Science Trivia Questions — page 121

How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area?

• AThey would change the color of their feathers.
• BThey would experience a decrease in available food.
• CThey would produce more offspring.
• DThey would experience a decrease in competition.

Approximately how long is a year on Uranus?

• A62 Earth years
• B109 Earth years
• C84 Earth years
• D47 Earth years

The increasing use of internal combustion engines could eventually deplete which resource?

• Awind energy
• Buranium
• Csolar energy
• Dpetroleum

In which of these countries is showing negative facial expressions considered impolite and is therefore avoided? Negative expressions are instead usually masked with smile or laughter.

• APeru
• BJapan
• CKenya
• DIndonesia

The Earths atmosphere is about 78.8 % nitrogen and almost 21 % oxygen. This element is the third most abundant comprising about 0.93 % of the atmosphere.

• AKrypton
• BArgon
• CHelium
• DPhosphorous

Earth's magnetosphere is not uniformly shaped. It is compressed on the side facing the Sun and has a long tail extending away from the Sun. Which phenomenon is responsible for this shape?

• Asolar winds bringing high-energy particles toward Earth
• Bgravitational attraction between Earth and the Sun
• Ccentripetal force of Earth's rotation
• Ddifferences in the distance between Earth and the Sun during Earth's orbit

A mineral sample is obtained from a box, and acid is dropped on the sample to determine if it bubbles. Which best describes what should be done with the mineral after testing it?

• ARinse the mineral with water, dry it, and return it to the box.
• BWipe the mineral with a paper towel and return it to the box.
• CReturn the mineral to its box.
• DPut the mineral in the sink and leave it for the teacher to clean up.

Valence is a characteristics of atoms which defines their ability to do which of the following?

• AFall apart
• BBe subject to radioactive decay
• CMove from one molecule to another
• DBind with other atoms

The Axiom of Preventive Medicine states that people with ___ risk for a disease should be screened and we should treat ___ of those people.

• Alow, some
• Bhigh, some
• Chigh, all
• Dlow, all

A sound is heard when you pluck a string on a guitar. What will happen to the sound if the same string is plucked harder?

• AThe pitch will stay the same, and the volume will be higher.
• BBoth the pitch and the volume will be higher.
• CThe volume will stay the same, and the pitch will be higher.
• DBoth the pitch and the volume will stay the same.

Michelle performed an investigation but the results did not match her hypothesis. What should Michelle do next?

• Achoose a different investigation
• Bchange the hypothesis to match the results
• Crepeat the investigation
• Dperform the investigation in a different way

A pitcher throws a 0.15 kg baseball at 43 40 m/s towards the catcher. What is the momentum of the baseball while moving at 40 m/s?

• A3.8 kg x m/s
• B270 kg x m/s
• C6.0 kg x m/s
• D0.025 kg x m/s

What is the main protein found in the egg white?

• AFibrin
• BOvalbumin
• CPhosphoprotein
• DGluten

In humans, the amount of sugar in blood is controlled by the release of a hormone called insulin. This process is an example of

• Adigestion
• Bexcretion
• Cregulation
• Ddepletion

What is the proper procedure for safely disposing of an acid solution after finishing an experiment?

• Adilute the solution with more acid
• Babsorb the liquid with paper towels
• Cneutralize the solution with a base
• Dpour the solution down the sink

Parents with freckles often have children with freckles. This occurs because

• Acertain habits cause freckles.
• Bfreckles develop from light.
• Ccertain foods cause freckles.
• Dfreckles are an inherited trait.

Zinc is a mineral that helps

• Acarry oxygen in blood.
• Bheal cuts and scratches.
• Cprevent cavities in teeth.
• Dkeep water balanced in cells.

Which layer of Earth makes up the smallest percentage of the planet's mass?

• Acrust
• Bmantle
• Couter core
• Dinner core

A student mixes vinegar and baking soda to use in a volcano model. The mixture causes the volcano model to feel cool when it is touched. What energy transformation has taken place?

• Alight energy changed to heat energy
• Bchemical energy changed to heat energy
• Cchemical energy changed to light energy
• Dheat energy changed to chemical energy

Which is a possible disadvantage of using flowing water to produce electricity?

• Areduced carbon dioxide emission
• Bonly suitable for industrial use
• Cecosystem damage and loss of land
• Dcreates reservoirs

The symptoms of strep throat infection are a red and swollen throat. What is the most likely cause of strep throat?

• Aeating raw vegetables
• Bdrinking lemonade
• Crunning in cold weather
• Dinvading bacteria

In which constellation did the brightest (Apparent magnitude -9) supernova occur?

• ALupus
• BHydra
• CCrater
• DAntlia

A manufacturer wants to produce a container for food storage that does not break easily and is airtight, inexpensive, and microwave-safe. Which of the following is the best material to use to make the container?

• Aglass
• Bpaper
• Cmetal
• Dplastic

Most scientists agree that an increase in the amount of greenhouse gases entering Earth's atmosphere causes

• Aan increase in melting of polar ice caps
• Ban increase in crustal plate movement
• Ca decrease in sea level
• Da decrease in average surface temperatures

According to the Big Bang Theory, how is the universe changing?

• AOnly the center is contracting.
• BIt is contracting.
• COnly the rim is expanding.
• DIt is expanding.

How long are the intestines of an average adult? (large and small)

• Aapprox 1-2 meters (3-6.5 feet)
• Bapprox 8-9 meters (26-29.5 feet)
• Capprox 15-16 meters (49-52.5 feet)
• Dapprox 19-20 meters (62-65 feet)

Which of the following best describes the relationship between frequency and wavelength of electromagnetic waves?

• AIf the frequency remains constant, the wavelength increases.
• BThe frequency increases as the wavelength decreases.
• CIf the wavelength remains constant, the frequency increases.
• DThe wavelength decreases as the frequency decreases.

Scientists estimate that the Earth and the Solar System were formed how long ago?

• A100 million years
• B3.5 billion years
• C10 billion years
• D4.5 billion years

What products are produced during photosynthesis?

• Aoxygen and sugar
• Bchloride and sugar
• Ccarbon dioxide and sugar
• Dnitrogen and sugar

These are often used as weather indicators. Before the weather gets dry, they open up. If it will be wet, they return to their normal shape.

• AWillow sprigs
• BDandelions
• CPea pods
• DPine cones

The cell structure that makes a plant cell more rigid than an animal cell is the

• Acell wall.
• Bcell membrane.
• Cribosome.
• Dcytoplasm.

The students in an engineering class built a robot that stacks wooden blocks. A built-in computer controls the movement of the robot. The computer in the robot performs a function most similar to which part of the human body?

• Alungs
• Bbrain
• Cheart
• Darms

Jake is testing how light affects plant growth. He grows two plants in identical pots with the same amount of water and fertilizer. Jake grows one of the plants in the sun, and the other in the shade. Which part of Jake's process indicates that there is a control for this investigation?

• AHe is using the same amount of water.
• BHe is growing one plant out of the sun.
• CHe is growing plants in identical pots.
• DHe is using the same amount of fertilizer.

Wind is a natural resource that benefits the southeastern shore of the Chesapeake Bay. How could these winds best benefit humans?

• AThe winds could blow oil spills into the bay.
• BThe winds could be converted to electrical energy.
• CThe winds could be converted to fossil fuel.
• DThe winds could blow air pollution toward land.

Binary stars orbit around the center of mass of the two stars. What causes the stars to remain together?

• Agravity between the stars
• Benergy released from the stars
• Cnuclear reactions in the stars
• Dmagnetic attraction between the stars

Cells perform many different processes that an organism needs to survive and grow. Which is the main function of the process of cellular respiration?

• Athe removal of waste products from the cell
• Bthe formation of new proteins for the cell
• Cthe release of energy
• Dthe production of sugar

Which cellular structure do organisms in the kingdoms Eubacteria, Archaebacteria, and Protista have in common?

• Aa circular chromosome
• Ba mitochondrion
• Ca cell membrane
• Da nucleus

Does liquid iron float on liquid nickel?

• AYes
• BNo

If a wireless network is set up in a home, yet the signal is weak in certain areas, you may buy one of these to increase the existing signal strength.

• ASatellite Dish
• BModem
• CRouter
• DRepeater

When the Northern Hemisphere is tilted toward the Sun, what season is occurring in Australia?

• Afall
• Bsummer
• Cwinter
• Dspring

Which would be best seen through a telescope?

• Aa cell
• Ba moon
• Ca molecule
• Da light ray

What is the smallest particle of an element that still exhibits all the properties of that element?

• Aa molecule
• Ban electron
• Can atom
• Da proton

A student performs a lab investigation by measuring the average time it takes for a toy car to travel 10 meters. Why is it best to perform the experiment in three trials?

• Ato better explain the investigation to others
• Bto increase the accuracy of the results
• Cto make the results more significant
• Dto form a good hypothesis

A student reaches into a bag of objects. Which property of the objects can be observed by using only the sense of touch?

• Acolor
• Bodor
• Ctexture
• Dtaste

Jonathon was studying bears. He found out that bears are born with some behaviors and learn others from their environment. Which behavior does a bear most likely inherit?

• Ahow to find food in garbage cans
• Bhow to hibernate during the winter
• Chow to seek shelter in a hollow log
• Dhow to live in human neighborhoods

Which of the following is an example of a compound?

• Awater
• Bcopper
• Ciron
• Dcarbon

Which of the following is an example of matter changing state?

• Atransferring sugar into a storage container
• Bheating a pan of water until the water is all gone
• Cputting a soft-drink can in the refrigerator to cool it
• Dheating soup on the stove until it is hot to your tongue

Plancks constant (h) is equal to this.

• A6.626068 × 10^(-34) m^2 kg / s
• B1.67262171 x 10^(-27) kg
• C10973731.568 525 m^(-1)
• D1.05457168 x 10^(-34) J s

Elasticity is a term in economics which refers to the proportional change in two variables related to each other. For example, if you earn $80,000 a year and use cable TV service that costs you $100 per year, your demand for the cable service is likely to be what?

• AInelastic
• BElastic
• CPerfectly elastic
• DPerfectly inelastic

Which structure best protects a cactus from being eaten by animals?

• Along roots near the surface
• Bgreen pigment in the cells
• Csharp spines as the leaves
• Dwaxy coating on the stem