Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
77 Cards in this Set
- Front
- Back
|
Under natural conditions, large quantities of organic matter decay after each year's plants growth has been completed. As a result of such conditions...
|
Soil maintain their fertility
|
|
|
The thin clear layer that forms the outer coat of the eyeball is called the...
|
Cornea
|
|
|
The most likely reason why dinosaurs became extinct was that they...
A. Were killed by erupting volcanoes. B. Were eaten as adults by the advancing mammalian groups. C. Failed to adapt to a changing environment. D. Killed each other in combat. |
C. Failed to adapt to a changing environment.
|
|
|
Which of the following is a chemical change?
A. magnetizing a rod of iron. B. Burning one pound of coal. C. Mixing flake graphite with oil. D. Vaporizing 1g of mercury in a vaccum. |
B. Burning one pound of coal.
|
|
|
In the process of manufacturing foods, plants...
A. Create energy. B. Destroy energy. C. Store energy of the sun. D. Do not need energy of the sun. |
C. Store energy of the sun.
|
|
|
One celled animals belong to the group of living things known as...
|
Prozoa
|
|
|
Spiders can be distinguished from insects by the fact that spider have...
|
four pairs of legs
|
|
|
An important ore of uranium is called...
|
pitchblende
|
|
|
Of the following, the lightest element on earth is...
A. Hydrogen B. Oxygen C. Helium D. Air |
A. Hydrogen
|
|
|
Of the following gases in the air, the most plentiful is...
A. Argon B. Oxygen C. Nitrogen D. Carbon Dioxide |
C. Nitrogen
|
|
|
When two forces act on an object in the same direction, the resultant force is equal to the...
|
Sum of the forces
|
|
|
Of the following types of clouds, the ones that occur at the greatest altitude are called...
|
Cirrus
|
|
|
A new drug for treatment of tuberculosis was being tested in a hospital. Patients in group A actually received doses of the new drug; those in group B were only given sugar pills. Group B represents a(n)..
|
Experimental Control
|
|
|
Of the following, the simple machine that provides a mechanical advantage of 1 is the ...
|
Single Fixed Pulley
|
|
|
Radium is stored in lead containers because...
|
The lead absorbs the harmful radiation.
|
|
|
The type of joint that attaches the arm to the shoulder is known as...
|
Ball and Socket
|
|
|
Limes were eaten by British sailors to...
A. Justify their nickname "limeys" B. Pucker their mouths to resist the wind. C. Satisfy their craving for something acidic. D. Prevent Scurvy |
D. Prevent Scurvy
|
|
|
How many hours does it take for the earth to rotate 45 degrees?
|
3 hours
|
|
|
Of the following glands, the one that regulates the metabolic rate is the...
A. Adrenal B. Thyroid C. Salivary D. Thymus |
B. Thyroid
|
|
|
Of the following are amphibia EXCEPT the...
A. Salamander B. Frog C. Lizard D. Toad |
C. Lizard
|
|
|
Of the following planets, the one that has the shortest revolutionary period around the sun is...
A. Earth B. Jupiter C. Mercury D. Venus |
C. Mercury
|
|
|
The rate of doing work in known as...
|
Power
|
|
|
A circuit breaker is used in man homes instead of a...
|
fuse
|
|
|
What is the name of the negative particle that circles the nucleus of the atom?
|
Electron
|
|
|
Which of the following rocks can be dissolved with a weak acid?
A. Sandstone B. Gneiss C. Granite D. Limestone |
D. Limestone
|
|
|
Lack of iodine is often related to which of the following disease?
A. Beriberi B. Scurvy C. Rickets D. Goiter |
D. Goiter
|
|
|
An eclipse of the sun throws the shadow of the...
A. Earth on the moon B. Moon on the Earth C. Moon on the Sun D. Earth on the Sun |
B. Moon on the Earth
|
|
|
Citrus fruit include...
A. Apples B. Bananas C. Oranges D. Peaches |
C. Oranges
|
|
|
What temperature is shown on a Fahrenheit thermometer when a centigrade thermometer reads 0 degrees?
A. -40 B. -32 C. 0 D. 32 |
D. 32
|
|
|
The major chemical constituent of a cell by weight, is...
A. Protein B. Ash C. Water D. Carbohydrates |
C. Water
|
|
|
Which of the following is NOT a viral disease?
A. Measles B. Mumps C. Smallpox D. Syphilis |
D. Syphilis
|
|
|
Alcoholic beverages contain...?
A. Wood Alcohol B. Isopropyl Alcohol C. Glyceryl Alcohol D. Grain Alcohol |
D. Grain Alcohol
|
|
|
The air around us is composed mostly of...?
A. Carbon B. Nitrogen C. Hydrogen D. Oxygen |
B. Nitrogen
|
|
|
The process that is responsible for the continuous removal of carbon dioxide from the atmosphere..
|
Photosynthesis
|
|
|
Ringworm is cause by a(n)....?
A. Algae B. Fungus C. Bacterium D. Protozoan |
B. Fungus
|
|
|
Light passes through the crystalline lens in the eye and focuses on the ....?
A. Cornea B. Lens C. Pupil D. Retina |
D. Retina
|
|
|
Saliva contains an enzyme that acts on...?
A. Carbohydrates B. Proteins C. Minerals D. Vitamins |
A. Carbohydrates
|
|
|
The vitamin that helps coagulation of the blood is...?A. Vit C
B. VIt E C. Vit D D. Vit K |
D. Vit K
|
|
|
the part of a ship that gives it stability by lowering the center of gravity...
|
Keel
|
|
|
To reduce soil acidity, a farmer should use...?
A. Lime B. Phosphate C. Manure |
A. Lime
|
|
|
What mineral is restored to the soil by plants of the pea and bean family?
|
Nitrates
|
|
|
Bacteria of decay help...?
A. Deplete soil B. Enrich soil C. Form Oxygen D. Form Water |
B. Enrich Soil
|
|
|
Of the following, the food that contains the largest amount of Vitamin C is...?
A. Carrots B.Sweet Potatoes C. Lima Beans D. Tomatoes |
D. Tomatoes
|
|
|
The cyclotron is used to ...?
A. Measure radioactivity B. Measure the speed of the earth's rotation C. Split Atoms D. Store radioactive energy |
C. Split Atoms
|
|
|
The earth completes one trip around the sun approximately every...?
A. 24 hours B. 52 Weeks C. 7 Days D. 30 Days |
B. 52 weeks
|
|
|
A person is more buoyant when swimming in saltwater than in freshwater because...?
A. He keeps his head out of saltwater B. Salt coats his body with a floating membrane C. Saltwater has greater tensile strength D. Saltwater weighs more than an equal volume of freshwate |
D. Saltwater weighs more than an equal volume of freshwater.
|
|
|
A volcanic eruption is caused by?
A. Sunspots B. Pressure inside the earth? C. Nuclear Fallout D. Boiling Lava |
B. Pressure inside the earth
|
|
|
The scientific name of an organism consists of its...?
A. Family and Class B. Genus and Species C. Order and Family D. Species and Kingdom |
B. Genus and Species
|
|
|
The energy in the storage battery of a car is transformed from ....?
A. Chemical to electrical energy B. Electrical to mechanical energy C. Heat to mechanical energy D. Mechanical to electrical energy |
A. Chemical to Electrical Energy
|
|
|
A yardstick can usually be balanced by placing a finger beneath the point marked?
A. 14 in. B. 16 in. C. 18 in. D. 20 in |
C. 18 in.
|
|
|
When two forces act on an object in opposite directions, the resultant force is equal to the ...?
A. Difference between the forces B. Ratio of the forces C. Product of the forces D. Sum of the forces |
A. Difference between the forces
|
|
|
The moon is a ...?
A. Start B. Satellite C. Planetoid D. Planet |
B. Satelite
|
|
|
Which one of the following is not a a fruit?
A. Potato B. Tomato C. Cucumber D. Green Pepper |
A. Potato
|
|
|
The hammer, anvil, and stirrup bones lie in the?
|
Ear
|
|
|
Of the following, a condition NOT associated with heavy cigarette smoking is...
A. Shorter life span B. Slowing of the heartbeat C. Cancer of the lung D. Heart disease |
B. Slowing of the heartbeat
|
|
|
You are most likely to develop hypothermia when..
A. It is very hot and you have nothing to drink B. You are bitten by a rabid dog C. You fall asleep in the sun D. It is very cold and your clothes are wet |
D. It is very cold and your clothes are wet
|
|
|
If you are caught away from home during a thunderstorm, the safest place to be is
A. in a car B. under a tree C. in an open field D. at the top of a small hill |
A. in a car
|
|
|
During a thunderstorm, we see a lightning bolt before we hear the sound of the accompanying thunder chiefly because the ...
A. Eye is more sensitive than the ear B. Wind interferes with the sound of the thunder C. Storm may be very far away D. Speed of light is much greater than the speed of sound |
D. Speed of light is much greater than the speed of sound
|
|
|
The Kelvin (K) unit is used to measure what?
|
Temperature
|
|
|
The numbers of degrees on the Fahrenheit thermometer between the freezing point and the boiling point of water is?
A. 100 degrees B. 212 degrees C. 180 degrees D. 273 degrees |
C, 180 degrees
Water boils at 212 degrees Fahrenheit and freezes at 32 degrees Fahrenheit. |
|
|
An observer on Earth sees the phases of the moon because the...
|
Moon revolves around the sun.
|
|
|
Which of the following diseases in NOT caused by a pathogenic bacteria?
A. Rabies B. Tetanus C. Typhoid Fever D. Tuberculosis |
A. Rabies
Rabies is caused by a virus |
|
|
A vector is used to represent force. The length of the vector indicates its....
|
magnitude
|
|
|
Of the following, the statement that best describes a "high" on a weather map is that air...
A. extends farther up than normal B. pressure is greater than normal C. Temperature is higher than normal D. moves faster than normal |
B. Pressure is greater than normal
|
|
|
The smallest particle of gold that still retains the characteristics of gold is a(n)..
A. Molecule B. Proton C. Electron D. Atom |
D. Atom
|
|
|
Narcotics may be dangerous if used without supervision, but they are useful in medicine because they..
A. Increase production of red blood cells B. Kill bacteria C. Relieve pain D. Stimulate the heart |
C. Relieve pain
|
|
|
The primary reason why fungi are often found growing in abundance deep in the forest is that ...
A. It is cooler B. It is warmer C. They have little exposure to sunlight for photosynthesis D. They have a plentiful supply of organic matter |
D. They have a plentiful supply of organic matter
|
|
|
The presence of coal deposits in Alaska shows that at one time Alaska
A. Had a tropical climate B. Was covered with ice C. Was connected to Asia D. was formed by volcanic action |
A. Had a tropical climate
|
|
|
If a person has been injured in an accident and damage to the back of the neck is suspected, it is best to..
A. Roll the person over so that he does not lie on his back B. rush the person to the nearest hospital C. force the person to drink water to replace body fluids D. Wait for professional help |
D. Wait for professional help
|
|
|
A 1,000-ton ship must displace a weight of water equal to ...
A. 500 tons B. 1,500 tons C. 1,000 tons D. 2,000 Tons |
C. 1,000 Tons
|
|
|
Vitamin C is also known as?
|
Ascorbic Acid
|
|
|
The temperature of the air falls at night because the earth loses heat by ..
A. Radiation B. Conduction C. Convection D. Rotation |
A. Radiation
|
|
|
The normal height of a mercury barometer at sea level is
|
30 inches
|
|
|
Nitrogen-fixing bacteria are found in nodules on the roots of the
A. Beet B. Potato C. Carrot D. Clover |
D. Clover
|
|
|
The Vascular system of the body is concerned with?
|
The circulation of the blood
|
|
|
n which of the following types of rocks are most fossils found?
A. Igneous B. Metamorphic C. Sedimentary D. Volcanic |
C, Sedimentary
|
|
|
If you wish to cut down on saturated fats and cholesterol in your diet, which of the following foods should you avoid..
A. Fish B. Dry beans and peas C. Cheese D. Spaghetti |
C. Cheese
|
