Scooby-Doo! A Science of Light Mystery: The Angry Alien
MACHINE MYSTERY THE away Scooby Doo and the gang drove home from a day at the beach Man all that sand and sun sure make a person hungry Shaggy said Rungry Scooby Doo agreed There might be some sandwiches left in the cooler Velma said I wish it weren't so dark tonight Shaggy said I can't see what I'm doing Good thing I can smell a sandwich from a mile
And I can't see anything Daphne said Not even the road She slammed on the brakes Like who turned out the lights Shaggy asked The van's headlights must have burned out Fred said There's a town up the road Velma said Maybe we can find a repair shop And something to eat added Shaggy rubbing his stomach Someone ate all the sandwiches
waves Those woods look awfully creepy Daphne whispered It's a good thing we have these flashlights Fred said Or we'd be walking in total darkness Like how do we make light anyway Shaggy asked Light is a kind of energy Velma explained A unit of light is called a photon Photons are like tiny packets of energy Velma's right said Fred Photons travel together in light
Natural light comes from the sun Daphne added In fact most energy on Earth comes from sunlight Through photosynthesis plants use sunlight to make food Are you telling me that I have light to thank for French fries Shaggy asked Yep Velma said Light feeds plants Plants feed plant eating animals And plant eating animals feed the meat eaters Without the sun and its light there would be no life on Earth And what kind of light would that be Shaggy asked pointing at the sky It looks like a UFO shouted Fred FACT FILE Light travels about 1,000 feet 305 meters in one millionth of a second It takes about eight minutes for light to reach Earth from the sun
