Earth is a planet because it is an object in space big enough to have its own gravity, is spherical, and moves around a sun. Earth moves in an almost circular orbit around the Sun. It also rotates around an axis, an imaginary line that goes through its center. Earth's rotation around its axis causes day and night, with one day being one full rotation of Earth. Earth's axis is tilted with respect to the Sun, and the combination of the tilt of Earth and its orbit around the Sun causes the seasons. When the northern part of Earth is tilted toward the Sun and the southern part is tilted away from…mehr
Earth is a planet because it is an object in space big enough to have its own gravity, is spherical, and moves around a sun. Earth moves in an almost circular orbit around the Sun. It also rotates around an axis, an imaginary line that goes through its center. Earth's rotation around its axis causes day and night, with one day being one full rotation of Earth. Earth's axis is tilted with respect to the Sun, and the combination of the tilt of Earth and its orbit around the Sun causes the seasons. When the northern part of Earth is tilted toward the Sun and the southern part is tilted away from the Sun, the northern part will be warmer and the southern part cooler. The reverse is true when Earth is in a different location in its orbit and the southern part is tilted toward the Sun and the northern part away from the Sun. Satellites are machines that orbit Earth and gather information and photographs that are sent to scientists on Earth. Pronunciation guide. 24 pages filled with engaging, colorful illustrations. Reading Level 1-3, Interest Level 2-5, Word count 377, Lexile measure 660L.
Dr. Rebecca Woodbury received her Ph.D. in biophysical chemistry from the University of New Mexico in 1992. She was awarded a National Science Foundation postdoctoral fellowship in the Department of Molecular Biology at the University of New Mexico, followed by a Burroughs Wellcome Fund Postdoctoral Fellowship in the Department of Molecular Biology at the University of California, Berkeley.While home schooling her three children, Dr. Woodbury was unable to find a curriculum that provided a solid foundation in science. She left academia, and using her scientific background coupled with her love of learning, she developed a series of science books for kids.The Real Science-4-Kids curriculum provides students with a solid foundation in science and gives them the tools to evaluate scientific data on their own. "We should not rely on the 'experts' but instead learn how to critically evaluate every scientific claim," states Dr. Woodbury."In these uncertain times with so many social, scientific, and economic problems, it is not enough to teach our kids what to learn. We must also teach them how to learn, and we must encourage our kids to learn from others. Part of learning from others is to know how to engage in productive debate."The Real Science-4-Kids curriculum, with its engaging, kid-friendly Student Textbooks; Laboratory Notebooks full of real science experiments; and easy to use Teacher's Manuals, provides kids with a solid science education in chemistry, biology, physics, geology, and astronomy. This curriculum is used in all 50 states in the US and many other countries. Dr. Woodbury and her publishing team continue to develop and test new products, including leveled readers and mini books, at the Real Science-4-Kids Albuquerque headquarters.
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