seasons
Night and day
The length of the year
All of the above
1
2) Earth is tilted on its axis. Which of these would not exist if Earth had no tilt?
gravity
seasons
Earth’s rotation
None of the above
3) Earth revolves around the sun. How long does it take for Earth to complete one
revolution?
one week
one month
one year
None of the above
4) Look at the diagram below. It shows Earth at four positions in its orbit around the sun.
At which position does the Northern Hemisphere receive the least amount of sunlight
each day?
Position I
Position II
Position III
Position IV
2
5) What is an orbit?
The distance of a planet from the sun
The path one object takes around another object in space
The speed at which a planet moves around the sun
All of the above
6) Which of the following demonstrates how a rotating object
moves?
a falling rock
a turning top
a bouncing ball
All of the above
7) Earth has seasons because
A)
B)
C)
D)
the temperature of the sun changes
the distance between Earth and the sun changes
Earth's axis is tilted as it moves around the sun
All of the above
8) Because the moon rotates once for each revolution around the Earth
A)
B)
C)
D)
3
We see some phases more than others
A different side of the moon faces Earth everyday
We never see the far side of the moon
None of the above.
2) Match:
_____ 1. A force that pulls objects toward
each other
A. Earth
_____ 2. The path that an object takes
around another object in space.
B. The sun
____ 3. Made up of hot glowing gases, mostly
helium and hydrogen.
C. Gravity
_____ 4. Made up of a rocky surface and has
no atmosphere or water.
D. Orbit
_____ 5. Made up of a rocky surface with
large oceans and thick atmosphere.
E. Moon
3) Answer the following questions:

Earth takes 24 hours to rotate around its axis. It has a tilted axis and takes 365 days
to revolve around the sun.
1. What is the effect of rotation of Earth
around its axis?
………………………………………………………………….
2. The titled axis and the revolving of Earth
around the sun causes
………………………………………………………………………………
4
4) Complete:
Hot Glowing gases
mostly helium &
hydrogen
No
Rocky surface with
thick atmosphere &
large oceans .
m
Yes
No
Rocky surface
without atmosphere
or water .
……………………………..
Yes
………………………………
5
Yes
………………………………