Grade and Topic (9-12)
Find topics by grade level and topic.
HS Physical Science
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Valence Electrons and Properties of Elements
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Simple Chemical Reactions
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Electrical Forces and Bulk Scale Structure
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Total Bond Energy Change in Chemical Reactions
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Collision Theory and Rates of Reaction
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Increased Products Design Solution
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Conservation of Atoms in Chemical Reactions
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Fission, Fusion, and Radioactive Decay
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Newton's Second Law of Motion
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Conservation of Momentum
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Reducing Force in Collisions Device
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Gravitational and Electrostatic Forces Between Objects
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Electric Current and Magnetic Fields
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Molecular-Level Structure of Designed Materials
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Energy Change in Components of a System
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Macroscopic Energy Due to Particle Position and Motion
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Energy Conversion Device Design
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The Second Law of Thermodynamics
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Energy Change Due to Interacting Fields
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Wave Properties in Various Media
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Digital Transmission and Storage of Information
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Wave-Particle Duality of Electromagnetic Radiation
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Absorption of Electromagnetic Radiation
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Waves and Information Technology
HS Life Science
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Interacting Body Systems
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Feedback Mechanisms and Homeostasis
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Cellular Division and Differentiation
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Photosynthesis and Energy Transformation
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Formation of Carbon-Based Molecules
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Cellular Respiration and Energy Transfer
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Carrying Capacity of Ecosystems
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Biodiversity and Populations in Ecosystems
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Aerobic and Anaerobic Cycling of Matter
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Biomass and Trophic Levels
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Cycling of Carbon in Ecosystems
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Ecosystem Dynamics, Functioning, and Resilience
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Human Impact Reduction Solution
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Social Interactions and Group Behavior
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Chromosomal Inheritance
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Inheritable Genetic Variation
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Variation and Distribution of Traits
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Evidence of Common Ancestry and Diversity
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Four Factors of Natural Selection
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Adaptation of Populations
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Natural Selection Leads to Adaptation
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Environmental Change - Speciation and Extinction
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Human Impact on Biodiversity Solution
HS Earth and Space Science
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Nuclear Fusion and the Sun's Energy
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The Big Bang Theory
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Stellar Nucleosynthesis
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Orbital Motions
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Evidence of the Earth's History
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The Creation of Landforms
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Feedback in Earth's Systems
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Cycling of Matter in the Earth's Interior
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Energy Variation and Climate Change
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Interactions of the Hydrologic and Rock Cycles
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Carbon Cycling in Earth's Systems
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Coevolution of Life and Earth's Systems
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Global Impacts on Human Activity
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Cost-Benefit Ratio Design Solutions
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Biodiversity, Natural Resources, and Human Sustainability
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Reducing Human Impact Design Solutions
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Climate Change and Future Impacts
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Human Impacts on Earth Systems