Science Released Items

1
Science Released Items

• 2004

2
In order to turn on the light, a piece of wire
needs to be connected from

1. A to C
2. A to D
3. B to C
4. C to D

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
3
Which of these minerals is a carbonate?

1. Calcite (CaCO3)
2. Galena (PbS)
3. Gypsum (CaSO4)
4. Magnetite (Fe3O4)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
4
A plants green color is due to thepresence of
which organelle?

1. Chloroplast
2. Nucleus
3. Mitochondrion
4. Vacuole

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
5
The diagram shows a graduated cylinder containing
water. From which position will the most accurate
measure of the volume of the water be made?

1. Position 1
2. Position 2
3. Position 3
4. Position 4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
6
Which of these has the greatestinfluence over
how big a baby elephantwill grow?

1. The amount of oxygen in the air
2. The amount of food available
3. The size of the trees in the jungle
4. The type of grass on the plains

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
7
At what speed would a car have tomove in order
to travel 20 kilometers in two hours?

1. 5 km/hr
2. 10 km/hr
3. 20 km/hr
4. 40 km/hr

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
8
The quality of air is monitored by the government
to determine whether a city needs to take steps
to control air pollution. To best measure air
quality,the air should be tested

1. once a year on a day with very little vehicle
   traffic
2. once a day during rush hour when the most cars
   are on the road
3. several times a day in all kinds of weather
4. at night when the air is probably less polluted

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
9
In the food web shown, which of the following
consumers eats only producers?

1. Hawk
2. Owl
3. Fox
4. Mouse

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
10
Which body in the solar system usuallycontains
an atmosphere?

1. An asteroid
2. A planet
3. A meteor
4. A comet

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
11
Which of the following is used tomeasure the
mass of an object?

1. Balance
2. Metric ruler
3. Graduated cylinder
4. Barometer

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
12
The area that shows the amplitude of the wave is

1. 1
2. 2
3. 3
4. 4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
13
Which of these resources would give the most
current, complete and accurate information on
planets?

1. Planet website by Round Rock Middle School
2. The NASA website
3. A set of general encyclopedias
4. A science book about the planets

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
14
Which of these planets in the solarsystem was
the most recentlydiscovered?

1. Mars
2. Venus
3. Jupiter
4. Pluto

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
15
Electric bills are calculated based on the amount
of energy consumed. Theconsumption is measured
in units of

1. newton meters
2. millijoule seconds
3. megavolt minutes
4. kilowatt hours

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
16
Which system shows a transformation from chemical
to electrical and light energy?

1. A car battery causes the headlights to shine.
2. A candle burns and lights up the room.
3. A display of fireworks in the night sky.
4. An avalanche rolls down a steep mountain.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
17
Which of these would be the best model to use to
study the cause of the moons phase changes?

1. A
2. B
3. C
4. D

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
18
A group of people were concerned about a new
coal-burning power plant that might be built in
their neighborhood. What is probably their main
concern?

1. Burning coal produces more heat than burning
   wood.
2. The heat from burning coal can drive generators
   that produce electricity.
3. Burning coal produces sulfur dioxide which
   contributes to acid rain.
4. There is more coal in the earth than there is oil
   and gas.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
19
Which biome contains largepopulations of grazing
herbivores, fewspecies of birds, and deep, rich
soil?

1. A taiga
2. A tundra
3. A deciduous forest
4. A grassland

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
20
What is next in this series?

1. Habitats
2. Organisms
3. Systems
4. Organelles

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
21
Which of these is due entirely toinheritance in
humans?

1. Reading skill
2. Eye color
3. Endurance
4. Broken bones

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
22
Which of these is best classified as a mixture?

1. Carbon dioxide
2. Water
3. Soil
4. Iron

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
23
Which of these belongs in theoutermost shell
(energy level) of anatom?

1. Electrons
2. Protons
3. Neutrons
4. Photons

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
24
The force that holds the planets inorbit around
the sun is called

1. motion
2. friction
3. pressure
4. gravity

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
25
How are humans classified within afood chain?

1. Producers
2. Consumers
3. Decomposers
4. Manufacturers

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
26
The location on the track where the train has the
greatest potential energy is

1. 1
2. 2
3. 3
4. 4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
27
Convection is the result of

1. currents caused by the motion of heated molecules
2. increases in the density of solids
3. colder portions of liquids rising
4. the lack of heat transfer

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
28
If you break a piece of glass, the shape of the
glass changes, but the properties in the
fragments remain the same. Which of the following
has occurred?

1. A chemical change
2. A temperature change
3. A phase change
4. A physical change

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
29
This chart represents the type and number of
items collected in a beach cleanup. Based on the
above chart, what percentage of the total items
collected from the beaches was plastic?

1. 46
2. 49
3. 56
4. 70

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
30
Some snapdragon seeds were studied in the
experiment below. The seeds were placed in a dish
lined with a moist paper towel. Which of these is
the independent (manipulated) variable in this
experiment?

1. The type of seed
2. The amount of water used
3. The number of sprouts
4. The temperature of each dish

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
31
A substance made up of two or more elements that
have been chemicallycombined is called

1. an atom
2. a compound
3. an element
4. a mixture

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
32
Which of the following is produced as a result of
photosynthesis?

1. Heat
2. Water
3. Oxygen
4. Carbon dioxide

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
33
A proton has which of the followingcharges?

1. Negative
2. Neutral
3. Positive
4. Magnetic

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
34
Which of the following lists the elements in
order, from those having the least protons to
those having the most protons in the atoms?

1. O, N, B, Li
2. Na, S, Al, Cl
3. O, S, Se, Te
4. Rb, K, Na, Li

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
35
Lions usually live in prides made up of a few
adult females, an adult male, and some younger
lions. The females hunt together and the kill is
shared with the pride. The lions method of
hunting best illustrates

1. cooperation
2. competition
3. territoriality
4. parasitism

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
36
Which of the following arecharacteristics of the
most productiveecological environment?

1. Stable temperatures and high rainfall amounts
2. Hot temperatures and low rainfall amounts
3. Cold temperatures and low rainfall amounts
4. Low temperatures and high rainfall amounts

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
37
The picture shows a pond ecosystem. What would
most likely happen if all the lily plants were
removed from this community?

1. There would be more oxygen in the air.
2. The pond water currents would be slower.
3. There would be more kinds of animals in the pond.
4. The animals would have fewer places to hide.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
38
The sea urchin shown has radial symmetry. This
means that its body parts are

1. equally arranged around a central point
2. designed to function in seawater
3. likely to be reformed if any part of the body is
   damaged
4. able to function on land and in the water

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
39
Both light bulbs are lit in the circuit below. In
order to turn off both lights, a switch must be
installed in the circuit at the place marked

1. 1
2. 2
3. 3
4. 4

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
40
Calcium metal (Ca) can be produced by passing an
electric current through molten calcium chloride
(CaCl2). Chlorine gas (Cl2) is also formed. What
is the balanced equation for this reaction?

1. 2CaCl ? Ca 2Cl
2. CaCl2 H2O ? Ca ClH O2
3. CaCl2 Cl ? Ca Cl3
4. CaCl2 ? Ca Cl2

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
41
According to this graph, which of these is most
important in developing the biomass of these
plants?

1. Nitrates
2. Sulfates
3. Magnesium
4. Iron

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
42
Which diagram best shows thereflection of light?

1. A
2. B
3. C
4. D

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
43
The density of an object is dependent upon the
objects mass and

1. height
2. area
3. volume
4. weight

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
44
Which of these has the most influence on ocean
tides?

1. The magnetic field of the Earth
2. Gravity between the Earth and the moon
3. Radiation from the sun
4. Electrical forces in the atmosphere

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
45
John and Emily were experimenting with the
effects of road salt on plant growth. To do this,
they watered plants daily with the same amount of
salt water. They could best improve
theirexperiment by

1. increasing the amount of salt added to the water
   each day
2. cooling the salt water before watering the plants
3. adding food color to see how far the salt
   penetrates the plants
4. watering half the plants with pure water and half
   with salt water

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
46
In this food web, which organism hasthe greatest
number of food sources?

1. Snake
2. Hawk
3. Shrew
4. Mouse

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25
47
In which of the following environments would you
expect to find the greatest number of different
species of plants and animals per square mile?

1. An island near the South Pole
2. A wheat field in North Dakota
3. A pasture on a Virginia farm
4. A tropical rain forest in Panama

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25