LEVEL 7. for EARTH SCIENCE

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1 LEVEL 7 for EARTH SCIENCE

2 Table of Contents Historic Firsts... 1 Gems from the Earth... 2 Nature s Soil Builder... 4 Nature s Movers and Shapers... 6 Volcanic Eruptions... 8 Telling Earth s History The Hydrologic Cycle Treating Drinking Water Pushing the Weather Clouds: High Signs of Weather Doppler Radar Hurricanes and Tornadoes Motion of the Earth and Moon Astronomical Objects Earth and Mars International Space Station Earth Science Vocabulary VersaTiles for Earth Science, Level 7 hand2mind ISBN Greenview Court Vernon Hills, Illinois hand2mind.com 2007 by ETA hand2mind All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. Printed in the United States of America

3 Astronomical Objects Study the illustrations and the table. Common Astronomical Objects Defined Object Name Definition Did You Know? black hole comet meteoroid moon nebula planet small, rocky object that orbits the Sun and ranges in size from about 30 feet to 600 feet across extremely dense object whose gravitational pull is so strong that not even light can escape from it small chunk of ice, dust, and rocky material that forms a glowing tail of gas and dust when it passes near the Sun in its orbit rocky object that orbits the Sun and is much smaller than an body of matter that orbits a planet, reflects light from the Sun, and has a similar composition to planets fuzzy cloud of gas and/or dust that is visible in space because it glows, or scatters light from stars within it, or blocks light from objects behind it any large body (bigger than an ) that revolves around a star. Most s are concentrated in the belt, located between the orbits of Jupiter and Mars. Black holes are generally thought to result from the collapse of certain very massive stars at the ends of their lives. A comet may measure only a few miles across, but its tail may be millions of miles long, making it visible to the naked eye. A meteoroid that enters Earth s atmosphere and burns up is called a meteor. Pieces that remain intact and strike the earth are called meteorites. Moons are also called satellites. Saturn has 29 moons, the most of any planet. Some planets do not have any moons. Stars are born inside collapsing nebulae. Mercury, Venus, Earth, and Mars are called terrestrial planets because they contain mainly rocks and metal and are fairly dense. Jupiter, Saturn, Uranus, and Neptune are called gaseous planets because they are mainly hydrogen and helium. star giant ball of burning gas held together by gravity Stars vary in size, color, and temperature. Blue stars are hottest, red stars are coolest, and yellowwhite stars fall in between. The Sun is a yellow-white star. It is the largest object in our solar system and contains over 99 percent of the system s total mass. 26 Objective: Identify and compare common astronomical objects.

4 Use the clues to solve the crossword puzzle. Across 4 piece of space rock that strikes Earth 7 rocky object up to 600 feet across 9 most s are found between this planet and Jupiter 0 planet with the greatest number of moons = characteristic that determines star color Down 1 object made mainly of ice 2 fuzzy cloud of gas and/or dust 3 classification used to identify rocky, dense planets 5 content of stars 6 black holes are powerful enough to trap even this form of energy 8 object also known as a satellite star located at the center of our solar system Astronomy is the study of objects across the universe, including their movement, position, size, composition, and function. nebula temperature Saturn meteorite Mars gas moon light comet Sun terrestrial Digging Deeper Research Sedna. What is it? Where is it? How big is it? 27

5 Getting Started With Four Easy Steps Make VersaTiles Simple to Use! Set up your VersaTiles Answer Case by placing the numbered tiles in order from 1 12 in the top 2 rows. Now you are ready to begin your activity. 1 ANSWER QUESTIONS 2 CLOSE AND FLIP 3 MATCH 4 LEARN Complete each question by placing the number tile on the letter in the Answer Case that corresponds to the correct answer. Close the Answer Case and flip it over. Open the case and look at the pattern on the tiles. Check the tile pattern against the pattern in the Activity Book. If it matches, all answers are correct. If not, remove tiles that do not match and flip the case over again. Rethink the incorrect answer and flip the Answer Case over again. Once the pattern in the case and the book match, the activity has been successfully completed! hand2mind.com Connect with us.

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