3. A: Forming a testable hypothesis C: Exposing the plants to sunlight. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A student hypothesizes that feeding plants miracle grow will make them grow faster. She picks four different kinds of plants: a cactus, a daisy, a rose, and a lily. She feeds the cactus and daisy Miracle Grow. She feeds the rose and lily normal plant food. What could she have done to improve her experiment? D: Feeding only the cactus miracle grow. B: Using only one type of plant.
7. A: 51.24x10^2 C: 5.124x10^-3 D: 512.4x10^2 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 You measure the length of the classroom to be 5124 inches. If you want to record this length in scientific notation, which of the following should you write? B: 5.124x10^3
9. A: They lose energy and move more slowly. C: They gain energy and move more slowly. B: The lose energy and move faster. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Kool Aid is heated from 24 degrees C to 50 degrees C. What happens to the molecules in the Kool Aid during the heating process? D: They gain energy and move faster.
11. A: Because it colder than the water. C: Because it has less energy then the water. D: Because it is heavier than the water. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Why does ice float in water? B: Because it is less dense than the water.
14. A: Freezing them to see if they have different freezing points. B: Weighing them to see if they have different densities. D: Observing them to see if they are the same color. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 You have two pieces of metal. You decide to test their chemical properties to compare them. Which of these tests involves chemical properties? C: Burning them to see if they are flammable.
16. A: A Bunsen burner and a ruler. B: A balance and a Bunsen burner. D: A ruler and a graduated cylinder. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Which of these tools would be the best choice for finding the density of a coin? C: A graduated cylinder and a balance.
18. A: 3.1 x 10^3 C: 3.1 x 10^-8 D: 3.1 x 10^-9 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 Philadelphia is 310,000,000 miles from Jupiter. How would you write this in number in scientific notation? B: 3.1 x 10^8
20. A: Accurate and precise. B: Accurate and not precise. D: Not accurate and not precise. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 You want to measure the length of a desk. You can’t find a tape measure, so you must use a small ruler. You measure the table 4 times and get 4 different lengths: 86cm, 87cm, 86cm, and 85 cm. Your teacher tells you that the desk is 100 cm long. Your answers were: C: Precise and not accurate.
25. C : Place the same amount of liquid A and liquid B in two different beakers, and chill beaker B until it freezes. Record the temperatures of both liquids using a thermometer. B : Placing liquid A in beaker and chill it until it freezes, then record the temperature using a thermometer. D: Place 500 mL of liquid B into the same beaker. Chill the liquid until it freezes and record the temperature using a thermometer. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A student hypothesized that liquid A has a lower freezing point than liquid B. How can she properly test this hypothesis? A: Place the same amount of liquid A and liquid B in two different beakers until it freezes, and record the temperature using a thermometer.
27. C: Volume of water and crystal size should vary, while all other factors should remain constant. B: All factors should be kept constant. D: Crystal size and mass of salt should vary, while all other factors should remain constant. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A lab group hypothesizes that different sizes of salt crystals will affect the boiling point of water differently. When testing this hypothesis, which factors should the group vary and which factors should they keep constant? A: Crystal size should vary, while all other factors should remain constant.
29. A: It decreases C: It is unchanged D: It decreases at first, but then gradually increases. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 If the volume of a gas decreases while the temperature is held constant, what happens to the pressure of the gas? B: It increases
31. A: The gas particles speed up and leave the balloon. C: The gas particles become heavier and sink to the bottom of the balloon. D: The gas particles stop moving. 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 A student blows up a balloon and then puts it in ice water. Why does lowering the temperature of the gas particles in the balloon change the volume of the balloon? B: The gas particles slow down and hit the sides of the balloon less frequently.
33. A: A suspension C: A colliod D: An element 50:50 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 $1 Million $500,000 $250,000 $125,000 $64,000 $32,000 $16,000 $8,000 $4,000 $2,000 $1,000 $500 $300 $200 $100 If chlorine dissolves in water, what type of substance forms? B: A solution
34. YOU WOULD WIN $1 MILLION DOLLARS BUT WE DON’T HAVE ANY MONEY! WANT CANDY?
