5.10C

131–140

66. Deltas

67. Land Formation

68. Valley

69. Sand Dunes

70. Processes and Agents

5.11

141–150

71. STEM Recycling

72. A Series of Events

73. Plastic Bags

74. Solving Problems with EDP

75. Environmental Solutions

Organisms and Environments

151–200

5.12A

151–160

76. Organism Observations

77. Factor Interactions

78. Biotic vs. Abiotic Interactions

79. Lions

80. Building a Terrarium

5.12B

161–170

81. Algae Growth

82. Burmese Pythons

83. Human Impact

84. Food Web What Ifs

85. Hours of Energy

5.12C

171–180

86. Beneficial vs. Harmful

87. Wildfire Effects

88. Flooding Effects