By Jack Goldstein
Were you aware there's a species of dinosaur named after Hogwarts? which have been the biggest and smallest dinosaurs? what's the distinction among a brontosaurus and an apatosaurus? this glorious ebook solutions all of those questions and extra, with over 100 proof approximately dinosaurs and different prehistoric creatures.
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Extra resources for 101 Amazing Facts about Dinosaurs
Whether radiant energy is absorbed, reflected, and/or passes through a material depends on whether the material is transparent, translucent, or opaque. If you can see through a material, it is transparent to visible light, which means it allows visible light to easily pass through—for example, glass. A material that allows radiant energy to pass through but scatters it in different directions is translucent to that form of radiant energy. For example, frosted glass is translucent to visible light.
Materials with dark, dull, and rough surfaces absorb more energy, and materials with light, shiny, and smooth surfaces reflect more energy. Solar energy passing through a window of clear glass is mostly visible light. Visible light that is absorbed by a material causes the particles in the material to move faster, thus increasing its temperature. Solar engineers use the knowledge of how materials react to solar radiation in designing structures that can capture and use solar energy for heating.
Which of the toys, A, B, or C, absorbs the most sound? qxp 1/31/07 12:56 PM Page 47 Easy Listening 47 Activity: QUIET PLEASE Purpose To determine how to make a room quieter. Materials ticking timer shoe box 2 pencils cotton balls (enough to fill the shoe box) Procedure 1. Make sure that any background sounds are at a minimum. ) 2. At the end of a large room or hallway, turn the timer on and place it in the shoe box. Place the lid on the box and set the box on a table or the floor. 3. Walk in a straight line away from the box until you no longer hear the ticking.