Grade 8: Science (2002 VDOE Released Items)

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Which of these uses the force of gravity to make it move?
1. A sailboat moving across a lake
2. A snow sled going downhill
3. A bicycle rolling to a stop
4. A car making a right turn
The presence of permafrost is a characteristic of which major biome?
1. Grasslands
2. Temperate forest
3. Tundra
4. Taiga
Plants release oxygen into the air as a result of photosynthesis. Which of these do plants need for photosynthesis?
1. Hydrogen
2. Nitrogen
3. Methane
4. Carbon dioxide
1. exactly the same set-up as the first experiment
2. a container of a different size
3. a different amount of water
4. a different amount of antifreeze
1. Size of pot
2. Type of plant
3. Amount of water
4. Color of light
1. Oxygen
2. Germanium
3. Chlorine
4. Sulfur
The amount of gravitational attraction between the Earth and an object depends on the object's distance from the Earth and the object's --
1. mass
2. size
3. shape
4. state of matter
Of the following, which is the correct progression in the food chain?
1. Producers --> herbivores --> carnivores
2. Producers --> carnivores --> herbivores
3. Herbivores --> producers --> carnivores
4. Carnivores --> herbivores --> producers
Which of these are found in plant cells but not in animal cells?
1. Cell membranes
2. Endoplasmic reticulum
3. Mitochondria
4. Chloroplasts
A student predicts that more sugar will dissolve in warm water than in cold water. She puts some water in a container, adds sugar, and then stirs. The amount of undissolved sugar is then observed. When this student repeats the experiment to verify her prediction, the only thing that should change is the --
1. amount of time stirring
2. amount of sugar used
3. temperature of the water
4. amount of water used
Which of the following molecules does not contain three atoms?
The function of a cell nucleus is to --
1. direct the activities of the cell
2. digest foreign substances
3. help the cell expel waste
4. transport subtances around the cell
Which of these processes in the water cycle causes dew to form in the morning?
1. Precipitation
2. Condensation
3. Transpiration
4. Evaporation
A student conducted an experiment on plant growth that required adding about one cupful of liquid fertilizer to several plants each week. In order to accurately measure the fertilizer given to each plant, the fertilizer volume should be measured in --
1. milliliters
2. cubic feet
3. kiloliters
4. cubic meters
Early space flights were unmanned because --
1. humans could not withstand the force of takeoff
2. humans had no interest in space exploration
3. reliable life-support systems were not yet developed
4. rockets flew too fast for human survival
One way plants and animals are alike is that they both --
1. use carbon dioxide
2. make their own food
3. move to get their food
4. use oxygen
Consumers of electrical energy are billed according to how much energy they use. The unit most commonly used for measuring electrical energy consumption is the --
1. millivolt
2. ohmeter
3. newton-meter
4. kilowatt-hour
Which of these cannot be separated into its parts by an ordinary chemical or physical process?
A student determined the mass and volume of a gold ring. What physical property of the gold can be determined using these two measurements?
1. Its density
2. Its reactivity
3. Its expansion rate
4. Its melting point
Which of these best shows particles in a mixture?
Which of the following orientations of magnets would result in the greatest attraction between the two magnets?
The Earth is warmed by solar energy. How is this energy transferred from the sun to the Earth?
1. Convection
2. Radiation
3. Ultrasonic
4. Conduction
An example of kinetic energy continuously being changed to potential energy and back again might be --
1. electric charges moving in a straight path
2. a train moving down a track
3. a plate sitting on the edge of a table
4. a girl swinging on a swing
A new medication dissolves blood clots. However, if too much is used, excessive bleeding occurs. Which method should scientists use to determine the best dosage of this new medication?
1. Vary only the dosages of the medication while keeping everything else constant
2. Have the test subjects eat a wide variety of foods with the medication
3. Use people of many different ages as test subjects
4. Change the times the medication is given to determine if timing affects bleeding
In an experiment combining vinegar and baking soda, gas is given off. In this chemical reaction, the vinegar and baking soda are --
1. products
2. reactants
3. suspensions
4. elements
1. 1985
2. 1990
3. 1975
4. 1980
A wheel-and-axle is a lever that rotates around a fixed point. All of the following machines employ a wheel-and-axle except a --
1. bicycle
2. skateboard
3. crowbar
4. pencil sharpener
Scientists have been able to find no atmosphere around this planet because it has little gravity and is closest to the sun. The planet described is --
1. Earth
2. Saturn
3. Venus
4. Mercury
As a supplement to some diets, iron is taken in tablet form. The mass of iron in these tablets is often measured in --
1. milliliters
2. milligrams
3. centimeters
4. calories
Some students counted the birds in an area. They counted the number of species present and the number of birds in each species. Which of these would be best to use to report the results?
An experiment determined that 20 g of mass were gained by a mouse on a corn diet, 15 g by a mouse on a rice diet, and 18 g for the mouse on a grain diet. The corn-fed mouse started out at 95 g, the rice-fed at 98 g, and the grain-fed at 92 g. Which of the following tables describes these data and any other data which can be directly computed from these numbers?
Which amphibian is most aquatic?
1. liquid to a solid
2. solid to a gas
3. solid to a liquid
4. liquid to a gas
Which drawing shows a circuit that will cause the light to come on?
A compound is a molecule made up of atoms from at least two elements. Which of the following gases is a compound?
Which of these correctly shows how a light ray is reflected from a mirror?
1. Electrical --> mechanical --> chemical
2. Chemical --> electrical --> light
3. Heat --> chemical --> light
4. Mechanical --> heat --> chemical
In humans, which of these is required for carrying oxygen from the lungs to body cells?
1. Platelets
2. Red blood cells
3. Plasma
4. White blood cells
The only place visited by manned exploration outside Earth is --
1. the moon
2. Venus
3. the sun
4. Mars
1. hawk
2. plant
3. fox
4. rabbit
During mitosis, the doubling of chromosomes ensures that both new cells --
1. are twice the size of the parent cell
2. remain attached to each other
3. serve different functions
4. have identical genetic makeup
Many living organisms have body structures that go from very simple to very complex. Which of these places the structures in the correct order, from least complex to most complex?
1. Organ, tissue, cell, system
2. Cell, system, organ, tissue
3. System, organ, tissue, cell
4. Cell, tissue, organ, system
1. The size of the diver increases.
2. The water in the bottle becomes less dense.
3. The volume of air in the diver decreases.
4. The air in the water comes out of solution.
Which of these illustrates a predator-prey relationship?
1. A rooster fighting another rooster
2. A horse eating grass
3. An eagle catching a fish
4. A flea feeding on a dog
1. carbon-dating
2. the fossil record
3. hypotheses of scientists
4. observations of modern horses
During the process of evaporation, liquid water becomes --
1. tiny drops of water
2. atoms of hydrogen and oxygen
3. separate atoms of water
4. molecules of water vapor
Which of the following is an example of a decomposer at work in the food web?
1. A fungus growing on a log
2. A seagull catching a fish
3. A grasshopper eating leaves
4. A tree growing in a field
Because it can be transported easily and converted into other forms of energy, the energy form most commonly used in households is --
1. chemical
2. nuclear
3. heat
4. electrical

Grade 8: Science (2002 VDOE Released Items)

Multiple-Choice Exercise
Content © 2002 Commonwealth of Virginia Department of Education; Permission to Use Granted by VDOE; Author of Activity: Tami Maloney; All rights reserved.
No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

Which of these uses the force of gravity to make it move?

The presence of permafrost is a characteristic of which major biome?

Plants release oxygen into the air as a result of photosynthesis. Which of these do plants need for photosynthesis?

The amount of gravitational attraction between the Earth and an object depends on the object's distance from the Earth and the object's --

Of the following, which is the correct progression in the food chain?

**Which of these are found in plant cells but not in animal cells?**

**Which of the following molecules does not contain three atoms?**

The function of a cell nucleus is to --

Which of these processes in the water cycle causes dew to form in the morning?

A student conducted an experiment on plant growth that required adding about one cupful of liquid fertilizer to several plants each week. In order to accurately measure the fertilizer given to each plant, the fertilizer volume should be measured in --

Early space flights were unmanned because --

One way plants and animals are alike is that they both --

Consumers of electrical energy are billed according to how much energy they use. The unit most commonly used for measuring electrical energy consumption is the --

**Which of these cannot be separated into its parts by an ordinary chemical or physical process?**

A student determined the mass and volume of a gold ring. What physical property of the gold can be determined using these two measurements?

**Which of these best shows particles in a mixture?**

**Which of the following orientations of magnets would result in the greatest attraction between the two magnets?**

The Earth is warmed by solar energy. How is this energy transferred from the sun to the Earth?

An example of kinetic energy continuously being changed to potential energy and back again might be --

A new medication dissolves blood clots. However, if too much is used, excessive bleeding occurs. Which method should scientists use to determine the best dosage of this new medication?

In an experiment combining vinegar and baking soda, gas is given off. In this chemical reaction, the vinegar and baking soda are --

**A wheel-and-axle is a lever that rotates around a fixed point. All of the following machines employ a wheel-and-axle except a --**

Scientists have been able to find no atmosphere around this planet because it has little gravity and is closest to the sun. The planet described is --

As a supplement to some diets, iron is taken in tablet form. The mass of iron in these tablets is often measured in --

Some students counted the birds in an area. They counted the number of species present and the number of birds in each species. Which of these would be best to use to report the results?

Which amphibian is most aquatic?

Which drawing shows a circuit that will cause the light to come on?

A compound is a molecule made up of atoms from at least two elements. Which of the following gases is a compound?

Which of these correctly shows how a light ray is reflected from a mirror?

In humans, which of these is required for carrying oxygen from the lungs to body cells?

The only place visited by manned exploration outside Earth is --

During mitosis, the doubling of chromosomes ensures that both new cells --

Many living organisms have body structures that go from very simple to very complex. Which of these places the structures in the correct order, from least complex to most complex?

Which of these illustrates a predator-prey relationship?

During the process of evaporation, liquid water becomes --

Which of the following is an example of a decomposer at work in the food web?

**Because it can be transported easily and converted into other forms of energy, the energy form most commonly used in households is --**

Grade 8: Science (2002 VDOE Released Items)

Multiple-Choice ExerciseContent © 2002 Commonwealth of Virginia Department of Education; Permission to Use Granted by VDOE; Author of Activity: Tami Maloney; All rights reserved. No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

Which of these uses the force of gravity to make it move?

The presence of permafrost is a characteristic of which major biome?

Plants release oxygen into the air as a result of photosynthesis. Which of these do plants need for photosynthesis?

The amount of gravitational attraction between the Earth and an object depends on the object's distance from the Earth and the object's --

Of the following, which is the correct progression in the food chain?

Which of these are found in plant cells but not in animal cells?

Which of the following molecules does not contain three atoms?

The function of a cell nucleus is to --

Which of these processes in the water cycle causes dew to form in the morning?

A student conducted an experiment on plant growth that required adding about one cupful of liquid fertilizer to several plants each week. In order to accurately measure the fertilizer given to each plant, the fertilizer volume should be measured in --

Early space flights were unmanned because --

One way plants and animals are alike is that they both --

Consumers of electrical energy are billed according to how much energy they use. The unit most commonly used for measuring electrical energy consumption is the --

Which of these cannot be separated into its parts by an ordinary chemical or physical process?

A student determined the mass and volume of a gold ring. What physical property of the gold can be determined using these two measurements?

Which of these best shows particles in a mixture?

Which of the following orientations of magnets would result in the greatest attraction between the two magnets?

The Earth is warmed by solar energy. How is this energy transferred from the sun to the Earth?

An example of kinetic energy continuously being changed to potential energy and back again might be --

A new medication dissolves blood clots. However, if too much is used, excessive bleeding occurs. Which method should scientists use to determine the best dosage of this new medication?

In an experiment combining vinegar and baking soda, gas is given off. In this chemical reaction, the vinegar and baking soda are --

A wheel-and-axle is a lever that rotates around a fixed point. All of the following machines employ a wheel-and-axle except a --

Scientists have been able to find no atmosphere around this planet because it has little gravity and is closest to the sun. The planet described is --

As a supplement to some diets, iron is taken in tablet form. The mass of iron in these tablets is often measured in --

Some students counted the birds in an area. They counted the number of species present and the number of birds in each species. Which of these would be best to use to report the results?

Which amphibian is most aquatic?

Which drawing shows a circuit that will cause the light to come on?

A compound is a molecule made up of atoms from at least two elements. Which of the following gases is a compound?

Which of these correctly shows how a light ray is reflected from a mirror?

In humans, which of these is required for carrying oxygen from the lungs to body cells?

The only place visited by manned exploration outside Earth is --

During mitosis, the doubling of chromosomes ensures that both new cells --

Many living organisms have body structures that go from very simple to very complex. Which of these places the structures in the correct order, from least complex to most complex?

Which of these illustrates a predator-prey relationship?

During the process of evaporation, liquid water becomes --

Which of the following is an example of a decomposer at work in the food web?

Because it can be transported easily and converted into other forms of energy, the energy form most commonly used in households is --

Multiple-Choice Exercise
Content © 2002 Commonwealth of Virginia Department of Education; Permission to Use Granted by VDOE; Author of Activity: Tami Maloney; All rights reserved.
No commercial, for-profit use of this material is allowed. E-mail comments and questions to Tami Maloney.

**Which of these are found in plant cells but not in animal cells?**

**Which of the following molecules does not contain three atoms?**

**Which of these cannot be separated into its parts by an ordinary chemical or physical process?**

**Which of these best shows particles in a mixture?**

**Which of the following orientations of magnets would result in the greatest attraction between the two magnets?**

**A wheel-and-axle is a lever that rotates around a fixed point. All of the following machines employ a wheel-and-axle except a --**

**Because it can be transported easily and converted into other forms of energy, the energy form most commonly used in households is --**