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  • Bill Nye, the Science Guy: Weathering and Erosion

    Science → Earth Science → Erosion
    Science → Earth Science → Weathering
    Bill Nye is obssessed with erosion and explains that rocks change over time. He explains what causes weathering (although he calls it erosion): water, ice, wind, sand, and chemicals. He illustrates the process of erosion in his lab.

  • Bill Nye, the Science Guy: El Nino

    Science → Earth Science → Ocean Currents
    Science → Oceanography → El Nino
    Bill explains how the ocean affects climates in different parts of the world. He mentions the Gulf Stream and how it keeps Britain much warmer it would be otherwise. He also explains El Nino and how it affects the climate of the Americas.

  • Bill Nye, the Science Guy: The Sun

    Science → Astronomy → Sun
    Science → Astronomy → Solar Eclipse
    Bill Nye provides some interesting facts about the Sun and sheds some light on solar eclipses.

  • Bill Nye, the Science Guy: Time-keeping Motion Machine of Science

    Science → Astronomy → Revolution
    Science → Astronomy → Rotation
    Math → Measurement → Time
    Bill explains how we measure time and mentions some of the tools we use to measure it. He notes that time measurements, such as days, months, and years, are based on astronomical events and uses a motion machine to illustrate the Earth's revolution around the Sun and the Moon's revolution around the Earth.

  • Bill Nye, the Science Guy: Air Keeps Us Warm

    Earth Science → Atmosphere → Atmospheric Temperature
    Earth Science → Atmosphere → Lapse Rate
    Bill Nye explains why it gets colder as one travels up through the atmosphere. He uses miniature replicas of a city and a mountain to support his explanation. Bill also briefly touches upon the lapse rate.