Halloweenunit26thgrade

1. It is Halloween. You are entering a haunted house. Get the right answer and you can continue. Make one mistake and you are in trouble.

2. What is the atomic number for silicon? A 14.0 B 14.1 C 28.1 D 42.1

3. You are correct. You may continue. The atomic number is always listed on top.

4. What is the atomic mass of boron? a. 10.81 b. 5c. 3

5. You are correct. You may continue. The atomic mass is always listed on the bottom.

6. What is the atomic mass of oxygen? a. 10.81 b. 16.00 c. 8

7. You are correct. You may continue. The atomic number is always on the bottom.

8. What is the atomic mass of calcium? a. 10.81 b. 16.00 c. 40.08 d. 8

9. You are correct. You may continue. The atomic number is always on the bottom.

10. Which are the reactants? Na + Cl  NaCl a. NaCl b. Na and Cl c. None

11. You are correct. You may continue.

12. Which is the product? Na + Cl  NaCl a. NaCl b. Na c. Cl

14. Which has the physical property of a clear color and a sour taste? a. water b. vinegar c. Baking soda

16. Which has the physical property of a white color and odorless? a. water b. vinegar c. baking soda

18. Which has the physical property of a gas with colorless and sour taste? a. water b. Carbon dioxide c. Baking soda

20. Which have the physical property of colorless and odorless? a. water b. vinegar c. Baking soda

22. Which will react the fastest when mixed with water? A A whole Alka -Seltzer tablet B An Alka -Seltzer tablet broken into four pieces. C An Alka -Seltzer tablet broken in half. D An Alka -Seltzer crushed into a powder.

24. Cody has a piece of Aluminum, which he mixes with acid to make a reaction. How can he speed up the reaction? A Put the Aluminum in the acid in one whole piece. B Fold the Aluminum in half before he puts it in the acid. C Ball the Aluminum up into a giant ball before he puts it in the acid. D Cut the Aluminum into tiny pieces before he puts it in the acid.

26. A scientist has two samples of the same chemical: one sample is a solid block, and the other sample is a powder. The scientist puts the solid block in a beaker of water and observes a reaction. What would most likely happen if the scientist placed the powdered sample into a different beaker of water? A No reaction would occur. B A completely different reaction would occur. C The same reaction would occur but at a faster rate. D The same reaction would occur but at a slower rate.

28. Which one is an element on the chart? a. thiaminb. niacinc. Vitamin B6 d. magnesium

30. Which one is an element on the chart? a. riboflavinb. niacinc. vitamin A d. potassium

32. Which one is an element on the chart? a. sugarb. protein c. sodium d. folate

34. Which one is an element on the chart? a. zinc b. riboflavinc. vitamin C d. folate

36. Which one is an element on the chart? a. fatb. thiamin c. calcium d. vitamin A

38. Which one is an element on the chart? a . potassium b. cholesterolc. vitamin Cd. protein

40. Bryson burns a piece of paper, and observes that the reaction gives off heat and light. What kind of reaction is taking place? A Exothermic, because heat is released . B Endothermic, because heat is released. C Exothermic, because heat is absorbed. D Endothermic, because heat is absorbed.

42. Antoinette mixes two chemicals together in a giant beaker, and observes that the reaction gets colder as it sucks in heat from the room. What kind of reaction is this? A Exothermic, because heat is released. B Endothermic, because heat is released. C Exothermic, because heat is absorbed. D Endothermic, because heat is absorbed.

44. Terrance puts a thermometer in a jar. It reads 20ºC. Then, he adds 2 chemicals to the jar. The thermometer changes to read 25ºC as the chemical reaction occurs. a. What kind of reaction is this? A Exothermic, because heat is released . B Endothermic, because heat is released. C Exothermic, because heat is absorbed. D Endothermic, because heat is absorbed.

46. Deja puts a thermometer into a jar. It reads 30ºC. Then, she adds two chemicals to the jar. The thermometer changes to read 19ºC as the chemical reaction occurs. A. Exothermic, because heat is released. B Endothermic, because heat is released. C Exothermic, because heat is absorbed. D Endothermic, because heat is absorbed.

48. Which is a physical property? a. Blue Color b. Reacts with acid to form a gas c. Reacts with base to form water

50. Which is a chemical property? a. Blue Color b. Reacts with acid to form a gas c. Sour tastes d. Melting point e. Density

52. Which is a chemical change? a. ice melting b. Water is heated and changed into steam . c. Iron rusts

54. Metals are a. good conductors b. bad conductorsc. materials where electrons can not flow freely

56. Nonmetals are a. good conductors b. bad conductors c. materials where electrons flow freely

58. Metals have a. low resistance b. high resistance c. low conductivity

60. Nonmetals have a. a high resistance b. a low resistancec. high conductivity

62. What would you use to transfer electrical energy from a power plant to your house? A. metalbecause it has a high resistanceb. nonmetal because it has high resistancec. nonmetal because it has low resistance d. metal because it has a low resistance

64. What would you use to insulate (put around to keep safe) an electrical wire? A. metalbecause it has a high resistance b. nonmetal because it has high resistance c. nonmetal because it has low resistance d. metal because it has a low resistance

66. How many electron does Helium have? a. 2 b. 4c. 8

68. How many protons does Helium have? a. 2 b. 4c. 8

70. How many neutrons does Helium have? a. 2 b. 4c. 8

71. You are correct. You may continue. The number of neutrons is the atomic mass- atomic number.

73. You are correct. You may continue. It has 2 electrons, 2 protons, and 2 electrons.

74. How many protons does lithium have? a. 2 b. 3 c. 6.941

75. You are correct. You may continue. Remember the number on top is the atomic number that tells you the number of protons and electrons. The number of protons is always the same number as the number of electrons.

76. How many electrons does lithium have? a. 2 b. 3 c. 6.941

78. How many neutrons does lithium have? a. 7b. 3 c. 4

80. This is a picture of a. lithium b. helium c. boron

82. If I know an element has 2 protons, then I know it has a. 4 electrons b. 2 electrons c. 8 electrons

83. You are correct. You have made it through the haunted house. You may click here to start over.

84. You are wrong. A ghost takes you to your demise.

94. You are wrong. A witch takes you for a ride on her broom and you fall off.

105. You are wrong. The jack-o-lanterns come alive and get you.

106. You are wrong. The mummy wraps you up and you can’t get out.

107. You are wrong. The jack-o-lanterns come alive and get you .

113. You are wrong. The mummy wraps you up .

115. You are wrong. The jack-o-lanterns come alive and get you .

117. You are wrong. The monster finds you.

130. You are wrong. The vampire bites your neck.

134. You are wrong. The vampire bites your neck .

142. You are wrong. You become a werewolf’s dinner.

Halloweenunit26thgrade

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