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Worksheets4A Science Unit 6-8
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
Non-luminous objects reflect light from others. Which one is NOT a non-luminous astronomical objects?
a)
Star
b)
Planets
c)
Comets
d)
Satellites
2.
Luminous astronomical bodies _______ light and heat.
a)
give off
b)
reflect
c)
absorb
3.
Which planet is closest to the Sun?
a)
Mars
b)
Venus
c)
Mercury
4.
______ are astronomical bodies that orbit planets.
a)
Comets
b)
Asteroids
c)
Satellites
5.
_______ orbit the Sun and have a tail that reflects the light from the Sun.
a)
Satellites
b)
Comets
c)
Constellations
d)
Asteroids
6.
The Earth takes _______ to complete its orbit around the Sun.
a)
24 hours
b)
7 days
c)
365 days
7.
It takes Earth 24 hours to rotate on an imaginary line called ______.
a)
North Pole
b)
axis
c)
equator
8.
The movement of the Earth around the Sun is what causes ___________.
a)
night and day
b)
low tide and high tide
c)
seasons
d)
storm
9.
Where can we find "igneous rocks"?
a)
on the ocean floor
b)
riverbed
c)
near a volcano
10.
Which mineral is the softest?
a)
Gypsum
b)
Diamond
c)
chalk
d)
sapphire
11.
When sand, soil, dust, dead plants and animals, etc. become layers and pressed over one another after long time, they form _______.
a)
metamorphic rocks
b)
sedimentary
c)
fossil
12.
Soil has three main layers. The top layer is made up of ______.
a)
humus, sand, and soil
b)
sand, soil, and small rocks
c)
big rocks
13.
It is a place and the living things that live there.
a)
habitat
b)
community
c)
ecosystem
14.
It is a type of ecosystem where grasses, bushes, and some trees live.
a)
mountain
b)
forest
c)
savannah
15.
It is a group of animals and plants that feed off each other.
a)
food web
b)
omnivore
c)
food chain
16.
They can make their own food.
a)
plants
b)
herbivore
c)
worms
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