Worksheets2nd Science state test review
Total questions: 22
Worksheet time: 11mins
Name
Class
Date
1.
Which of these greenhouse gases in the air
will increase the most if large forests are cut
down to be used for building without
planting new trees?
will increase the most if large forests are cut
down to be used for building without
planting new trees?
a)
ozone
b)
methane
c)
water vapor
d)
carbon dioxide
2.
A student placed a rock in a graduated cylinder
containing water, causing the water level in the
cylinder to increase by 20 mL. This increase
represents the rock’s
containing water, causing the water level in the
cylinder to increase by 20 mL. This increase
represents the rock’s
a)
mass
b)
volume
c)
solubility
d)
temperature
3.
People often wear sunglasses in polar regions
because most of the sunlight that hits a
snow-covered surface is
because most of the sunlight that hits a
snow-covered surface is
a)
reflected
b)
absorbed
c)
refracted
d)
transmitted
4.
A battery-powered cart pulls an 800-gram load
across the floor. If the load were reduced to 400
grams, and the force used to move the cart
remained the same, the cart would
across the floor. If the load were reduced to 400
grams, and the force used to move the cart
remained the same, the cart would
a)
move slower
b)
move faster
c)
move at the same speed
d)
stop moving
5.
What causes the balloon to move along the string?
a)
Force from string
b)
friction between straw and string
c)
Force from escaping air
d)
weight of balloon containing air
6.
Herbivores obtain most of their energy by
a)
consuming animals
b)
consuming plants
c)
producing sugar
d)
absorbing sunlight
7.
A biological community is made up of all the
a)
populations living in an area
b)
natural resources present in an area
c)
members of a species on Earth
d)
environments on Earth
8.
If an ecosystem’s balance is disturbed by a volcanic eruption, what will most likely occur?
a)
The ecosystem will not change from its original state.
b)
The ecosystem will eventually become balanced again.
c)
The consumers in the ecosystem will begin to consume carbon dioxide.
d)
The consumers in the ecosystem will begin to produce more oxygen.
9.
Which force is represented by X?
a)
Gravity
b)
Friction
c)
Electricity
d)
Magnetism
10.
Approximately how long does it take for the Moon to complete one orbit around Earth?
a)
1 day
b)
1 week
c)
1 month
d)
1 year
11.
The layered mixture of gases surrounding Earthis called the
a)
Atmosphere
b)
Hydrosphere
c)
Lithosphere
d)
Hemisphere
12.
Over time, these organisms evolved from a common ancestor. Which process best explains why they nowhave different characteristics?
a)
extinction
b)
metabolism
c)
asexual reproduction
d)
biological adaptation
13.
In ALL organisms, which microscopic structures carry out the major life functions?
a)
chloroplasts
b)
cells
c)
wings
d)
antennae
14.
Which item in the tank produces oxygen?
a)
plant
b)
water
c)
snail
d)
rock
15.
What is the maximum mass, in grams, that could be measured by this balance?
a)
110
b)
500
c)
610
d)
1510
16.
The Moon’s surface is visible to an observer on Earth because the Moon
a)
produces its own light
b)
absorbs light from Earth
c)
reflects sunlight
d)
transmits sunlight
17.
Which type of organism converts wastes and deadmaterials into nutrients that can be used by plants?
a)
carnivore
b)
herbivore
c)
decomposer
d)
producer
18.
Which factor is most likely to cause the numberof rabbits living in an area to increase?
a)
less water
b)
fewer predators
c)
lack of shelter
d)
limited food
19.
The length of one day on Earth is determined byhow long it takes
a)
the moon to revolve once
b)
the moon to rotate once
c)
Earth to rotate once
d)
Earth to revolve once
20.
A student writes in a laboratory notebook:I placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker.What the student wrote in the laboratory notebook is an example of a(n)
a)
Prediction
b)
Observation
c)
Inference
d)
Hypothesis
21.
Between which two consecutive stages did fertilization occur?
a)
Between C and D
b)
Between B and C
c)
Between A and B
22.
What process in the water cycle changes water vapor into liquid water droplets that forms thunderstorm clouds?
a)
Evaporation
b)
Condensation
c)
Precipitation
d)
Climate
100 %
