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100
The Applachian mountains were taller in the past than they are today. There are two processes that are most responsible for the decrease in height of these mountians. Are the processes a) weathering and erosion b)sedimentation and flooding c) volcanic eruptions and landslides or d) tectonic collisions and earthquakes?
What is a) weathering and erosion
100
Substances enter any plant or animal cell by passing through which of the following structures? a) nucleus b) cell membrane c) vacuole d) chloroplast
What is the cell membrane
100
The smalles unit of a chemical compound that still has the properties of that compound is a) a nucleus b) a molecule c) an element d) an atom
What is b) a molecule
100
An example of the trade-off that occurs in the design process when a problem is solved but a feature is sacrificed is a) a car's gas mileage is increased and the engine has less power. b) an airplane uses a more efficient engine and has higher performance. c) a sports drink's taste is improved and has the same nutritional content. d) a computer company upgrades the hardware and the price remains unchanged
What is a) a car's gas mileage is increased and the engine has less power
100
Which of the following correctly lists the sturctures in space from smallest to largest? a) star, galaxy, solar system, universe b) star, solar system, galaxy, universe c) star, solar system, universe, galaxy d) star, universe, solar system, galaxy
What is b) star, solar system, galaxy, universe
200
Of the following planets, the one that is always closer to the sun than it is to Earth is a) Jupiter b) Mercury c) Saturn d) Pluto
What is b) Mercury
200
Bacteria in a forest ecosystem are best classified as which of the following types of organisms a) consumers b) decomposers c) predators d) producers
What is b) decomposers
200
The following is an example of a container that is filled with a pure substance rather than with a mixture a) a tire filled with air b) a jar filled with salt water c) a balloon filled with helium d) a glass filled with chocolate milk
What is c) a balloon filled with helium
200
Company X makes 100 cutom buses each year. Comany Y makes 10,000 buses of one type each year. The most likely reason that a customer would buy from Company X instead of Company Y is a) to keep the cost of the bus low b) to ensure that the bus will be easy to replace c) to provide ideas about how the bus will be built d) to ensure that people know how to drive the bus
What is c) to provide ideas about how the bus will be built
200
The skeletons of which of the following fish would best show the evolution of a fish species a) a male fish and a female fish that could produce offspring b) the same fish just before it received a cut and it healed c) a fish that lived recently and a fish that lived a long time ago d) the same fish just after it hatched and when it was full-grown
What is c) a fish that lived recently and fish that lived a long time ago
300
Seafloor spreading provides evidence of which of the following Earth processes a) erosion of coastlines b) weathering of mountains c) movement of crustal plates d) formation of sedimentary rocks
What is c) movement of crustal plates
300
In what way is a skin cell from a mouse similar to an amoeba a) both need energy b) both have cell walls c) both move with pseudopodia d) both consume carbon dioxide
What is a) both need energy
300
Sucrose has 12 carbon atoms, 11 oxygen atoms, and 22 hydrogen atoms. Ethanol has 2 carbon atoms, 1 oxygen atom, 6 hydrogen atoms. Which of the following is the same for both compounds? a) the mass of each molecule b) the length of each molecule c) the types of atoms in each molecule d) the number of atoms in each molecule
What is c) the types of atoms in each molecule
300
Sherry is goin to use her computer to draw a 3-D box. She wants to be able to specify the exact dimensions of and angles and to rotate the bos as needed on the screen. Which of the following types of programs would Sherry most likely use for this purpose a) word processing software b) math spreadsheet program c) Internet-based search engine d) computer-aided design program
What is d) computer-aided design program
300
Which of the following statements best explains why it is warmer at the equator than at the North Pole a) the equator has a larger area than the North Pole b)the equator is closer to the Sun than the North Pole c) the equator receives more direct sunlight than the North Pole d) the equator has more hours of daylight per year than the North Pole
What is c) the equator receives more direct sunlight than the North Pole
400
If a solid object is taken from Earth far into space, which of the following measurements of the object will change most a) density b) mass c) volume d) weight
What is d) weight
400
Which of the following materials are direct products of photosynthesis? a) fats and starches b) oxygen and sugar c) proteins and amino acids d) carbon dioxide and water
What is d) carbon dioxide and water
400
A student is given a sample of an unknown liquid to test in the laboratory. The student thinks that the liquid is water which of the following physical properties of the sample is most helpful to determine if the liquid is water a) color of the liquid b) mass of the liquid c) volume of the liquid d) boiling point of the liquid
What is d) boiling point of the liquid
400
Which of the following would be most effective in reducing air traffic congestion at a busy airport a) providing performance feedback to pilots b) providing flight information to passengers c) increasing the number of aircraft at the airport d) increasing the number of runways at the airport
What is d) increasing the number of runways at the airport
400
Which body system typically recognizes, attacks, and destroys foreign cells or substances that may cause disease a) digestive b) excretory c) immune d) respiratory
What is c) immune
500
Which of the following is the main reason water at the surface of the ocean is warmer than water at the bottom of the ocean a) water at the bottom of the ocean contains more dissolved solids b) water at the surface of the ocean absorbs more energy from the Sun c) friction is created by fast moving currents at the surface of the ocean d) wave actiontransfers heat from the bottom of the ocean to the surface
What is b) water at the surface of the ocean absorbs more energy from the Sun
500
A student prepared the following list of characteristics about a cellular organelle. present in animal cells present in plant cells helps make energy available to the cell Which of the following cellular structures is the student describing a) cell wall b) chloroplast c) mitochondrion d) nucleus
What is c) mitochondrion
500
Which of the following is produced when two or more elements combine in a chemical reaction a) atom b) compound c) mixture d) solution
What is b) a compound
500
During the construction of a new building, workers dug round holes in the ground and filled the holes with steel and concrete. Which of the following parts of the building was being built during this stage of construction a) the floor b) the foundation c) the plumbing d) the walls
What is b) the foundation
500
Which of the following statements best describes photosynthesis a) carbon dioxide and water are turned into sugar and oxygen b) sugar and oxygen are turned into water and carbon dioxide c) oxygen and carbon dioxide are turned into water and sugar d) water and sugar are turned into oxygen and carbon dioxide
What is a) carbon dioxide and water are turned into sugar and oxygen