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10 pt

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  1. Obj. 1 Obj. 2 Obj. 3 Obj. 4 Obj. 5 5 pt 5 pt 5 pt 5 pt 5 pt 10 pt 10 pt 10 pt 10 pt 10 pt 15 pt 15 pt 15 pt 15 pt 15 pt 20 pt 20 pt 20 pt 20 pt 20 pt 25 pt 25 pt 25 pt 25 pt 25 pt

  2. After reading the liquid level in the graduated cylinder, what must a student determine to calculate the density of the liquid? • A Color • B Boiling point • C Mass • D Temperature Slide 2

  3. C. MassThe formula for Density is Mass / Volume

  4. The graph shows temperature readings taken in a classroom over four days. Based on the table, the temperature at noon on Day 5 will most likely be — • A 17°C • B 18°C • C 20°C • D 21°C

  5. D. 21 degreesDay 2, 3, and 4 all had temperatures of 21 degrees at noon

  6. 2. What is the major landform shown on the • topographic map above? • A River • B Hill • C Plain • D Lake

  7. B. HillThe top of the hill is 700 meters above sea level.

  8. . The model above is set up to show how a lunar eclipse occurs. What is the greatest limitation of this model? A. The light bulb is standing straight up instead of tilted on an axis. B. Comparative sizes and distances are inaccurate. C. The shadow is being cast in the wrong direction. D. The heat released is much less than that released by the sun.

  9. B. Comparative sizes and distances are inaccurate.The Sun is much larger than the Earth, and in this model the Earth is too close to the Sun.

  10. A foam dart is thrown toward a dartboard. The graph represents its motion. At about what speed is the dart traveling when it hits the dartboard, 7 meters from the starting point? A. 6.3 m/s B. 6.9 m/s C. 7.2 m/s D. 7.4 m/s

  11. 6.3 m/sThe question says the target is 7 meters from the starting point. You have to predict where the line would be at 7 meters.

  12. Which molecule in the equation represents food energy made by plants? A Carbon dioxide B Water C Glucose D Oxygen

  13. C. GlucoseWater and Carbon dioxide are the reactants. Glucose (a type of sugar) and oxygen are the products of this chemical equation.

  14. In the food web, which of the following organisms transfer the largest total amount of energy to other organisms? A Phytoplankton B Seabirds C Fish D Krill

  15. PhytoplanktonPhytoplankton are producers (plants), and producers hold the largest amount of energy.

  16. Which of the following shows the most logical sequence of parts to a system?A. organ → cell  tissue → organismB. frog → skin → retina → neuronC. consumer → food chain → food web → ecosystemD. grass → robin → mushroom → bear

  17. C. consumer → food chain → food web → ecosystem Because it is organized from least to most complex

  18. Glucose molecules contain stored energy for plants. Glucose is made from carbon dioxide and water molecules during photosynthesis. What kind of energy do plants use to make glucose molecules? A. Electrical B. Sound C. Light D. Kinetic

  19. C. LightLight energy from the sun is used in photosynthesis.

  20. A woman is suddenly awakened by the smell of smoke and fire coming from the next room. She flees from the burning building. This situation illustrates the interaction of the –A. Digestive and circulatory systemsB. Respiratory and circulatory systemsC. Endocrine and integumentary systemsD. Nervous and muscular systems

  21. D. Nervous and muscular systemsThe sense of smell from the nervous system helped detect smoke, and muscles helped her run out of the house.

  22. Which of the following is an example of a chemical property?A DensityB ShapeC ColorD Flammability

  23. D. FlammabilityDensity, Color, and Shape are Physical properties

  24. The equation above shows the chemical reaction for burning coal. Which of the following best explains the reaction represented by this equation? A Carbon dioxide gas breaks down into solid carbon and oxygen gas. B Solid carbon reacts with oxygen gas to produce carbon dioxide gas. C Solid carbon, oxygen gas, and carbon dioxide gas react to form products. D Oxygen gas heats solid carbon, melting the carbon into a liquid.

  25. B. Solid carbon reacts with oxygen gas to produce carbon dioxide gas.

  26. Which of the following is an example of a chemical reaction?A. A magnet separates iron filings from sand.B. A kettle boils water.C. A candle burns on a birthday cake.D. A spoonful of sugar dissolves in water.

  27. C. A candle burns on a birthday cake.Anything burning produces smoke which is a new substance. It is evidence of a chemical change.

  28. Based on the periodic table, which of the following elements has properties most like neon’s? A Hydrogen (H)B Fluorine (F) C Krypton (Kr) D Sodium (Na)

  29. C. Krypton (Kr)Krypton and Neon are both in the same column on the periodic table. This indicates they have similar properties.

  30. Which letter in this model of a boron atom represents a proton? A.W B. X C. Y D. Z

  31. C. YProtons have a positive charge and are found in the nucleus of an atom.

  32. Diesel fuel is used in the engines of the machines and trucks. Which of these is the main energy transformation as the fuel is used by the engines? A. Electrical energy is converted to heat energy.B. Heat energy is converted to potential energy.C. Electrical energy is converted to kinetic energy.D. Chemical energy is converted to kinetic energy.

  33. D. Chemical energy is converted to kinetic energy.Fuel holds chemical energy, and it allows the truck to move (kinetic).

  34. Iron has a higher specific heat than silver. If 1 g of each metal is heated equally and placed into equal amounts of tap water, what will happen? A. Neither metal will cause a change in the water’s temperature. B. The silver will cause a greater change in the water’s temperature. C. Both metals will cause the same change in the water’s temperature. D. The iron will cause a greater change in the water’s temperature.

  35. B. The silver will cause a greater change in the water’s temperature.The silver has lower specific heat so it will more easily transfer heat to the water.

  36. Which of the following is not an example of kinetic energy being converted into potential energy? A. A basketball player jumping for a rebound. B. Releasing a compressed spring. C. Pulling a sled uphill. D. A swing moving forward.

  37. C. Pulling a sled uphill.The higher the sled gets on the hill, the more potential energy it will hold.

  38. The graph shows the movement of a car over time. What is the car’s average speed? A. 10 kilometers per hour B. 15 kilometers per hour C. 30 kilometers per hour D. 60 kilometers per hour

  39. B. 15 kilometers per hourAverage speed = distance / timeIn the graph, follow the line. Divide the distance by time and you will get 15km/hr.

  40. The girl in the picture above is using a lever to lift a heavy box. Using the lever makes the girl’s task easier by — • A. reducing the input force • B. reducing the box’s mass • C. increasing the amount of work done • D. increasing the distance the box is lifted

  41. reducing the input forceSimple machines make work easier.

  42. The Northern Hemisphere would most likely experience summer conditions when the Earth is at _______________. A. Position A B. Position B C. Position C D. Position D

  43. C. Position CThe tilt of the Earth creates seasons. The northern hemisphere experiences summer when it is tilted toward the Sun.

  44. The diagram shows the moon orbiting Earth. An observer on Earth sees different phases on different dates. Which of the following dates is closest to the new-moon phase? A April 23 B April 27 C May 8 D May 16

  45. D. May 16The Earth has a new moon when the moon is between the Earth and the Sun.

  46. During Phase X of the lunar cycle, the moon reflects to the Earth _________. A. a large amount of light B. the same amount of light as in Phase Y C. a crescent shape of light D. little or no light

  47. D. little or no lightThe moon at position X is a “New Moon”. A new moon appears dark to people on Earth.

  48. In order from largest to smallest, which is correct?A. galaxy  solar system  universe  starB. universe  galaxy  solar system  star  planetC. planet  star  solar system  galaxy  universeD. universe  planet  solar system  moon star

  49. B. universe  galaxy  solar system  star  planetThese are organized from largest to smallest.

  50. Suppose pressure along a fault line builds up. Eventually the rocks along the fault line shift positions. What will be the effect of this event?A. A hot spot will form.B. A tsunami will form.C. An earthquake will form.D. A volcanic eruption will occur.

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