Science Trivia Questions — page 55

Scientists determined that specific agents produce specific diseases, and many are transmitted by sneezing. What must the droplets contain for a disease to be transmitted by sneezing?

• Athe disease-causing particles
• Bcells exposed to the disease
• Ctoxins released by diseased cells
• Ddisease-specific antibodies

Which best determines the health of a lake used as a source of freshwater?

• Aits depth and width
• Bits location and depth
• Cits temperature and pH
• Dits temperature and depth

The speed at which sound waves travel depends on the

• Adistance between the vibration source and the receiver.
• Btype of device making the sound.
• Csize of the object making the sound.
• Dtype of material through which the sound travels.

Which plant is grown for food?

• AOrchid
• BTobacco
• CCotton
• DRice

When a hydrogen atom loses its electron it might form which of the following?

• AA neutron
• BA proton
• CA quark
• DA lepton

What is the standard SI unit for time?

• AMinute
• BHour
• CSecond
• DDay

An increase in greenhouse gases, which are believed to cause global warming, is due to a change in which occurrence?

• Awater cycle
• Bcarbon cycle
• Cweather patterns
• Docean tides

According to Socrates, people should worry most about which of the following?

• ATheir future
• BNothing at all
• CTheir health
• DTheir souls

Which of these is said to be helpful in reducing swelling from bee stings?

• APinto beans
• BPumpkin
• CParsley
• DOnion

Which are produced during photosynthesis?

• Aoxygen and minerals
• Bcarbon dioxide and minerals
• Coxygen and sugar
• Dcarbon dioxide and sugar

On January 15th, there were 10 hours and 24 minutes of daylight in Jacksonville, Florida. On the same day, there were only 9 hours and 37 minutes of daylight in New York City. Why did New York have fewer hours of daylight than Florida?

• Abecause the Moon reflects sunlight onto Earth
• Bbecause gravity pulls Earth toward the Sun
• Cbecause Earth rotates
• Dbecause Earth tilts on its axis

If a student playing the drums hits the drums with greater force, the sound would be

• Aquieter.
• Blouder.
• Clower in pitch.
• Dhigher in pitch.

At this stage of the plague, one of the the symptoms is the presence of black patches on the skin.

• ASepticemic Plague
• BBubonic Plague
• CPneumonic Plague
• DPlague of Justinian

The medical term for the belly button is which of the following?

• ANares
• BPaxillus
• CUmbilicus
• DNevus

This gland, located in the base of the human skull, is the central gland in the endocrine regulation and is as large as a pea.

• AErbers gland
• BThe thyroid gland
• CThe pituitary gland
• DThe thymus

Lea is investigating how phosphates affect oxygen levels in pond water. For part of the investigation, she uses pond water that contains no phosphates. The pond water without phosphates would be what part of the investigation?

• Acontrol group
• Bhypothesis
• Cexperimental group
• Dconclusion

Which would be the best conductor of electricity?

• Acork
• Bsilver
• Cwater
• Dair

Which of the following is a direct result of Earth's tilt on its axis?

• Atides
• Bseasons
• Cweather
• Dgravity

What is the standard SI unit for temperature?

• AFahrenheit
• BCelsius
• CRankine
• DKelvin

A power plant uses chemical energy to produce electricity. What source of energy does the power plant most likely use?

• Atidal waves
• Bwind
• Cfossil fuel
• Dsunlight

Which organ is the site of gas exchange between the body and the environment?

• Aspleen
• Bpancreas
• Clungs
• Dliver

Which tool should a student use to examine spots on a frog?

• Amagnet
• Bhand lens
• Cthermometer
• Dgraduated cylinder

A marsh in your neighborhood dried up during a long, hot summer. This is most likely to cause which of the following changes in the neighborhood?

• Aan increase in the number of insect-eating birds
• Ban increase in the number of bats
• Ca decrease in the number of mosquitoes
• Da decrease in the number of Japanese beetles

A family installs a new heating system in their home. Which is the most desirable result of the new heating system?

• Aproducing more noise pollution
• Bincreasing the time it takes to heat the home
• Cincreasing the use of natural resources
• Ddecreasing the amount of energy used

Which energy source is nonrenewable?

• Afossil fuel
• Bbiomass
• Cwind
• Dsunlight

Which of these is a negative effect associated with some types of new technology?

• Aincreased worker productivity
• Bdecreased physical activity
• Cfaster diagnosis of medical problems
• Dless time required to find information

Dental caries, commonly known as a cavity, is one of the most common health disorders, second only to this one.

• AFever
• BSore throat
• CCold
• DMumps

Tectonic motion caused tension between plates in Earth's crust. A sudden release of this energy occurred. Based on this information, which event happened?

• Asubsidence
• Bvolcanic eruption
• Cearthquake
• Dmeteoroid impact

Mountain bike tires have large, knob-like treads. These tires are useful on steep slopes because they

• Aprevent braking of the bicycle.
• Bincrease the stopping distance.
• Ccarry heavy weights.
• Dincrease friction.

Earthquake waves are recorded by seismograph machines. What does an earthquake wave transmit?

• Aspeed
• Bparticles
• Clight
• Denergy

A student uses a telescope to view stars at night. The student notices some of the stars are different colors. The color of a star is determined most by its

• Amass.
• Bsize.
• Ctemperature.
• Ddistance from Earth.

How long does it take for a platypus egg to develop completely and hatch?

• A28 days of internal formation and 10 days of external incubation
• B15 days of internal formation and 35 days of external incubation
• CThe eggs develop within 7 days in the mothers uterus and the babies are hatched almost immediately after laying
• D24 hours of internal formation and 15 days of incubation

What is the unit of electrical capacitance?

• AFarad
• BWatt
• CGauss
• DHenry

Which of the following statements best explains why magnets usually stick to a refrigerator door?

• AThe refrigerator door has electric wires in it.
• BThe refrigerator door is smooth.
• CThe refrigerator door is a good conductor.
• DThe refrigerator door contains iron.

Fossil fuels are considered nonrenewable because they

• Aproduce pollution
• Boften contain microscopic animals
• Ctake millions of years to form
• Dare no longer used by humans

How would the Sun appear to an astronaut on Pluto compared with how it looks from Earth?

• AThe Sun would appear smaller and dimmer.
• BThe Sun would appear larger and brighter.
• CThe Sun would appear smaller and brighter.
• DThe Sun would appear larger and dimmer.

The energy that allows the water cycle to occur comes from

• Afriction.
• Bradioactive decay.
• Cthe Sun.
• Delectricity.

Compost piles have many parts, such as leaves, moisture, vegetables, and microorganisms. Which part of a compost pile breaks down materials and adds nutrients to the soil?

• Aleaves
• Bmicroorganisms
• Cvegetables
• Dmoisture

The motion of a car accelerating in a straight line differs from the motion of a car moving in a straight line at a constant speed. Which change best describes acceleration of a car?

• Aa change in the distance the car travels
• Bthe change in velocity divided by the time for that change
• Ca change in the direction of the car
• Dthe change in the time for the car to travel a distance

In the human body, which system functions primarily to defend the body against disease?

• Aimmune
• Bdigestive
• Cnervous
• Drespiratory

A student measures the acceleration of a stone block on a level surface when the block is acted upon by a known force. What additional information is needed to precisely calculate the block's mass?

• Athe direction of motion
• Bthe mass of the surface
• Cthe block's density
• Dthe amount of friction

What is the liquid layer of Earth that lies beneath the mantle?

• Aouter core
• Binner core
• Casthenosphere
• Dmesosphere

In 2009, Thomas R. Frieden, MD assumed office as director of this agency of the U.S. Department of Health and Human Services located just outside of Atlanta, Georgia.

• ACenters for Disease Control Prevention (CDC)
• BFood and Drug Administration
• CAmerican Lung Association
• DMayo Clinic

Which part of a sound wave measures loudness?

• Amagnitude
• Bwavelength
• Cfrequency
• Damplitude

A conducting wire wrapped in plastic protects the user because the plastic

• Ahas magnetic properties.
• Bis a good electrical insulator.
• Ckeeps the wire cool.
• Dallows heat to move freely.

Visible light in the electromagnetic spectrum

• Amakes up 50 percent of the spectrum.
• Bmakes up more than 75 percent of the spectrum.
• Cis a broad band within the spectrum.
• Dis a narrow band within the spectrum.

When forest trees are cleared from the land, and trees are not replanted, which of the following will most likely occur?

• Asedimentation
• Bsoil erosion
• Cincrease in habitat
• Dlightning fires

Which statement describes animal embryos?

• Arepresent the earliest stage of development
• Bhave the same number of cells as a fertilized egg
• Chave half the number of chromosomes as an adult
• Ddisplay all the features of an adult

The distance between Richmond and Norfolk is best measured in ___.

• Acentimeters
• Bmillimeters
• Cmeters
• Dkilometers

If two tectonic plates are each moving in opposite directions away from the mid-ocean ridge at a rate of 10 millimeters per year, how long will it take for the ridge to become 100 millimeters broader?

• A10 years
• B5 years
• C100 years
• D1 year