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ScienceSleuths

ScienceInquiry

ScienceMatters

ScienceCounts!

Review

In humans, digestion of food is completed in the

A. Mouth

B. Small intestine

C. Large intestine

D. stomach

B. Small intestine.

Rocks that have cooled from the molten state are called

A. Igneous rocks.

B. Sedimentary rocks.

C. Metamorphic rocks.

D. Precipitated rocks.

A. Igneous rocks

Which of the following factors most influences the change of

seasons?

A. Calendar month

B. Earth’s distance from the sun

C. Angle of the Earth’s axis

D. Radiation of the sun

C. Angle of the Earth’s axis

A portion of the electromagnetic spectrum that is invisible to the human eye and has the longest

wavelength is?

A. Violet.

B. Ultraviolet.

C. Infrared.

D. Green.

C. infrared

The parts of the atom located outside the nucleus of the atom

are the

A. electrons

B. quarks

C. Neutrons

D. protons

A. electrons

Which of the properties listed below is a characteristic of a

liquid but not of a gas?A. It has the ability to flow.

B. Its molecules are constantly in motion

C. It maintains its shape in an open container.

D. Its volume varies depending on temperature and pressure.

C. It maintains its shape in an open container.

When a second light bulb is wired into an electric circuit already containing one light

bulb, the first one dims. The light bulbs must be wired in a (an)

A. Series circuit.

B. Parallel circuit.

C. Open circuit.

D. Magnetic circuit.

A. Series circuit.

What is the likely cause of tectonic plate movement?

A. Gradual shrinking and cooling of the Earth.

B. Convection within the hot interior of the Earth.

C. Ocean currents scraping the Earth’s seafloor.

D. Solar energy heating the Earth’s interior.

B. Convection within the hot interior of the Earth.

Which of the following is part of the nitrogen cycle?

A. Bacteria fix nitrogen from the air for use by plants.

B. Nitrogen is a product of respiration.

C. Nitrogen is given off during photosynthesis.

D. Green plants take atmospheric nitrogen form the air for food.

A. Bacteria fix nitrogen from the air for use by plants.

In the design of a scientific experiment, the investigator considers all of the factors that

may influence the results and then plans ways to keep these factors constant. In doing

so, the investigator is engaging in the

scientific process of A. Collecting data

B. Defining operationally

C. Hypothesizing

D. Manipulating and collecting variables.

D. Manipulating and controlling variables

A mechanic must move an automobile engine from the shop floor into the

engine compartment of the car. Which simple machine would be most useful or

appropriate for this task?

A. wheel

B. pulley

C. Inclined plane

D. lever

B. Pulley

Redfish cannot be taken during certain seasons of the year. This

is due to the depletion of the breeding population by

A. Contaminants.

B. over-fishing.

C predation.

D. parasitism.

B. Over-fishing

The major function of animal epithelial (skin) cells is

A. For protective lining.

B. For movement.

C. To transport oxygen.

D. To produce bone.

A. For protective lining.

Which of the following is a step in sexual reproduction of plants?

A. Rhizome production

B. Spore production

C. Bulb production

D. Pollen production

D. Pollen production

The aorta is the largest artery in the human body

A. Originating from the left ventricle of the heart and carries blood toward the heart.

B. Originating from the left ventricle of the heart and carries blood away from the heart.

C. Originating from the right ventricle of the heart and eliminates wastes from the body.

D. Is part of the Digestive System and works with veins to carry blood through the body.

B. Originating from the left ventricle of the heart

and carries blood away from the heart.

On a color weather map, a cold front is symbolized by

A. A red line with semi-circles pointed in the direction of the movement.

B. A blue line with triangles pointed in the direction of the movement.

C. Thin black lines circling high an low pressure systems.

D. Green shading over all regions affected by it.

B. A blue line with triangles pointed in the direction of the movement.

Most of our present knowledge of Mars and Venus has been

gained by

A. Earth-bound radar mapping.

B. Earth-bound telescopes.

C. Manned spaceflights.

D. Unmanned spacecraft flights.

D. Unmanned spaceflights

Photosynthesis is

A. Carbon dioxide + water + sunlight = Glucose + oxygen

B. Carbon dioxide + water + sunlight = Glucose

C. Oxygen + glucose = carbon dioxide + water + sunlight

D. Cellular Respiration

A. Carbon dioxide + water + sunlight = Glucose + oxygen

A rolling ball will eventually come to a stop. Which of the following things will not influence the motion of a ball?

A. friction

B. time

C. Shape

D. Mass

B. Time

When using an electromagnet, which of the following energy transformations occurs?

A. Electrical-radiant-chemical

B. Magnetic-electrical-nuclear

C. Chemical-electrical-magnetic

D. Magnetic-chemical-radiant

C. Chemical-electrical-magnetic

Each living thing in a food chain plays a role in the flow of energy in an ecosystem. In a

simple food chain the rabbit eats carrots and a fox eats the rabbit. What is the primary role of

the rabbit in the food chain?

A. To form a habitat

B. To find a space to live

C. to be a source of water

D. to be a source of energy

D. To be a source of energy

Which of the following strategies is best for developing critical

thinking?

A. Constructing a cause/effect chart

B. Defining a list of prefixes & suffixes

C. Constructing a KWL chart

D. Writing definitions from a glossary

A. Constructing a cause/effect chart

A company wants to provide ID cards for its employees. Each identification number will begin with a letter of the alphabet followed by two digits. How many different ID cards can be made?

A. 1872

B. 2106

C. 2340

D. 2600

D. 2600

Supplementary angles are angles whose measures have a sum of

A. 90º

B. 360º

C. 180º

D. All angles combined

C. 180º

Which strategy would be most helpful for students to use to determine word meaning?

A. paraphrasing

B. Using context clues

C. Confirming

D. predicting

B. Using context clues