Science Trek

Season 20

Science Trek is an integrated Web and broadcast project designed to: introduce science topics to elementary-age schoolchildren; provide educational materials for teachers and parents; and inspire students to investigate science, technology, engineering and math (STEM) career potentials.

Where to Watch Science Trek • Season 20

18 Episodes

  • Volcanoes!
    E1
    Volcanoes!More than 80 percent of the Earth's surface came from volcanoes. How are they formed? What is the difference between magma and lava? What kind of volcanoes are there? Find out more about these explosive marvels of nature.
  • Volcanoes: What Makes a Volcano Different?
    E2
    Volcanoes: What Makes a Volcano Different?Reventedor in Ecuador and Kilauea in Hawaii are good examples of different types of volcanoes. What makes them differ? What tools do volcanologists use to study them?
  • Gravity!
    E3
    Gravity!Gravity is the force of attraction between two objects. It is what makes things fall and what keeps us from floating off into space. Gravity is a fundamental force of nature. How does it work?
  • Gravity: Four what?
    E4
    Gravity: Four what?Gravity is only one of the four fundamental forces in the universe. Find out more about all the forces that keep our universe changing.
  • The Brain: What's Inside Your Head
    E5
    The Brain: What's Inside Your HeadWhat weighs about three pounds and controls everything you do? Your brain. Learn more about what goes on inside your skull.
  • Sleep: Why Do We Need It?
    E6
    Sleep: Why Do We Need It?We spend about a third of our lives sleeping. Sleep rejuvenates our body and helps clean out our brain. But what is sleep? Scientists are studying why we sleep, why we can't sleep, and what sleep really means.
  • Kingdoms of Life: Kingdoms of Life explained, sort of
    E7
    Kingdoms of Life: Kingdoms of Life explained, sort ofScientists have a system to group all the living things so they can study them. One of the ways of grouping or classifying them is called the Kingdoms of Life. How many Kingdoms of Life there are is not an easy question to answer.
  • Kingdoms of Life: Sophie Gilbert: Wildlife Biologist
    E8
    Kingdoms of Life: Sophie Gilbert: Wildlife BiologistBiologists classify into the Kingdoms of Life as part of their job, but they do much more. Meet Sophie Gilbert, a wildlife biologist, as she spends a day capturing pictures of wildlife to study forest and animal health.
  • Heredity: Who are you?
    E9
    Heredity: Who are you?The passing down of traits from parent to child is called heredity, and the study of how those traits go from generation to generation is called genetics. We start by learning what DNA and genes are and how they make us who we are.
  • Heredity: Genetic Detectives
    E10
    Heredity: Genetic DetectivesKT Curry is a genetic counselor. Follow her and other genetic detectives through their day as she helps families learn more about their genetic history and what that means for their futures.
  • Mars: The Red Planet Revealed
    E11
    Mars: The Red Planet RevealedMars is one of our closest neighbors in the solar system. Find out more about the Red Planet.
  • Mars: Exploring Mars
    E12
    Mars: Exploring MarsWe first saw pictures of the surface of Mars in 1965. Since then, we have tried lots of different ways to explore the Red Planet. Learn the history of our Mars exploration and find out some of what we have learned.
  • Sound: The Science of Sound
    E13
    Sound: The Science of SoundSound is energy, a special kind of energy. It moves in waves and fills our ears. But how does sound move and fill our ears. Find out more about the science of sound.
  • Sound: Without Sound
    E14
    Sound: Without SoundSound surrounds our everyday life, but what if you can't hear? What is sound to someone who is deaf? Follow a deaf student and find out what her day is like and the role sound plays in it.
  • Bees: What's the Buzz About Bees?
    E15
    Bees: What's the Buzz About Bees?Bees play a key role in food production, and some bees give us honey in the process. Learn more about bees and their very busy lives.
  • Bees: Honey and Smoke
    E16
    Bees: Honey and SmokeWhat is it like to raise bees for honey? Meet an Idaho beekeeper and learn more about her job and why smoke is important in her work.
  • Inventions: Need a Light? Try Science.
    E17
    Inventions: Need a Light? Try Science.Inventors use the Scientific Method to answer questions, solve problems, and invent things. Learn what the Scientific Method is and how Edison used it to invent the light bulb.
  • Inventions: Goldfish® or M&Ms ®?
    E18
    Inventions: Goldfish® or M&Ms ®?Food Scientists create new taste combinations using the scientific method. Meet a food scientist trying to find the perfect cupcake topping.

 

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