Science Trivia Questions — page 85

Which difference between water and ice results in ice floating on cold water?

• Avolume
• Bdensity
• Cheat
• Dshape

Oxytocin is an important hormone for the human body especially for women. What is it responsible for?

• AContractions of the uterus
• BDevelopment of the uterus
• CDevelopment of the ovaries
• DOvulation

Which best explains how nutrients get into soil?

• Athrough exposure to air
• Bthrough decaying matter
• Cby rocks eroding
• Dby absorbing sunlight

Compared to Earth, the Moon is

• Abrighter.
• Bheavier.
• Clarger.
• Ddrier.

The Hubble Space Telescope in orbit around the Earth has become one of the most important telescopes in the history of astronomy since its launch in 1990. It doesn't work in which one of these wavelength regimes?

• ARadio
• BUltraviolet
• COptical
• DNear-infrared

In what internal human organ are the islets of Langerhans located?

• ALiver
• BSpleen
• CPancreas
• DKidney

In which ways are hills most different from mountains?

• AHills are smaller and more rounded.
• BHills are deeper and more level.
• CHills are steeper and rockier.
• DHills are taller and snowy.

Which tool would be best to use to record the types of trees found along a riverbank?

• Acamera
• Bthermometer
• Chand lens
• Dmicroscope

What day is internationally recognised and annually observed as World AIDS Day?

• AApril 5
• BJune 1
• CMay 1
• DDecember 1

When you make soap bubbles, what is inside the bubbles?

• ANothing
• BWater
• CAir
• DSoap

The cell cycle describes the processes that take place as a cell

• Arepairs old cells.
• Babsorbs nutrients.
• Cmakes proteins.
• Dforms new cells.

Estuaries are called "the nurseries of the sea" because many species lay eggs and develop their young in estuaries. Which two features of estuaries support this role most?

• Aabundant shelter and concentrated nutrients
• Bconcentrated nutrients and a steep salt gradient
• Ca steep salt gradient and shallow water
• Dshallow water and abundant shelter

If an ecosystem's balance is disturbed by a volcanic eruption, what will most likely occur?

• AThe consumers in the ecosystem will begin to produce more oxygen.
• BThe ecosystem will not change from its original state.
• CThe ecosystem will eventually become balanced again.
• DThe consumers in the ecosystem will begin to consume carbon dioxide.

Which substance contributes most to the greenhouse effect?

• Acarbon dioxide
• Bnitrous oxides
• Cwood smoke
• Dnuclear radiation

If you and I are chatting over the Internet and I write LOL, that means that I am doing this.

• ACrying
• BLaughing
• CSleeping
• DEating

Which adaptation helps a bird fly?

• Alonger beaks
• Blarger feet
• Chollow bones
• Dbigger eyes

Which statement explains why a mother's unhealthy diet during pregnancy is harmful to her embryo's development?

• AThe embryo receives mutations carried by its mother.
• BThe embryo receives oxygen through the placenta.
• CThe embryo receives its food from its mother through the placenta.
• DThe embryo inherits half its chromosomes from its mother.

Which of these is a renewable resource found in Nevada?

• Ageothermal energy
• Bgravel deposits
• Czinc metal
• Dpetroleum products

Which part of a building is also a computer operating system name?

• ALoggia
• BWindows
• CDoors
• DBalcony

Which of these is not an instinctive behavior?

• Aa turtle burying its eggs
• Ba bird building a nest
• Ca bear hibernating in winter
• Da horse pulling a plow

Which statement describes an interaction between the hydrosphere and the atmosphere?

• AAshes rise from a volcanic eruption to block sunlight.
• BLava from an underwater volcano cools to form a mountain.
• CWater vapor rises from the ocean to form clouds.
• DFlowing water carves through rock to form a canyon.

In what part of the apple are the toxic compounds cyanogenic glycosides found?

• ASeeds
• BLeaves
• CSkin of the fruit
• DFlowers

The B vitamins group was once thought to be a single vitamin. There are now eight officially recognized B vitamins referred to as vitamin B complex. Which of the following is not a vitamin from the B group?

• AB4
• BB5
• CB12
• DB1

A teacher builds a model of a hydrogen atom. A red golf ball is used for a proton, and a green golf ball is used for an electron. Which is not accurate concerning the model?

• Atypes of particles present
• Brelative mass of particles
• Ccharges of particles present
• Dnumber of particles

All of the following are treatments for rheumatoid arthritis EXCEPT which one?

• AGold
• BCarbamazepine
• CPrednisone
• DHydroxychloroquine

The drag of wind results in which feature of ocean surface currents?

• Acyclical variations in the height of high tides
• Bmovement of water away from the equator
• Cdeflection of water toward the direction of airflow
• Dreduction in velocity with distance from Earth's poles

Which method is the best safety procedure when working around open flames?

• Ause an electric fan to blow gases from the flame
• Btie back long hair
• Cwear an acid-resistant apron
• Dwash your hands

Which of these is part of the description of protein?

• Aa folded chain of amino acids
• Ba branched chain of fatty acids
• Ca folded chain of carbohydrates
• Da branched chain of nucleic acids

What is an environmental threat posed by oil and gas acquisition and transport that is not posed by the acquisition and transport of the energy resources uranium, and wood?

• Asoil compaction and loss
• Bhabitat change
• Cpipeline leaks
• Dvehicle pollution

The human body gets the energy it needs for growth and repair directly from

• Awater
• Bfood
• Csoil
• Dsunlight

The best description of the troposphere is the layer of the atmosphere with the

• Agreatest density.
• Bcoldest temperature.
• Cmost ozone.
• Dhighest altitude.

What does a mirror do to light that causes objects to appear backwards?

• Arefracts
• Bblocks
• Creflects
• Dabsorbs

What is the function of the nucleus in a cell?

• Acontrols movement
• Bprovides nutrients
• Cprovides energy
• Dcontrols activity

What part of the human body does the science periodontics study?

• AEyes
• BFinger and toes
• CEars
• DGums and mouth

The Moon has the greatest effect on Earth's

• Ayear
• Bseasons
• Cdaylight hours
• Docean tides

There are a variety of events that can disrupt ecosystems. Some events result in local disturbances and others can affect a much larger area. Which event would most likely result in change on a global scale?

• Aland scarred by forest fires
• Bdestruction of tropical rain forests
• Cconverging plate boundaries
• Derosion of ocean shorelines

Two pool (billiard) balls collide, causing each to move in a different direction. Eventually, both come to a stop. The most important factor in causing them to stop is

• Agravity.
• Bbalance.
• Cfriction.
• Dsize.

All of the following are functions of a cell membrane except

• Aproducing energy for cell processes.
• Ballowing gases to enter the cell.
• Creleasing waste products from the cell.
• Dsurrounding and protecting the contents of the cell.

A delta can be seen from the air at the mouth of the Mississippi River. This delta was formed by

• Aweathering.
• Berosion.
• Cconservation of soil.
• Ddeposition of sediment.

Which kind of bridge uses cables for support?

• Aa truss bridge
• Ba beam bridge
• Ca cantilever bridge
• Da suspension bridge

If your hands are cold, you can warm them by rubbing them together. The heat energy that you produce is caused by

• Ainsulation.
• Bconduction.
• Cmagnetism.
• Dfriction.

Eyeglasses have two arms called temples attached to the eye lenses by very small hinges. Which of these functions like the hinges on eyeglasses?

• Afingers
• Bbase of the thumb
• Cknee
• Dneck vertebrae

An astronomer is studying two stars that are the same distance from Earth. Star X appears brighter than star Y. Which statement best explains this observation?

• AStar Y reflects the Sun's light better than star X.
• BStar X reflects the Sun's light better than star Y.
• CStar X is larger than star Y.
• DStar Y is larger than star X.

Recycling is important to the environment because it

• Ais a way of conserving nonrenewable resources.
• Bis a good way to earn money.
• Cdecreases the amount of natural resources.
• Dproduces more carbon dioxide for plants.

Which would most likely cause a decrease in the number of woodpeckers in an ecosystem?

• Adestroying all dead trees and stumps
• Bbuilding a road around a small forest
• Cdraining a spring-fed pond
• Dplowing and planting meadows

What is the primary job of red blood cells?

• Aallow reproduction
• Bfight disease
• Ctransport oxygen
• Dremove waste

In pea plants, tall is dominant over short. What size pea plants would result when two short plants are crossed?

• Ashort plants only
• Btall plants only
• Cshort and tall plants
• Dmiddle-sized plants

A model of Earth would be different from a model of the Moon because the Moon model would be

• Arougher
• Bshinier
• Cheavier
• Dsmaller

Scientists study the current conditions of many solar system objects to gain insight into conditions early in the history of Earth. Which phenomenon most closely models current theories of early Earth?

• Ahundreds of active volcanoes on Io
• Bliquid forming valleys on Mars
• Crock and ice forming the core of Neptune
• Dice covering the entire surface of Europa

Most underground caves are formed by the action of water on

• Asandstone
• Bgranite
• Cshale
• Dlimestone