Download 2009 Released State Science EOG Test

NC DPI Science EOG Sample
Which path shows how humans
might get energy from the sun?
1. sun  cow  human
2. sun  cow  grass 
human
3. sun  grass  cow 
human
4. sun  grass  sheep 
cow  human
95%
0%
1
5%
0%
2
3
4
Which of the following is an
example of condensation in the
water cycle?
1. clouds forming in the
atmosphere
2. drops of water falling
through the air
3. puddles disappearing on a
hot day
4. streams flowing into rivers
68%
18%
9%
1
2
3
5%
4
A meteorologist records the amount of sunshine, rain,
snow, and other meteorological events of a region
over a long period of time. Which of the following is
he most likely observing?
1.
2.
3.
4.
68%
atmospheric pressure
climate
precipitation
weather
18%
9%
1
5%
2
3
4
Why do large trees have a difficult
time living in a tundra?
1. A tundra is too hot for trees
to grow large.
2. Animals that live in a tundra
destroy most vegetation.
3. Flooding occurs too often in
a tundra for large trees to
grow.
4. The soil in a tundra is too
poor for large trees to grow.
43%
33%
14%
10%
1
2
3
4
Which organisms are producers?
1.
2.
3.
4.
algae
frogs
insects
snakes
73%
18%
9%
0%
1
2
3
4
What is a likely consequence of
cutting down rain forests?
1. a reduction in the amount of
air pollution on Earth
2. an increase in the number of
plants living on Earth
3. a reduction in the variety of
organisms living on Earth
4. an increase in the number of
arctic ecosystems on Earth
73%
9%
1
14%
5%
2
3
4
Which effect does a decrease in
sunlight have on a pond ecosystem?
70%
1. an increase in oxygen
levels
2. a decrease in the
nitrogen levels
3. an increase in the algae
4. a decrease in the algae
population
10%
1
10%
10%
2
3
4
Different types of birds within an environment
may feed on different types of organisms.
What is a benefit of this type of interaction?
1. It allows different birds to
build better nests.
2. It reduces competition
between different birds.
3. It causes different birds to
reproduce more often.
4. It allows different birds to
escape from predators.
61%
39%
0%
1
0%
2
3
4
A species of giant pandas live only in central China.
Bamboo, a tall, green tropical plant, is the main food
source for these animals. Large areas of bamboo are
being cut down in central China to make room for
growing other crops.
What will most likely happen to these giant pandas?
1. They will become
endangered or extinct.
2. They will migrate to warmer
areas of China.
3. They will become
carnivores.
4. They will begin to live in
caves.
90%
0%
1
2
5%
3
5%
4
Where will wind most likely cause
erosion?
1.
2.
3.
4.
73%
swamps
forests
grasslands
deserts
14%
5%
1
2
9%
3
4
In which location along a river is erosion
most likely to be the greatest?
1. at the widest part
2. at the flattest part
3. at the place with the
fastest flow
4. at the place with the
fewest rocks
45%
23%
23%
9%
1
2
3
4
Which best explains how soil is
built up in flood plains?
1. Farmers add fertilizer, which
makes new soil.
2. Plants break down into
compost, which makes soil.
3. Sediment is deposited by
rivers during floods.
4. Soil gets used up and the
land becomes a desert.
45%
45%
5%
1
5%
2
3
4
What are scale models best used
to identify?
1.
2.
3.
4.
68%
areas of high pollution
animal habitats
weather patterns
landforms
23%
9%
0%
1
2
3
4
Which process changes water from
a liquid to a gas?
1.
2.
3.
4.
82%
precipitation
evaporation
cooling
condensation
14%
5%
0%
1
2
3
4
Two air masses with large differences in air
pressure are near one another. What weather
condition will most likely exist between the
two air masses?
1. low humidity
73%
2. high winds
3. freezing temperature
4. clear skies
18%
5%
1
5%
2
3
4
Which best describes how air pressure can
be affected on hot summer days?
40%
1.
2.
3.
4.
The air expands and becomes less
dense, creating areas of low pressure.
The air expands and becomes less
dense, creating areas of high pressure.
The air expands and becomes more
dense, creating areas of low pressure. 15%
The air expands and becomes more
dense, creating areas of high pressure.
1
25%
20%
2
3
4
A student’s school is located in a valley, and her house is on a
nearby mountain. She wonders whether the average amount
of rainfall at her school is different from the average amount at
her house. She investigates by measuring the rainfall in each
location. What tool will the student need to collect the
information she needs?
1.
2.
3.
4.
a thermometer
a barometer
a hygrometer
a rain gauge
75%
15%
5%
1
5%
2
3
4
A dog runs 6 meters in one second. By the end of the
next second, the dog has traveled an additional 4
meters. Which best describes the motion of the dog
during the two seconds?
1.
2.
3.
4.
The dog slows down.
The dog comes to a stop.
The dog changes in mass.
The dog changes direction.
73%
18%
9%
0%
1
2
3
4
In order for a pulley to work properly,
it must be able to overcome which
force?
77%
1.
2.
3.
4.
electricity
gravity
light
heat
14%
9%
0%
1
2
3
4
Which best describes how forces must
interact for a kite to sail up into the air?
1. The force of gravity must be equal
to the force of the wind.
2. The force of gravity must be
greater than the force of the wind.
3. The force of the wind must be
greater than the force of gravity.
4. The force of the person flying the
kite must be equal to the force of
the wind.
95%
5%
1
0%
2
0%
3
4
What is the most likely reason cars are
designed with smooth surfaces?
1.
2.
3.
4.
to overcome gravity
to stop easier
to reduce air resistance
to keep the engine cool
64%
32%
5%
1
2
0%
3
4
How do desert animals get the
water that they need to live?
1. They get water from the
food they eat.
2. They get water from
streams and rivers.
3. They store water
underground when it
rains.
57%
33%
10%
1
2
3
How do decomposers help an
ecosystem?
59%
1. They add water to the
soil.
2. They make food for
animals to eat.
3. They cause dead plants
and animals to become
part of the soil.
32%
9%
1
2
3
How does light, temperature, and
soil composition influence most
land ecosystems?
1. They cause the ecosystem to
become extinct.
2. They determine the types of
plants and animals in the
ecosystem.
3. They cause water in the
ecosystem to become polluted.
75%
15%
10%
1
2
3
Which best describes a landslide?
1. erosion caused by gravity
2. erosion caused by wind
3. erosion caused by a river
41%
36%
23%
1
2
3
Besides providing Earth with fresh water,
how else is the water cycle important to
Earth?
1. It keeps water from
freezing in the ocean.
2. It helps prevent acid
rain in the mountain.
3. It helps change the
shape of mountains
and canyons.
64%
18%
1
18%
2
3
When will clouds most likely form?
1. when air becomes dry
2. when condensation
occurs
3. when runoff causes
flooding
81%
19%
0%
1
2
3
What has the most effect on the
speed of wind?
85%
1. humidity
2. temperature
3. air pressure
15%
0%
1
2
3
A car travels 200 km in 2 hours. If speed
= distance divided by time, what is the
average speed of the car?
1. 100 km/hr
2. 200 km/hr
3. 400 km/hr
95%
5%
1
2
0%
3
Two dogs are pulling on the same shoe,
but the shoe stays in the same place.
What is happening?
1. One dog is pulling with
a greater force.
2. Both dogs are pulling
with the same force.
3. Both dogs are pulling
the shoe in the same
direction.
100%
0%
1
0%
2
3
Three students each build a model car to
race down an inclined plane. For the race to
be fair, what must be true about each car?
1. They all should be the
same weight.
2. They all should have
the same size tires.
3. They all should be the
same length.
68%
27%
5%
1
2
3
This diagram shows a ball rolling down an
inclined plane. The position of the ball is
labeled for each second it travels.
Which best
describes the
motion of the ball?
1.
2.
3.
4.
getting faster each second
getting slower each second
maintaining the same motion
constantly changing direction
90%
5%
1
2
5%
3
0%
4