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Science Released Items. 2004. In order to turn on the light, a piece of wire needs to be connected from —. A to C A to D B to C C to D. Which of these minerals is a carbonate?. Calcite (CaCO 3 ) Galena (PbS) Gypsum (CaSO 4 ) Magnetite (Fe 3 O 4 ).

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Science released items l.jpg

Science Released Items

2004


In order to turn on the light a piece of wire needs to be connected from l.jpg

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

  • A to C

  • A to D

  • B to C

  • C to D


Which of these minerals is a carbonate l.jpg

Which of these minerals is a carbonate?

  • Calcite (CaCO3)

  • Galena (PbS)

  • Gypsum (CaSO4)

  • Magnetite (Fe3O4)


A plant s green color is due to the presence of which organelle l.jpg

A plant’s green color is due to thepresence of which organelle?

  • Chloroplast

  • Nucleus

  • Mitochondrion

  • Vacuole


Slide5 l.jpg

The diagram shows a graduated cylinder containing water. From which position will the most accurate measure of the volume of the water be made?

  • Position 1

  • Position 2

  • Position 3

  • Position 4


Which of these has the greatest influence over how big a baby elephant will grow l.jpg

Which of these has the greatestinfluence over how big a baby elephantwill grow?

  • The amount of oxygen in the air

  • The amount of food available

  • The size of the trees in the jungle

  • The type of grass on the plains


At what speed would a car have to move in order to travel 20 kilometers in two hours l.jpg

At what speed would a car have tomove in order to travel 20 kilometers in two hours?

  • 5 km/hr

  • 10 km/hr

  • 20 km/hr

  • 40 km/hr


Slide8 l.jpg

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 —

  • once a year on a day with very little vehicle traffic

  • once a day during rush hour when the most cars are on the road

  • several times a day in all kinds of weather

  • at night when the air is probably less polluted


In the food web shown which of the following consumers eats only producers l.jpg

In the food web shown, which of the following consumers eats only producers?

  • Hawk

  • Owl

  • Fox

  • Mouse


Which body in the solar system usually contains an atmosphere l.jpg

Which body in the solar system usuallycontains an atmosphere?

  • An asteroid

  • A planet

  • A meteor

  • A comet


Which of the following is used to measure the mass of an object l.jpg

Which of the following is used tomeasure the mass of an object?

  • Balance

  • Metric ruler

  • Graduated cylinder

  • Barometer


The area that shows the amplitude of the wave is l.jpg

The area that shows the amplitude of the wave is —

  • 1

  • 2

  • 3

  • 4


Which of these resources would give the most current complete and accurate information on planets l.jpg

Which of these resources would give the most current, complete and accurate information on planets?

  • Planet website by Round Rock Middle School

  • The NASA website

  • A set of general encyclopedias

  • A science book about the planets


Which of these planets in the solar system was the most recently discovered l.jpg

Which of these planets in the solarsystem was the most recentlydiscovered?

  • Mars

  • Venus

  • Jupiter

  • Pluto


Slide15 l.jpg

Electric bills are calculated based on the amount of energy consumed. Theconsumption is measured in units of —

  • newton meters

  • millijoule seconds

  • megavolt minutes

  • kilowatt hours


Which system shows a transformation from chemical to electrical and light energy l.jpg

Which system shows a transformation from chemical to electrical and light energy?

  • A car battery causes the headlights to shine.

  • A candle burns and lights up the room.

  • A display of fireworks in the night sky.

  • An avalanche rolls down a steep mountain.


Which of these would be the best model to use to study the cause of the moon s phase changes l.jpg

A.

B.

D.

C.

Which of these would be the best model to use to study the cause of the moon’s phase changes?

  • A

  • B

  • C

  • D


Slide18 l.jpg

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?

  • Burning coal produces more heat than burning wood.

  • The heat from burning coal can drive generators that produce electricity.

  • Burning coal produces sulfur dioxide which contributes to acid rain.

  • There is more coal in the earth than there is oil and gas.


Slide19 l.jpg

Which biome contains largepopulations of grazing herbivores, fewspecies of birds, and deep, rich soil?

  • A taiga

  • A tundra

  • A deciduous forest

  • A grassland


What is next in this series l.jpg

What is next in this series?

  • Habitats

  • Organisms

  • Systems

  • Organelles


Which of these is due entirely to inheritance in humans l.jpg

Which of these is due entirely toinheritance in humans?

  • Reading skill

  • Eye color

  • Endurance

  • Broken bones


Which of these is best classified as a mixture l.jpg

Which of these is best classified as a mixture?

  • Carbon dioxide

  • Water

  • Soil

  • Iron


Which of these belongs in the outermost shell energy level of an atom l.jpg

Which of these belongs in theoutermost shell (energy level) of anatom?

  • Electrons

  • Protons

  • Neutrons

  • Photons


The force that holds the planets in orbit around the sun is called l.jpg

The force that holds the planets inorbit around the sun is called —

  • motion

  • friction

  • pressure

  • gravity


How are humans classified within a food chain l.jpg

How are humans classified within afood chain?

  • Producers

  • Consumers

  • Decomposers

  • Manufacturers


The location on the track where the train has the greatest potential energy is l.jpg

The location on the track where the train has the greatest potential energy is —

  • 1

  • 2

  • 3

  • 4


Convection is the result of l.jpg

Convection is the result of —

  • currents caused by the motion of heated molecules

  • increases in the density of solids

  • colder portions of liquids rising

  • the lack of heat transfer


Slide28 l.jpg

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?

  • A chemical change

  • A temperature change

  • A phase change

  • A physical change


Slide29 l.jpg

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?

  • 46%

  • 49%

  • 56%

  • 70%


Slide30 l.jpg

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?

  • The type of seed

  • The amount of water used

  • The number of sprouts

  • The temperature of each dish


A substance made up of two or more elements that have been chemically combined is called l.jpg

A substance made up of two or more elements that have been chemicallycombined is called —

  • an atom

  • a compound

  • an element

  • a mixture


Which of the following is produced as a result of photosynthesis l.jpg

Which of the following is produced as a result of photosynthesis?

  • Heat

  • Water

  • Oxygen

  • Carbon dioxide


A proton has which of the following charges l.jpg

A proton has which of the followingcharges?

  • Negative

  • Neutral

  • Positive

  • Magnetic


Slide34 l.jpg

Which of the following lists the elements in order, from those having the least protons to those having the most protons in the atoms?

  • O, N, B, Li

  • Na, S, Al, Cl

  • O, S, Se, Te

  • Rb, K, Na, Li


Slide35 l.jpg

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 —

  • cooperation

  • competition

  • territoriality

  • parasitism


Which of the following are characteristics of the most productive ecological environment l.jpg

Which of the following arecharacteristics of the most productiveecological environment?

  • Stable temperatures and high rainfall amounts

  • Hot temperatures and low rainfall amounts

  • Cold temperatures and low rainfall amounts

  • Low temperatures and high rainfall amounts


Slide37 l.jpg

The picture shows a pond ecosystem. What would most likely happen if all the lily plants were removed from this community?

  • There would be more oxygen in the air.

  • The pond water currents would be slower.

  • There would be more kinds of animals in the pond.

  • The animals would have fewer places to hide.


The sea urchin shown has radial symmetry this means that its body parts are l.jpg

The sea urchin shown has radial symmetry. This means that its body parts are —

  • equally arranged around a central point

  • designed to function in seawater

  • likely to be reformed if any part of the body is damaged

  • able to function on land and in the water


Slide39 l.jpg

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

  • 2

  • 3

  • 4


Slide40 l.jpg

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?

  • 2CaCl → Ca + 2Cl

  • CaCl2 H2O → Ca + ClH + O2

  • CaCl2 + Cl → Ca + Cl3

  • CaCl2 → Ca + Cl2


According to this graph which of these is most important in developing the biomass of these plants l.jpg

According to this graph, which of these is most important in developing the biomass of these plants?

  • Nitrates

  • Sulfates

  • Magnesium

  • Iron


Which diagram best shows the reflection of light l.jpg

A.

B.

D.

C.

Which diagram best shows thereflection of light?

  • A

  • B

  • C

  • D


The density of an object is dependent upon the object s mass and l.jpg

The density of an object is dependent upon the object’s mass and —

  • height

  • area

  • volume

  • weight


Which of these has the most influence on ocean tides l.jpg

Which of these has the most influence on ocean tides?

  • The magnetic field of the Earth

  • Gravity between the Earth and the moon

  • Radiation from the sun

  • Electrical forces in the atmosphere


Slide45 l.jpg

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 —

  • increasing the amount of salt added to the water each day

  • cooling the salt water before watering the plants

  • adding food color to see how far the salt penetrates the plants

  • watering half the plants with pure water and half with salt water


In this food web which organism has the greatest number of food sources l.jpg

In this food web, which organism hasthe greatest number of food sources?

  • Snake

  • Hawk

  • Shrew

  • Mouse


Slide47 l.jpg

In which of the following environments would you expect to find the greatest number of different species of plants and animals per square mile?

  • An island near the South Pole

  • A wheat field in North Dakota

  • A pasture on a Virginia farm

  • A tropical rain forest in Panama


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