Science Trivia Questions for Students — page 66

The surface of a heated metal object measures 120°C. It is dropped into a bucket filled with water measuring 10°C. Which of the following is most likely to occur?

• AThe water and metal will adjust to the same temperature between 10°C and 120°C.
• BBoth the water and metal will adjust to the same temperature below 10°C.
• CThe water and metal will adjust to different temperatures above 120°C.
• DThe water will remain the same temperature, but the metal will cool to 10°C.

What allows two students standing ten feet apart to hear each other talk?

• Asubatomic particles
• Bair vibrations
• Csolar radiation
• Delectric current

A solution of lead (II) nitrate reacts with a solution of sodium iodide to produce a yellow solid of lead (II) iodide and aqueous sodium nitrate. Which of these illustrates the reaction?

• APb_{2}N(aq) + NaI(aq) -> Pb_{2}I(s) NaN(aq)
• BPb(NO_{3})_{2}(aq) + 2NaI(aq) -> PbI_{2}(s) + 2NaNO_{3}(aq)
• CL_{2}N(aq) + SI(aq) -> L_{2}I(s) + SN(aq)
• DFe(NO_{3})_{2}(aq) + 2NaI(aq) -> FeI_{2} + 2NaNO_{3}(aq)

How are igneous and sedimentary rocks similar?

• AThey are both formed from cooled lava.
• BHeat and pressure can turn them into metamorphic rock.
• CHeat and pressure can turn them into lava.
• DThey are both formed by erosion.

Which of these provides the best evidence that the environment of Earth has changed over millions of years?

• Amarine fossils found in mountains
• Bbones of animals found on the ground
• Cpolished appearance of rock surfaces
• Dactive migration of sand dunes

What is the BEST reason for including fruits and leafy vegetables in a healthy diet?

• AThey are rich in minerals and vitamins.
• BThey are the best source of protein.
• CThey are the best source of carbohydrates.
• DThey have a high water content.

Which rapid changes can be caused by storms?

• Alandslides and flooding
• Blandslides and volcanoes
• Cflooding and earthquakes
• Dvolcanoes and earthquakes

Which unit can be used to describe an object's length?

• Aliters
• Bgrams
• Cminutes
• Dmeters

Which is a nonrenewable natural resource that is used to make electrical energy?

• Athermal
• Bwater
• Ccoal
• Dwind

Sedimentary rock helps scientists piece together the history of Earth most likely using clues from

• Asoil.
• Bfossils.
• Cgravel.
• Dhumus.

Which statement best describes a bacterial cell?

• AIt is a complete organism.
• BIt contains different kinds of cells.
• CIt contains more than one cell.
• DIt is part of a larger organism.

Astronauts weigh more on Earth than they do on the moon because

• Athey have less mass on the moon.
• Btheir density decreases on the moon.
• Cthe moon has less friction than Earth.
• Dthe moon has less gravity than Earth.

Which food contains the highest percentage of protein?

• Acarrots
• Bdates
• Cchicken
• Drice

Jupiter is the largest planet in the solar system. It rotates on its axis once about every 10 hours. What time period on Earth would be 10 hours long if Earth rotated on its axis once every 10 hours?

• Aa month
• Ba week
• Ca year
• Da day

When a small group of organisms colonizes a new habitat, the population may be genetically different from the parent population due to differences in allele frequencies. The process responsible for this is

• Agenetic drift.
• Bdisruptive selection.
• Cnatural selection.
• Dgenetic equilibrium.

Scientists found trilobite and brachiopod index fossils in cliffs a great distance apart from each other. What can scientists infer about the rocks in which these fossils were found?

• Athe density of the rock
• Bthe weathering of the rock
• Cthe slope of the rock
• Dthe age of the rock

In addition to light, which other form of energy does a lightbulb produce?

• Achemical
• Bmechanical
• Cmagnetic
• Dthermal

Which feature results when plates of different densities converge and one plate slips under the other?

• Aa trench
• Ba fault
• Ca ridge
• Da rift zone

Which of these shows the correct order for the central dogma of molecular biology?

• ADNA to RNA to protein
• BDNA to protein to RNA
• Cprotein to DNA to RNA
• DRNA to DNA to protein

Which is the best example of recycling?

• Ausing low energy appliances
• Busing aluminum cans to make new products
• Cwashing and reusing plastic cups
• Dusing empty milk cartons as flower planters

Which of the following is the most important safety practice when using a rock hammer on a geology field trip?

• Awear goggles while breaking rocks
• Bhave a clean eye-wash station available
• Chave a bucket of sand in case of sparks
• Dwear gloves while breaking rocks

Which of the following properties of ethanol is a chemical property?

• Aboils at 78°C
• Bdensity of 0.79 g/cm^3
• Ccolorless
• Dflammable

Students measured how long it took for an ice cube to melt. Which measurement best represents how long it took for the ice cube to melt?

• A80 seconds
• B60 milliliters
• C40 grams
• D20° Celsius

What best describes skin?

• Aflexible
• Bbrittle
• Chard
• Dstiff

Which occurs as a result of Earth's tilt on its rotating axis?

• Alight and dark changes of day and night
• Bprevalent or trade winds
• Cmovement of the tides
• Dseasonal changes in the climate

In humans, a V-shaped hairline is dominant over a straight hairline. If one parent is homozygous for a V-shaped hairline ( HH ) while the other parent is homozygous for a straight hairline ( hh ), what is the probability that the offspring of these parents will have a straight hairline?

• A0%
• B50%
• C75%
• D100%

Which characteristic of sound makes it possible for bats to fly in the dark without hitting any objects?

• Arefraction
• Bamplification
• Creflection
• Dconduction

Which energy transformation occurs when a person hits a drum with a drumstick?

• Aelectrical to light
• Blight to mechanical
• Cmechanical to sound
• Dsound to electrical

Rich beds of marine fossils have been found in Florida. By dating these fossils, scientists can best determine

• Awhen the atmosphere of Earth was more humid than it is today.
• Bthe date when organisms moved onto dry land.
• Cwhen Florida collided with the North American continent.
• Dthe period during which Florida was covered in water.

Earthworms move randomly throughout topsoil. How do earthworms most likely affect the topsoil?

• Aby adding nutrients to the topsoil
• Bby decreasing the fertility of the topsoil
• Cby removing the minerals from the topsoil
• Dby compacting the topsoil

In a particular habitat, Animal X has two sources of food. One source is found in the water and the other source is found on land. If the main predator of Animal X is found only on land, what is the most likely structural adaptation that will be selected for in the population of Animal X?

• Adevelopment of claws
• Bincrease in visual acuity
• Cincrease in leg strength
• Ddevelopment of webbed feet

Some antibiotics used to treat infections in humans are also used to treat chickens, but some groups oppose this practice. The overuse of the antibiotics will most likely influence the natural selection of which type of organisms?

• Achickens that are resistant to infection
• Bmicrobes that are susceptible to the antibiotics
• Cmicrobes that are resistant to the antibiotics
• Dchickens that naturally make the antibiotics

When making observations in nature, what is the best way for students to show respect for the environment?

• ALeave the area exactly as they found it.
• BTake photographs.
• CNot take samples.
• DStay on the paths.

Several dinosaur bones are discovered buried in volcanic ash. The type of dinosaur can best be identified by

• Acomparing to characteristics of known dinosaurs.
• Bknowing the location where the fossils were found.
• Cestablishing an inventory of bones collected.
• Dknowing the absolute age of the fossils.

A change in the environment that causes a response is known as a

• Astimulus
• Breflex
• Csource
• Dhabit

Which phrase does not describe asexual reproduction in organisms?

• Arequires two parents
• Blittle variation in offspring
• Conly one type of cell involved
• Dduplicates its genetic material

Changes at the molecular level can turn proto-oncogenes into oncogenes. These changes cause unregulated cell division. Which disease is caused by this transformation?

• Aleukemia
• Bpneumonia
• Chemophilia
• Ddiabetes

Human activities affect the natural environment in many ways. Which action would have a positive effect on the natural environment?

• Acutting down trees to build new homes
• Bbuilding dams to produce electricity
• Cusing natural gas to heat homes
• Drecycling paper to reduce the cutting of trees

Which is an example of an organism that has been selectively bred for a particular genetic trait?

• Apigs that form large herds
• Bcows that graze on grass
• Ccats that eat mice
• Dchickens that lay large eggs

Which natural formation is the best example of the result of both constructive and destructive forces such as weathering, erosion, and deposition of sediment?

• AThe Himalayan Mountains
• BThe Grand Canyon
• CThe Mid-Atlantic Ridge
• DThe Mojave Desert

The frequency of a wave is measured in

• Ameters/minute.
• Bhertz/second.
• Chertz.
• Dmeters.

Which part of a bicycle BEST moves in a circle?

• AFoot pedal
• BSeat
• CKickstand
• DFrame

While conducting an experiment on gravity, what will be needed to ensure the safety of students?

• Africtionless surfaces
• Bdrop zones
• Cquiet zones
• Dheavy objects

During winter, the white fur of an arctic fox blends in with the snow. This adaptation is called

• Ahibernation
• Bmovement
• Ccamouflage
• Dmigration

Wood is considered a renewable resource because

• Athere are many varieties of trees.
• Btrees are used for many purposes.
• Coxygen is released by trees.
• Dtrees can be replanted.

Which physical feature exists both on Earth and on the Moon?

• Alakes
• Bmountains
• Cforests
• Dclouds

A rabbit population has increased noticeably in the past ten years. Which of the following is a reasonable hypothesis for this population growth?

• AAn organism that relies on similar food sources has migrated into the area.
• BAbnormal weather conditions have decreased water levels of the local ponds.
• CCompetition for food has increased among rabbits.
• DThe rabbit's main predator has been eliminated by human development.

Compared to the Sun, a red star most likely has a greater

• Avolume.
• Brate of rotation.
• Csurface temperature.
• Dnumber of orbiting planets.

Two identical lamps contain the same amount of different types of oil. They are allowed to burn until all the oil has been burned. Which measurement will best provide the total difference in chemical energy between the two oils?

• Atime it took for lamps to use oil
• Bfinal weight of lamp
• Coriginal volume of oil
• Dheight of flame produced by lamp

A student is trying to identify a mineral that has a nonmetallic luster and is black. It can also be scratched with a fingernail. According to the mineral reference sheet, the unidentified mineral is most likely

• Amagnetite.
• Bquartz.
• Cmica.
• Dhornblende.