1) A wagon is pushed in a straight line. How would an increase in friction on the wagon wheels affect the wagon? a) It would cause the wagon to move faster. b) B It would cause the wagon to change mass. c) It would cause the wagon to change direction. d) It would cause the wagon to slow down. 2) A runner measured the time it took him to run 5 km. What can he calculate from the distance and time measurements? a) direction b) mas c) speed d) force 3) Which best explains why a bicycle slows down when its brakes are applied? a) The brakes heat the rubber on the bicycle tires. b) The brakes add energy to the bicycle. c) The brakes increase the force of gravity on the bicycle. d) The brakes cause frictional forces on the wheels of the bicycle. 4) When the sun warms water, which resulting process occurs? a) precipitation b) runoff c) evaporation d) condensation 5) Students observed a piece of iron change from shiny to rusty. What caused this change? a) a chemical reaction b) a physical reaction c) a heat reaction d) a cold reaction 6) Which is the best example of the transfer of heat by radiation? a) water boiling b) a hot air balloon rising c) ice melting d) a lightbulb glowing 7) Jason fills a glass container completely with water and screws the lid on tightly. He places the container in a freezer. Which will most likely result? a) The container will prevent the water from freezing. b) The water will freeze and take up less space in the container.The container will absorb heat from the water, causing it to crack. c) The water in the container will expand when it freezes and cause the container to crack. d) The container will absorb heat from the water, causing it to crack. 8) Which is most responsible for the changes in seasons? a) the jet stream b) the distance from Earth to the sun c) the ocean currents d) the tilt of Earth on its axis 9) Which type of animal usually eats both producers and consumers? a) an omnivore b) a carnivore c) a herbivore d) a predator 10) In North Carolina, the wind is blowing from the north. If the wind changes direction and begins to blow from the south, what will most likely result? a) The temperatures will increase. b) The temperatures will decrease. c) The air pressure will increase. d) The wind speeds will decrease. 11) Which best explains why a storm that affects an area in the western United States may affect an area in the eastern United States a few days later? a) The jet stream winds blow storms from east to west. b) The jet stream winds blow storms from west to east. c) Cool Gulf Stream water causes storms to form in the east. d) Warm Gulf Stream water causes storms to form in the west. 12) Which is a characteristic of most single-celled organisms? a) They have a complex nervous system. b) They contain several different types of cells. c) They perform all life processes. d) They have a circulatory and a respiratory system. 13) Which statement best describes how a multicellular organism survives? a) Every cell carries out the same functions for the survival of the organism. b) The cells all have the same structures that allow the organism to survive. c) All life processes are performed by each cell for the survival of the organism. d) The cells have different functions, and together they are essential for the survival of the organism. 14) What is the relationship between the respiratory system and the circulatory system? a) The respiratory system exchanges oxygen and carbon dioxide with the circulatory system. b) The respiratory system exchanges oxygen and carbon monoxide with the circulatory system. c) The respiratory system exchanges oxygen and sugar with the circulatory system. d) The respiratory system exchanges oxygen and nitrogen with the circulatory system. 15) In what way are the digestive and circulatory systems alike? a) Both protect organs in the body. b) Both control movement of the body. c) Both absorb gases or nutrients into the body. d) Both provide structural support for the body. 16) Which has the greatest effect on the amount of salt in a salt marsh? a) the number of animals living in the marsh b) the closeness of the marsh to the ocean c) the depth of the water in the marsh d) the temperature of the water in the marsh 17) Which classification best describes herbivores? a) producers b) consumers c) predators d) decomposers 18) What will be most affected if the decomposers in an ecosystem are removed? a) the spread of disease b) the availability of water c) the quality of the soil d) the distribution of organisms 19) A mother rabbit has a litter. One of the babies is born with one long ear and one short ear. What most likely caused this one rabbit to be born with one short ear? a) The mother rabbit had previously lost an ear in an accident. b) The mother rabbit became sick before she gave birth. c) A mutation occurred during the development of this one rabbit. d) This one rabbit received less nutrition than the other rabbits before it was born. 20) Which is an example of a trait that is inherited? a) dimples b) intelligence c) weight d) favorite color 21) A ball is kicked and rolls along a level field until it comes to a stop. What is most responsible for the ball coming to a stop? a) air b) gravity c) mass d) friction 22) If a car is moving backward along a road, can its speed be measured? a) Yes, it can, because the car does not have friction acting on it. b) Yes, it can, because the car travels a distance in a certain amount of time. c) No, it cannot, because speed can only be measured if the car is moving forward. d) No, it cannot, because the distance traveled backward by a car cannot be measured. 23) Scientists discover an asteroid that is moving through space. What information is needed to determine the average speed of the asteroid? a) the mass and size of the asteroid b) the distance the asteroid is from Earth c) the direction the asteroid is moving and its distance from Earth d) how far the asteroid has moved in 24 hours 24) One morning, a student notices that the grass in the area is wet, although it had not rained during the night. What could have caused the grass to be wet? a) During the night, water had evaporated from the trees in the area. b) The air above the ground became warmer during the night and caused precipitation. c) When the air cooled above ground during the night, water vapor condensed on the grass. d) The grass soaked up water from the ground during the night. 25) Two liquids are poured together, and a solid substance forms with no liquid remaining. Liquid 1 has a mass of 200 grams, and liquid 2 has a mass of 100 grams. What would be the total mass of the solid substance formed? a) 100 grams b) 150 grams c) 250 grams d) 300 grams 26) Which is the best example of a new substance forming? a) lighting a match b) cutting a piece of paper c) popping a balloon d) hitting a nail with a hammer 27) Stirring a cup of hot tea causes a metal spoon to get warm. Which statement best explains why the spoon gets warm? a) Heat energy transfers from the metal spoon to the hot liquid. b) Heat energy transfers from the hot tea to the spoon. c) Heat energy transfers from the air to the hot liquid, and then to the spoon. d) Heat energy transfers from the hot liquid to the cup, and then to the spoon. 28) Which material is best used to keep cold drinks from getting warm too quickly? a) glass, because it is a good conductor of heat b) foam, because it is a poor conductor of heat c) metal, because it radiates heat d) paper, because it conducts heat 29) Which best describes the cause of day-to-day weather changes? a) the rotation of Earth b) the size of Earth c) moving air masses d) action of the winds 30) Students report that the sky in their area has mostly cirrus clouds. What are most likely the weather conditions in the area? a) rainy b) cold c) windy d) fair

EOG Prep #1

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