Science Review

Nature of Science

Physical Science

Earth and Space

Living Things

Vocabulary

100

Which of the following is an observation rather than an opinion?

A. Lime juice is great for removing rust.

B. Bleach leaves a fresh scent when it is used to remove spots.

C. An apple is a solid and orange juice is a liquid.

D. In a lab, it is simple to measure the mass of an object.

C. An apple is a solid and orange juice is a liquid.

100

A box is on a table , not moving. Which of the following statements best explain what keeps the box from moving?

A. Gravity pulls up the box.

B. The table pushes up on the box.

C. Friction keeps the box from moving.

D. All of the forces on the box are balanced.

100

At the bottom of a very tall mountain, a gentle rain is falling. The mountainside is covered by clouds, and the peak cannot be seen. What kind of weather is most likely happening at the top of the mountain?

A. It is snowing

B. It is raining

C. There is a tornado

D. There is a flash flood

A. It is snowing

100

Charlie just ate lettuce in a salad. As the lettuce moves from Charlie's mouth, it travels along the digestive track where many process occur. Which organ sends chemicals that aid in digestion to the small intestine?

A. stomach

B. pancreas

C. kidneys

D. brain

B. pancreas

100

liquid changing to a gas

A. condensation

b. evaporation

c. melting

D. freezing

b. evaporation

200

Why is it important to write detailed step by step directions when writing a procedure?

A. to help organize the data.

B. To help design a better experiment

C. To make it possible for others to repeat the experiment

D. To be creative with the experiment

C. To make it possible for others to repeat the experiment

200

Which action transforms electrical energy into mechanical energy?

A. cooling a room with a ceiling fan

B. lighting a room with a table lamp

C. warming bread in a small oven

D. playing music on a large radio

A. cooling a room with a ceiling fan

200

When the moon is in the first quarter phase of the lunar cycle, how much of the moon can be seen from the Earth?

A. abouth one-fourth

B. about half

C. about three-fourths

D. the entire moon

B. about half

200

The stem provides structure and support to plants. Which animal part has a similar role?

A. brain

B. heart

C. lung

D. skeleton

200

an asteroid is a

A. rock that is created in volcanos

B. a rock made of ice found in space

C. a rock found in space

D. a rock that orbits the moon

C. a rock found in space

300

Which of the following best explains how science is practiced?

A. Science does not always follow the scientific method and it never uses empirical evidence.

B. Science does not always follow the scientific method, but it always uses observations and empirical evidence.

C. Science use different methods to answer questions but always use the same experiments.

D. Science always follow the scientific method, and never uses observations and empirical evidence.

B. Science does not always follow the scientific method, but it always uses observations and empirical evidence.

300

A student starts a ball rolling down a hill. The ball rolls faster as it goes down the hill, even though no one is pushing it anymore. Why does the ball move faster?

A. The ball is losing its energy, so it moves faster.

B. The initial force is still at work, so the ball moves faster.

C. Another force is acting on the ball, so the ball moves faster.

D. The creates its own energy, so the ball moves faster.

C. Another force is acting on the ball, so the ball moves faster.

300

Which type of rocks form as a result of an igneous rock undergoing heat and pressure?

A. igneous rock

B. sedimentary rock

D. metamorphic rock

C. lava rock

D. metamorphic rock

300

Which part of the plant develops inside the ovary?

A. pistil

B. petal

C. seed

D. stamen

C. seed

300

the male part of a flower

A. stigma

B. stamen

C. ovary

D. style

B. stamen

400

A student wants to which materials can be separated from sand using a magnet. Before doing the investigation , the students makes four equal piles of sand. Pile 1 contains sand and salt, Pile 2 contains sand and gravel, Pile 3 contains sand and iron filings and Pile 4 contains sand only. Which pile is the control group.

A. Pile 1

B. Pile 2

C. Pile 3

D. Pile 4

400

Jonathan bought a cold bottle of water and placed the bottle on a bench. After a few minutes there were drops of water dripping sown the side of the bottle. What caused the drops of water to appear on the bottle?

A. The ice in the water melted and dripped down the side of the bottle.

B. the Cold water warmed up causing excess water to drip down the side of the bottle.

C. Water vapor condensed on the inside of the bottle and dripped down the side of the bottle.

D. Water vapor from the air condensed on the cold bottle and dripped down the side of the bottle.

400

After rubbing quartz and calcite together, Kim observes that the quartz scratches the calcite. What physical characteristic is Kim most likely trying to investigate by scratching these two minerals together.

A. clevage

B. luster

C. hardness

D. streak

C. hardness

400

Chameleons are reptiles that can change the color of their skin. Which example would not be a benefit of this characteristic?

A. to help them hunt for food

B. to help them attract a mate

C. to help them climb trees

D. to help them hide from predators

C. to help them climb trees

400

a material that does not conduct electricity

A. conductor

B. metal

C. copper

D. insulator

500

Connie wants to know what type of objects would conduct electricity. The following are a list of items she is going to test: safety pin, rubber band and plastic straw

Her experiment set up included a circuit with wires connecting a 45-Watt light bulb. Which of the following is true?

A. There are not enough independent variables.

B. In order for the experiment to be accurate, all aspects of the experiment need to remain constant except for the independent variable.

C. The independent variables need to be measured with the same device, under the same conditions.

D. The wattage of the light bulb needs to be changed with each object.

B. In order for the experiment to be accurate, all aspects of the experiment need to remain constant except for the independent variable.

500

Kim placed sealed bottles of hot water in the refrigerator. After several hours, Kim checked on the bottles and found that the sides of the bottles had caved in slightly. Why did this occur?

A. Some tea escaped the bottles as they cooled?

B. Some hot gas escaped the bottles as they cooled.

C. The volume of the gas in the bottles decreased as it cooled.

D. The volume of the water in the bottles decreased as it cooled.

C. The volume of the gas in the bottles decreased as it cooled.

500

Which of the following processes takes one year to complete?

A. Earth completes one full rotation on its axis.

B. Earth completes one full revolution around the moon.

C. Earth completes one full rotation around the sun.

D. Earth completes one full revolution around the sun.

500

Arctic foxes grow new fur for different seasons. Many organisms in nature also undergo changes of covering according to their environment. These changes are examples of which survival trait?

A. adaptations

B. hibernation

C. metamorphosis

D. migration

A. adaptations

500

coal, natural gas and oil are examples of

A. renewable energy

B. nonrenewable energy

C. kinetic energy

D. potential energy

B. nonrenewable energy