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Fossils and Geologic Time

Sequences Lessons Materials Videos

Science & Engineering

Earth Science & Astronomy

Fossils and Geologic Time

Sequences Lessons Materials Videos

Sequences Lessons Materials Videos

Fossil formation processes, stratigraphy, and the division of Earth's history into eons and eras. Connects biological evolution to major geological shifts and mass extinction events.

Fossils and Geologic Time • Library • Lenny Learning

Science & Engineering Life Science Living Things Animals Plants Body Systems Traits Adaptations Cells Ecosystems Heredity Genes to Traits Cell Division Physics Comparing Materials Shapes and Properties Magnets Magnetism Light Sound Light and Sound Matter States of Matter Changes of State Mixtures Physical and Chemical Change Heating and Cooling Heat and Thermal Energy Energy Force and Motion Electrical Circuits Atoms and Molecules Periodic Table Motion in One Dimension Motion in Two Dimensions Scalars and Vectors Forces and Laws of Motion Circular Motion and Gravity Momentum and Impulse Work, Energy, and Power Waves Electromagnetic Waves Geometric Optics Electricity and Magnetism Simple Harmonic Motion Thermodynamics Nuclear Physics Earth Science & Astronomy Weather Water Cycle Rocks and Minerals Fossils Earth's Features Earth's Resources Earth's Structure Weather and Climate Earth Events Fossils and Geologic Time Plate Tectonics Human Impacts Astronomy Chemistry Units and Measurement Atomic Structure Periodic Trends Chemical Bonding Nomenclature Molecular Structure Intermolecular Forces The Mole Stoichiometry Properties of Gases Solutions Chemical Reactions Balancing Equations Energy Changes Rates of Reactions Equilibrium Acids and Bases Quantum Model Biology Classification Cell Structure The Chemistry of Life Biomolecules Cellular Transport Cell Energy Cell Growth and Division DNA Protein Synthesis Meiosis and Sexual Reproduction Patterns of Inheritance Multicellular Organisms Evolution Ecology Biodiversity Computer Science Algorithms and Computational Thinking Programming Languages Computing Systems Networks and Internet Data Analysis Cybersecurity AI and Machine Learning Software Design and Development Blockchain Engineering & AI Designing Experiments Engineering Practices Design Thinking Engineering Design Process Mechanical Engineering Electrical Engineering Materials and Structures CAD and 3D Design Robotics Artificial Intelligence Basics Vibe Coding Machine Learning AI Ethics and Society Systems Thinking Entrepreneurship & Innovation Entrepreneurial Mindset Business Idea Development Business Plan Basics Marketing & Customer Discovery Financial Management for Startups