Science Trivia Questions — page 70

A toy truck rolls over a smooth surface. If the surface is covered with sand, the truck will most likely roll

• Aslower
• Bat the same speed
• Cfaster

Which landforms are most like hills but are much taller?

• Avalleys
• Bcaves
• Cmountains
• Dplains

Many scientists accept the theory that excess emission of carbon dioxide from cars and industry causes a layer of gas in the upper atmosphere that traps heat. This, in turn, causes the average temperature on Earth to rise. Which of the following observations supports that theory?

• ARadiation on Earth's surface is increasing because of a hole in the ozone layer
• BCarbon dioxide gas from cars and industry is a product of burning that produces heat.
• CCarbon dioxide in the upper atmosphere reflects heat radiated from Earth's surface.
• DThe summer of 1998 was one of the hottest summer seasons on record.

Which object is the best conductor of electricity?

• Ametal fork
• Brubber boot
• Cwooden bat
• Dplastic spoon

Energy from the Sun changes ocean water to a gas. This sentence describes which step in the water cycle?

• Arunoff
• Bprecipitation
• Cevaporation
• Dcondensation

The digestion process begins in which of the following?

• Astomach
• Bmouth
• Clarge intestine
• Dsmall intestine

Two identical plants are planted 3 meters apart. One plant is flowering, but the other is not. A student concludes that the plants are receiving an unequal supply of water. Another possible explanation the other plant is not flowering is that the plants are

• Ain soil with high humus content.
• Breceiving different amounts of sunlight.
• Creceiving different amounts of carbon dioxide.
• Dtoo close to one another.

Which set contains only prime numbers?

• A2, 3, 5, 7,11,13, 17
• B1, 3, 5, 7, 9, 11, 13
• C1, 4, 11, 13, 15, 17
• D2, 3, 5, 7, 9, 11, 37

The large-scale development of personal automobiles started in the early 1900s. Which of the following was a major cost associated with the efficient use of these automobiles?

• ACities had to be built farther apart.
• BHouses inside cities had to be built farther apart.
• CVehicle choices available to consumers had to be expanded.
• DRoad systems had to be expanded.

The directions for making a protein

• Aresult in DNA.
• Bare carried by amino acids.
• Care carried by DNA.
• Dresult in amino acids.

Which object has a gravitational force so strong that it forms the center of the solar system?

• APluto
• Bthe Moon
• Cthe Sun
• DEarth

How much energy is needed to raise the temperature of 5.0 grams of lead from 25°C to 35°C? [specific heat (c) = 0.129 J/(g °C)] q = c \times m \times \Delta T

• A6.45 J/(g °C)
• B16.1 J
• C6.45 J
• D16.1 J/(g °C)

What is the major cause of seasonal changes?

• Acycles in the amount of energy released by the Sun
• Btilt of the Earth's axis
• CEarth changing its distance from the Sun
• Dchanging patterns in wind and ocean currents

Nonrenewable sources of energy have limited supplies. Researchers are developing devices that will make renewable energy more available. Which is a source of renewable energy?

• Agasoline
• Boil
• Ccoal
• Dwind

Water that evaporates from lakes and streams condenses into clouds and later falls as rain. The property of water that is demonstrated is the ability to

• Aabsorb large amounts of energy.
• Bboil at a high temperature.
• Cchange from a liquid to a gas.
• Dact as a universal solvent.

Some health care professionals recommend that children use insect repellent before going outside. Using insect repellent is a good way to keep the insects from

• Adying.
• Blaying eggs.
• Creproducing.
• Dspreading disease.

Which is a way the agricultural biotechnology industry could have a positive impact on the environment?

• Aby increasing the use of wind farms that produce electricity
• Bby producing crops that are virus resistant
• Cby making robots to replace large farm machines
• Dby reducing the need for countries to import food

This is one of the first symptoms of dental caries. It is most pronounced when consuming sweet, hot or cold foods and liquids.

• ANumbness
• BBad breath
• CSaliva overproduction
• DToothache

Which living organism makes its own food using sunlight?

• Adeer
• Blizard
• Chawk
• Dtree

When light reaches an eyeglass lens, the light is

• Areflected.
• Babsorbed.
• Crefracted.
• Ddiffracted.

In what year did Einstein pass away?

• A1956
• B1955
• C1960
• D1954

Which substance should a student apply to the skin if he or she gets splashed with an acid?

• Asalt
• Bvinegar
• Cformaldehyde
• Dwater

A student conducts an experiment to determine the average size of acorn that squirrels eat. The student gave several different sizes of acorns to a squirrel. Which action would most likely improve the results?

• Ause more than one squirrel
• Bincrease the number of students
• Cshorten the period of observation
• Dchange the food source

Venus is the third brightest object in the sky after the Sun and what other object?

• AProxima Centuri
• BSirius
• CThe Moon
• DAldeberan

The cheetah population around the world has decreased because of poaching and loss of habitat. The surviving population is found to have similar alleles. Which factor is endangering the species' survival the most?

• Aharmful genetic mutations
• Bdecrease in competition
• Cincrease in adaptations
• Dshrinking of the gene pool

Which step will most likely ensure that the results of an investigation are valid?

• Averifying that results match the original hypothesis
• Busing a computer to graph results
• Celiminating any results that appear to be abnormal
• Dcomparing the results with those of other scientists

What nervous system ailment, characterized by symptoms of severe lethargy and fatigue, is primarily caused by the lack of vitamin B1 (Thiamine) in the diet?

• ARickets
• BScurvy
• CNyctalopia
• DBeriberi

During a lecture, a professor was talking about the potential that hydrogen has for exploding under certain conditions. Which was most likely the topic of the professor's lecture?

• AConductivity of Gases
• BPhysical Properties of Elements
• CChemical Properties of Gases
• DPhase Changes in Matter

When considering if scientific research is correct, all of these are important except

• Athe way the research study was designed.
• Bhow the author feels about the research study.
• Cwhen the research study was done.
• Dother support for the research study findings.

What is the main cause for most pandemics in history?

• AThe domestication of animals
• BThe bad hygiene of the people
• CHuman negligence
• DGenetic experiments

Mounds and ridges in the Snake Range area of Nevada are composed of boulders, sand, and gravel. These landforms were most likely formed by

• Awind erosion.
• Bmelting glaciers.
• Cearthquakes.
• Dhurricanes.

The Earth's Moon is

• Asometimes closer to the Sun than it is to the Earth and sometimes closer to the Earth than it is to the Sun
• Balways much closer to the Earth than it is to the Sun
• Calways much closer to the Sun than it is to the Earth
• Dabout the same distance from the Sun as it is from the Earth

An organism, such as a nematode worm, may have only 1000 cells. It should be classified as being

• Amulticellular.
• Bunicellular.
• Ca virus.
• Da bacteria.

Under which circumstance would an adaptation that shortens the time of a tadpole's metamorphosis be most useful?

• Awhen tadpoles need to blend in with their surroundings
• Bwhen there is a decrease in the number of predators
• Cwhen there is a limited amount of water in their environment
• Dwhen tadpoles need to swim immediately

Which is the best action to help protect water resources in Virginia?

• ADispose of pet waste in a stream.
• BRinse spilled gasoline with a hose.
• CPut hazardous waste in with house trash.
• DOrganize a river cleanup program.

Windows Vista commercials have boasted of the Record Live Television capability of the operating system. What is necessary to use this function?

• ACable Box
• BOptical Drive
• CDigital Television
• DTV Tuner Card

Which statement regarding snakes is true?

• AAll snakes have teeth but not all snakes have fangs.
• BAll sea snakes have fangs.
• CAll land snakes have fangs.
• DAll snakes have fangs.

Plants that can live in sandy soils most likely have the ability to withstand

• Adry conditions.
• Bfires.
• Ccold temperatures.
• Dsalt.

How far along are you approximately, when you feel the baby move for the first time?

• A2 weeks
• B10 weeks
• C35 weeks
• D20 weeks

This country has more Internet Service Providers than any other non-English speaking country.

• ARussia
• BBrazil
• CCzech republic
• DRomania

Which external stimulus causes a plant to bend toward it?

• Aa source of wind
• Ba magnetic field
• Ca light source
• Da spray of water

As a river enters a larger body of water, sediments are deposited over a wide area. Which of these landforms is likely to be formed at the site of deposition?

• ACave
• BValley
• CDelta
• DMountain

In one day, a family in a car rode for 2 hours, stopped for 3 hours, and then rode for another 5 hours. During the day, the family traveled a total distance of 400 kilometers. What was their average speed for the whole trip?

• A50 km/h
• B10 km/h
• C20 km/h
• D40 km/h

Which statement concerning whales is true?

• ASome whales have one blow hole and some have two.
• BAll whales have two blow holes.
• CEvery whale has exactly one blow hole.
• DOnly some whales have blow holes.

Which of the following is the best example of a part of the propulsion system of a tractor?

• Afront headlight
• Bengine
• Chood
• Dsteering wheel

Many bacteria are decomposer organisms. Which of the following statements best describes how these bacteria help make soil more fertile?

• AThe bacteria change sunlight into minerals.
• BThe bacteria combine with sand to form rocks.
• CThe bacteria break down plant and animal matter.
• DThe bacteria break down water into food.

In which way are sugars usually transported throughout a pine tree?

• Adown from the needles to the roots
• Bacross from the cones to the needles
• Cup from the roots to the branches
• Dcircular from the top to the bottom of the trunk

A student stands on a scale, and the scale reads 85 pounds. What is being measured by the scale?

• Athe force of gravity acting on the student
• Bthe mass of the student
• Cthe volume of the student
• Dthe air pressure surrounding the student

Female seals usually return to the same beaches year after year to give birth. If they are repeatedly disturbed by humans at those beaches, how will the seals most likely respond?

• AThey will change color.
• BThey will give birth at different beaches.
• CThey will hunt for food more often.
• DThey will give birth to more pups.

6 is a multiple of 2 and 3, 9 is a multiple of 3 only, 10 is a multiple of 5 and what other number?

• A15
• B10
• C5
• D2