Matter and Forces
What are the characteristics of the metal pieces of this satellite?
A. Brittle, good conductors, and dull in color.
B. Soft, flexible, and are great insulators.
C. Brittle, weak, and they are good insulators.
D. Easily pounded into sheets, can be pulled into shapes of wires, and conducts heat and electricity.
D. Easily pounded into sheets, can be pulled into shapes of wires, and conducts heat and electricity.
Where would a magnifying glass have the most potential energy in reference to the same cactus?
A. On top of the cactus.
B. Half-way down the cactus.
C. Almost on the ground next to the cactus.
D. On the ground next to the cactus.
A. On top of the cactus.
Which best describes an arctic fox and a polar bear both hunting mice in the same area?
A. Parasitism
B. Mutualism
C. Competition
D. Commensalism
C. Competition
When moss reproduces by spores, how is this linked to the offspring of moss plants?
A. The offspring can be very different than the parent.
B. The offspring is identical to the parent.
C. Pollination allows variety among offspring.
D. Fruit allows variation among offspring.
B. The offspring is identical to the parent.
What best allows the planets to orbit our Sun?
A. The tilt of axis of the planets.
B. The pull of gravity of the Sun on the planets.
C. The push of gravity of the Sun on the planets.
D. The power of light rays from the Sun on the planets.
B. The pull of gravity of the Sun on the planets.
Carbon dioxide (clear gas) and water (clear liquid) are converted into sugar (white solid) during photosynthesis. What type of change occurred?
A. Physical, a new substance was formed.
B. Physical, a mixture was formed.
C. Chemical, a new substance was formed.
D. Chemical, a solution was formed.
C. Chemical, a new substance was formed.
A grasshopper, chick, rabbit, and donkey are all traveling at the same exact speed. Which one has the most kinetic energy?
A. Grasshopper
B. Chick
C. Rabbit
D. Donkey
D. Donkey
Which best explains the cycle of carbon in a rain forest?
A. Plants give animals carbon dioxide, while animals give plants oxygen.
B. Plants give fungus carbon dioxide, while fungus give plants oxygen.
C. Fungus give animals oxygen, while animals give fungus carbon dioxide.
D. Animals eat plants, while plants obtain carbon dioxide from animals.
D. Animals eat plants, while plants obtain carbon dioxide from animals.
Which of the following best allows a variation of flower colors of a plant?
A. Use of spores.
B. Use of regeneration.
C. Use of flowers and seeds.
D. Use of budding.
C. Use of flowers and seeds
Why are temperatures at a desert by the equator higher than the north and south poles?
A. The equator receives less direct sunlight.
B. The equator has more water.
C. The north and south poles receive more direct sunlight.
D. The north and south poles receive less direct sunlight.
D. The north and south poles receive less direct sunlight.
Car 1 is moving and hits car 2 that is not moving. Which of the following is the result?
A. The force of car 1 will cause car 2 to accelerate forward.
B. The force of car 1 will cause car 2 to decelerate forward.
C. The area of car 1 will cause car 2 to accelerate forward.
D. The speed of car 1 will cause car 2 to decelerate forward.
A. The force of car 1 will cause car 2 to accelerate forward.
Which types of waves best allow bats to fly and find food in the dark at night?
A. Light
B. Sound
C. X-Rays
D. Magnetic
B. Sound
Which best explains the low variety of life in areas of sand dunes?
A. High Levels Sunlight, Low Water Supply.
B. Low Levels Sunlight, High Water Supply
C. Low Levels Sunlight, Low Water Supply.
D. High Nutrients in Soil, High Levels Sunlight.
A. High Levels Sunlight, Low Water Supply.
What would allow a green grasshopper to survive best in a green environment?
A. Learned Behavior
B. Instinct
C. Reflex
D. Camouflage
D. Camouflage
Which of the following would most likely cause beach erosion?
A. Adding artificial reefs.
B. Addition of vegetation on or near the beach.
C. Removal of vegetation on or near the beach.
D. Planting mangrove trees on the coast of the beach.
C. Removal of vegetation on or near the beach.
Which of the following is the best example of two non-contact forces acting on each other?
A. Heating an iron pan on a hot stove.
B. Two magnets of same charge pushing away from each other.
C. A man pushing on a wall and the wall is not moving.
D. A ball bouncing off the ground.
B. Two magnets of same charge pushing away from each other.
Which term best describes this diagram?
A. Diffraction
B. Rarefaction
C. Reflection
D. Absorption
C. Reflection
Which of the following will improve the ecosystem of a swamp?
A. Create dams by the swamp.
B. Filter water entering the swamp.
C. Drain the water and build houses.
D. Increase fertilizer by streams which feed the swamp.
B. Filter water entering the swamp.
Which characteristics best allows a cactus to survive in a desert?
A. Very shallow roots and flat leaves.
B. Thick roots and no flowers.
C. Waxy coating and spines.
D. Ability to filter out salt and avoiding pollination.
C. Waxy coating and spines.
Which formation of rocks would most likely prevent the formation of fossils?
A. Evaporation of water, leaving minerals.
B. Cooling of magma, forming rocks.
C. Sediments piling on top of each other forming sedimentary rock.
D. Sap of a tree surrounding insects forming amber.
B. Cooling of magma, forming rocks.
When water is heated to its boiling point, the molecules of the water __________ .
A. Separate from each other and become a gas.
B. Move closer together and become a gas.
C. Separate from each other and become a liquid.
D. Reduce in vibrations and become a solid.
A. Separate from each other and become a gas.
As an acorn drops from a branch of a tree to the ground, ______.
A. Kinetic energy is converted into potential energy.
B. Potential energy is converted into kinetic energy.
C. Kinetic energy is reduced.
D. Potential energy is increased.
B. Potential energy is converted into kinetic energy.
Which organelle in plant cells allows a plant to stand up strong even though it does not have bones?
A. Nucleus
B. Mitochondria
C. Chloroplasts
D. Cell Walls
D. Cell Walls
Mr. Crowley placed the same species of cattails in the same water and soil in a closet, dark room, a medium lit room, and next to a window. What was he testing in relation to growth?
A. Nitrogen
B. Nutrients
C. Water
D. Light
D. Light
Which scientific tool would best be used to collect samples of pond water?
A. Test Tubes
B. Electronic Scale
C. Magnet.
D. Magnifying Glass.
A. Test Tubes