- Earth Science (36)
- Earth’s System (14)
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- Human Sustainability (15)
- HSus 1: Forecasting Disasters (MS) (1)
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- Natural Selection & Evolution (21)
- Structure and Function (47)
- Inheritance & Variation of Traits (28)
- Non-NGSS Articles (26)
- Physical Science (49)
- Chemical Reactions (22)
- CR 1: Determining Chemical Reactions (MS) (5)
- CR 1: Predicting Reactions (HS) (5)
- CR 2: Energy in Reactions (HS) (8)
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- Energy (11)
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- E 2: Energy & Motion (HS) (4)
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- Forces & Interactions (13)
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- Structure & Properties of Matter (32)
- Waves & Electromagnetic Radiation (16)
- Chemical Reactions (22)
