doc© Macmillan/McGraw
download 
Report Transcription
© Macmillan/McGraw
adaptation © Macmillan/McGraw-Hill Photograph by Nigel J. Dennis/Photo Researchers Inc. Published by Macmillan/McGraw-Hill, of McGraw-Hill Education, a division of The McGraw-Hill Companies, Inc., Two Penn Plaza, New York, New York 10121. Copyright © by Macmillan/McGraw-Hill. All rights reserved. No part of this publication may be reproduced or distributed in any form or by any means, or stored in a database or retrieval system, without the prior written consent of The McGraw-Hill Companies, Inc., including, but not limited to, network storage or transmission, or broadcast for distance learning. Printed in the United States of America 1 2 3 4 5 6 7 8 9 10 109 11 10 09 08 07 06 ISBN-13: 978-0-02-284227-7 ISBN-10: 0-02-284227-6 Grade 1 31 Vocabulary Routine Define:A body part or behavior that helps an animal survive. Example:A giraffe’s long neck is an adaptation. Ask:Why is a giraffe’s long neck an adaptation? nonliving © Macmillan/McGraw-Hill Grade 1 2 Photograph by C. Borland/PhotoLink/Getty Images Photograph by Comstock/PictureQuest © Macmillan/McGraw-Hill Grade 1 1 living Vocabulary Routine Define: Something that does not grow and change, or need food, air, or water to survive. Example: A rock is a nonliving thing. Ask: What are some other nonliving things? Ask: What are some other living things? Example: This girl is a living thing. Define: Something that grows, changes, and needs food, air, and water to survive. Vocabulary Routine © Macmillan/McGraw-Hill leaves Grade 1 4 Photograph by Evan Sklar/Botanica/Jupiter Images Photograph by Brand X Pictures/PunchStock © Macmillan/McGraw-Hill Grade 1 3 nutrient Vocabulary Routine Define: Plant parts that use sunlight and air to make food. Example: Leaves come in different shapes and sizes. Ask: What would happen if a plant lost all of its leaves? Ask: Where do you get nutrients from? Example: Plant roots can get nutrients from soil. Define: Something that living things need to grow. Vocabulary Routine stem stem Grade 1 © Macmillan/McGraw-Hill 5 Photograph by John Kaprielian/Photo Researchers, Inc. Photograph by John Kaprielian/Photo Researchers, Inc. © Macmillan/McGraw-Hill Grade 1 root root 6 Vocabulary Routine Define: Plant part that keeps the plant in the ground. Example: Roots hold a plant in the ground. Ask: What would happen if a plant did not have roots? Ask: What would happen if a plant did not have a stem? Example: The stem holds up the flower. Define: The part of a plant that holds up the plant. Vocabulary Routine trunk © Macmillan/McGraw-Hill Grade 1 7 Photograph by Royalty-Free/CORBIS Photograph by Royalty-Free/CORBIS © Macmillan/McGraw-Hill Grade 1 flower 8 Vocabulary Routine Define: The thick stem of a tree. Example: A trunk helps protect a tree from weather and animals. Ask: How are the stem of a flower and the trunk of a tree the same? Ask: Why is a flower important to a plant? Example: Flowers come in many shapes and colors. Define: A part of a plant that makes seeds. Vocabulary Routine seed seed Grade 1 © Macmillan/McGraw-Hill 9 Photograph by Judd Pilossof/Foodpix/Jupiter images Photograph by Gilbert S. Grant/Photo Researchers Inc © Macmillan/McGraw-Hill Grade 1 fruit 10 Vocabulary Routine Define: A part of a plant that can grow into a new plant. Example: A seed inside a peach can grow a peach tree. Ask: What happens when you plant and care for a seed? Ask: What kinds of fruit do you like to eat? Example: The peach fruit has a seed inside. Define: The plant part that holds the seeds. Vocabulary Routine life cycle Grade 1 © Macmillan/McGraw-Hill Photograph by (b) Siede Preis/Getty Images; (l) Holt Studios International LTD/Alamy; (r) S.J. Krasemann/Peter Arnold, Inc. 11 Photograph by (t) S.J. Krasemann/Peter Arnold, Inc.; (b) Siede Preis/Getty Images © Macmillan/McGraw-Hill Grade 1 seedling 12 Vocabulary Routine Define: How a living thing grows, lives, and dies. Example: The life cycle of a bean plant starts with a seed. Ask: What happens in the life cycle of a bean plant? Ask: How can you tell when a seed has grown into a seedling? Example: A young bean plant is a seedling. Define: A young plant. Vocabulary Routine desert Grade 1 © Macmillan/McGraw-Hill 13 Photograph by Mark Gibson/Index Stock Photograph by Tom Bean/CORBIS © Macmillan/McGraw-Hill rain forest Grade 1 14 Vocabulary Routine Define: A hot, wet place. Example: A rain forest has many green plants. Ask: What helps some plants survive in the rain forest? Ask: What helps cactus plants live in the desert? Example: Cactus plants can live in the desert. Define: A hot and dry place. Vocabulary Routine arctic © Macmillan/McGraw-Hill Grade 1 15 Photograph by 2006 Jim D. Barr/AlaskaStock.com Photograph by Blickwinkel/Alamy © Macmillan/McGraw-Hill Grade 1 mammal 16 Vocabulary Routine Define: An icy and cold place near the North Pole. Example: When arctic snow melts, small flowers grow. Ask: What would you wear if you lived in the arctic? Ask: What are some mammals you know? Example: Most mammals give birth to live young. Define: An animal with hair or fur. Vocabulary Routine bird © Macmillan/McGraw-Hill Grade 1 17 Photograph by Flip De Nooyer/Foto Natura/Minden Pictures Photograph by IT Stock/Punchstock © Macmillan/McGraw-Hill Grade 1 reptile 18 Vocabulary Routine Define: An animal that has dry skin covered with scales. Example: A snake is a reptile. Ask: What is another kind of reptile? Ask: What is another kind of bird? Example: A duck is a bird. Define: An animal that has two legs, two wings, and feathers. Vocabulary Routine amphibian Grade 1 © Macmillan/McGraw-Hill Photograph by Michael & Patricia Fogden/Minden Pictures 19 Photograph by Imagestate/Alamy © Macmillan/McGraw-Hill fish Grade 1 20 Vocabulary Routine Define: An animal that lives in water and has gills and fins. Example: Fish use gills to breathe in water. Ask: Where can fish live? Ask: What is another kind of amphibian? Example: A frog is an amphibian. Define: An animal that lives on land and in water. Vocabulary Routine insect © Macmillan/McGraw-Hill Grade 1 21 Photograph by (b) Ted Clutter/Photo Researchers, Inc.; (t) Natalie Ray for Macmillan/McGraw-Hill Photograph by Daniel J Cox/Getty Images © Macmillan/McGraw-Hill Grade 1 shelter 22 Vocabulary Routine Define: A place where animals can live and be safe. Example: These raccoons find shelter in a log. Ask: Where else could an animal find shelter? Ask: What is another kind of insect? Example: An ant is an insect. Define: An animal with three body parts and six legs. Vocabulary Routine lungs Grade 1 © Macmillan/McGraw-Hill 24 Photograph by Pete Oxford/Minden Pictures Photograph by Photodisc/Getty Images © Macmillan/McGraw-Hill Grade 1 23 gills Vocabulary Routine Define: The part of a fish that takes in oxygen from water. Example: A fish uses its gills to breathe in water. Ask: Why are gills important to a fish? Ask: What other animals use lungs to breathe? Example: Birds use lungs to breathe. Define: Body parts used to breathe air. Vocabulary Routine carnivore © Macmillan/McGraw-Hill Grade 1 26 Photograph by Alan & Sandy Carey/zefa/CORBIS Photograph by OnRequest Images, Inc./Alamy © Macmillan/McGraw-Hill Grade 1 25 herbivore Vocabulary Routine Define: An animal that eats other animals. Example: A tiger is a carnivore. Ask: What is another animal that is a carnivore? Ask: What is another animal that is a herbivore? Example: A rabbit is a herbivore. Define: An animal that eats plants. Vocabulary Routine © Macmillan/McGraw-Hill tadpole Grade 1 28 Photograph by David Boag/Oxford Scientific/Jupiter Images; (bkgd) Jim Brandenburg/Minden Pictures Photograph by Paul Bricknell/Dorling Kindersley © Macmillan/McGraw-Hill Grade 1 27 hatch Vocabulary Routine Define: A baby animal breaking out of an egg. Example: Birds hatch from eggs. Ask: What is another animal that can hatch from an egg? Ask: How would you describe a tadpole? Example: A tadpole grows into an adult frog. Define: A young frog. Vocabulary Routine grassland © Macmillan/McGraw-Hill Grade 1 30 Photograph by Jeremy Woodhouse/Masterfile Photograph by Nicole Duplaix/Getty Images © Macmillan/McGraw-Hill Grade 1 29 habitat Vocabulary Routine Define: A place where plants and animals live. Example: A forest is a habitat for many plants and animals. Ask: What is another kind of habitat? Ask: What helps prairie dogs live on a grassland? Example: Prairie dogs live on a grassland. Define: A large open place with a lot of grass. Vocabulary Routine adaptation © Macmillan/McGraw-Hill Grade 1 31 Photograph by Nigel J. Dennis/Photo Researchers Inc. Photograph by Jack Milchanowski/Visuals Unlimited © Macmillan/McGraw-Hill Grade 1 forest 32 Vocabulary Routine Define: A place where there are many tall trees. Example: Many plants and animals live in the forest. Ask: What are some kinds of plants and animals that live in the forest? Ask: Why is a giraffe’s long neck an adaptation? Example: A giraffe’s long neck is an adaptation. Define: A body part or behavior that helps an animal survive. Vocabulary Routine lake Grade 1 © Macmillan/McGraw-Hill 33 Photograph by (cr) Arthur Morris/CORBIS; (bl) John Warden/Getty Images; (b) David R. Frazier Photolibrary, Inc./Alamy. Photograph by David Fleetham/Getty Images © Macmillan/McGraw-Hill Grade 1 ocean 34 Vocabulary Routine Define: Fresh water that has land all around it. Example: A lake can be a home for many plants and animals. Ask: Which animals can live in a lake? Ask: What other animals live in the ocean? Example: Whales live in the ocean. Define: Salty water that is very large and deep. Vocabulary Routine Sun gives plant energy. Insect eats plant. Frog eats insect. Owl eats frog. food chain Grade 1 © Macmillan/McGraw-Hill 35 Photograph by Macmillan/McGraw-Hill © Macmillan/McGraw-Hill Grade 1 extinct 36 Vocabulary Routine Define: The order in which living things get food in a habitat. Example: All animals are part of a food chain. Ask: What is happening in this food chain? Ask: What other animals are extinct? Example: The woolly mammoth is an extinct animal. Define: When all of one kind of plant or animal dies. Vocabulary Routine river © Macmillan/McGraw-Hill Grade 1 38 Photograph by Amy and Chuck Wiley/Wales/Index Stock Photograph by NASA/Stock Image/agefotostock © Macmillan/McGraw-Hill Grade 1 37 continent Vocabulary Routine Define: A large piece of land on Earth. Example: There are seven continents on Earth. Ask: What do you know about the continents on Earth? Ask: How is a river different from an ocean? Example: A river may flow into an ocean. Define: Fresh water that moves. Vocabulary Routine mountain Grade 1 © Macmillan/McGraw-Hill 39 Photograph by Amy and Chuck Wiley/Wales/Index Stock Photograph by Gary Yeowell/Getty Images © Macmillan/McGraw-Hill Grade 1 valley 40 Vocabulary Routine Define: Land that is very high. Example: A mountain is the highest type of land. Ask: How can you tell if you are on a mountain? Ask: Where can you find a valley? Example: The valley is flat. Define: Low land between mountains. Vocabulary Routine mineral Grade 1 © Macmillan/McGraw-Hill 42 Photograph by /The McGraw-Hill Companies/ Ken Cavanagh Photographer Photograph by Macduff Everton/CORBIS © Macmillan/McGraw-Hill Grade 1 41 plain Vocabulary Routine Define: Flat land that spreads out a long way. Example: A plain is wide and flat. Ask: How is a plain different from a valley? Ask: Where can you find minerals? Example: All rocks are made of minerals. Define: A nonliving thing from the earth. Vocabulary Routine weathering © Macmillan/McGraw-Hill Grade 1 44 Photograph by Larry Stepanowicz/Visuals Unlimited Photograph by Natalie Ray for Macmillan/McGraw-Hill © Macmillan/McGraw-Hill Grade 1 43 soil Vocabulary Routine Define: The top layer of Earth. Example: Soil is a mixture of tiny bits of rock, air, water, dead plants, and dead animals. Ask: What can you grow in soil? Ask: How else can weathering change rocks? Example: Weathering can make rocks crack. Define: When water changes the shape and size of rocks. Vocabulary Routine natural resource © Macmillan/McGraw-Hill Grade 1 46 Photograph by Rainer Hackenberg/zefa/CORBIS Photograph by Daryl Benson/Masterfile © Macmillan/McGraw-Hill Grade 1 45 erosion Vocabulary Routine Define: When rock and soil are moved by wind or water to a new place. Example: Erosion slowly changes the shape of the land. Ask: How do you think erosion has changed the shape of the land in this picture? Ask: What is another natural resource? Example: Rocks are a natural resource. Define: Something that comes from Earth that people use. Vocabulary Routine © Macmillan/McGraw-Hill conserve Grade 1 48 Photograph by Natalie Ray for Macmillan/McGraw-Hill Photograph by Deco/Alamy © Macmillan/McGraw-Hill Grade 1 47 pollution Vocabulary Routine Define: To save, keep, or protect. Example: You can conserve resources by not wasting them. Ask: What are some ways you can conserve resources? Ask: What are some other kinds of pollution? Example: Water pollution can harm animals. Define: Harmful things in the air, land, or water. Vocabulary Routine reuse © Macmillan/McGraw-Hill Grade 1 49 Photograph by Natalie Ray for Macmillan/McGraw-Hill Photograph by Big Cheese Photo/Punchstock © Macmillan/McGraw-Hill Grade 1 reduce 50 Vocabulary Routine Define: To use less of something. Example: You can reduce how much water you use by turning the water off when brushing your teeth. Ask: How can you reduce using other things? Ask: What other things can you reuse? Example: You can reuse cans and bottles. Define: To use something again. Vocabulary Routine © Macmillan/McGraw-Hill weather Grade 1 52 Photograph by Robert Brenner/Photo Edit Photograph by Mark E. Gibson/CORBIS © Macmillan/McGraw-Hill Grade 1 51 recycle Vocabulary Routine Define: To make a new thing from an old thing. Example: You can recycle paper, plastic, and glass. Ask: Why should you recycle? Ask: What are some other kinds of weather? Example: The weather is rainy today. Define: What the sky and air are like each day. Vocabulary Routine thermometer © Macmillan/McGraw-Hill Grade 1 54 Photograph by The McGraw-Hill Companies/Jacques Cornell Photographer Photograph by Brand X Pictures/Punchstock © Macmillan/McGraw-Hill Grade 1 53 temperature Vocabulary Routine Define: A tool that measures temperature. Example: The thermometer shows a temperature of 65 degrees Fahrenheit. Ask: Why would you use a thermometer? Ask: What is the temperature today? Example: In winter, the temperature can be very cold. Define: How hot or cold something is. Vocabulary Routine wind vane Grade 1 © Macmillan/McGraw-Hill 56 Photograph by Dynamic Graphics Group/Creatas/Alamy; (bkgd) Photolink/Getty Images Photograph by L.S. Stepanowicz/Bruce Coleman, Inc. © Macmillan/McGraw-Hill Grade 1 55 rain gauge Vocabulary Routine Define: A tool that measures how much rain falls. Example: A rain gauge is a weather tool. Ask: Why would you use a rain gauge? Ask: Why would you use a wind vane? Example: A wind vane is a weather tool. Define: A tool that shows the direction of the wind. Vocabulary Routine cloud Grade 1 © Macmillan/McGraw-Hill 58 Photograph by Corbis/Punchstock © Macmillan/McGraw-Hill Grade 1 57 water vapor water vapor rain Sun cloud Vocabulary Routine Define: Water that goes up into the air as a gas and is too small to see. Example: You can not see water vapor. Ask: What happens to water vapor? Ask: What makes a cloud? Example: Rain or snow can fall from a cloud. Define: Tiny drops of water and bits of ice that collect in the sky. Vocabulary Routine season Grade 1 © Macmillan/McGraw-Hill 59 Photograph by Stock Connection/Alamy Photograph by Richard Cummins/CORBIS © Macmillan/McGraw-Hill Grade 1 spring 60 Vocabulary Routine Define: A time of year. Example: Fall, winter, spring, and summer are the four seasons. Ask: How is each season different? Ask: What else happens in spring? Example: Many baby animals are born in spring. Define: The season after winter. Vocabulary Routine fall © Macmillan/McGraw-Hill Grade 1 62 Photograph by Ariel Skelley/Getty Images Photograph by Photodisc/Punchstock © Macmillan/McGraw-Hill Grade 1 61 summer Vocabulary Routine Define: The season after spring. Example: Lemonade can cool you off in the hot summer. Ask: What do you like to do in summer? Ask: What do you like to do in fall? Example: Some leaves change colors in fall. Define: The season after summer. Vocabulary Routine winter Grade 1 © Macmillan/McGraw-Hill 63 Photograph by Brand X Pictures/Punchstock Photograph by Rob Matheson/CORBIS © Macmillan/McGraw-Hill Grade 1 star 64 Vocabulary Routine Define: An object in the sky that makes its own light. Example: We can see many stars in the night sky. Ask: What star can you see in the day sky? Ask: What do you like to do in winter? Example: It can snow in winter. Define: The season after fall. Vocabulary Routine Sun © Macmillan/McGraw-Hill Grade 1 65 Photograph by G. Schuster/zefa/CORBIS © Macmillan/McGraw-Hill Grade 1 rotate day Sun You are here. night 66 Vocabulary Routine Define: The star closest to Earth. Example: The Sun gives light and heat to Earth. Ask: Why do you think the Sun is important to Earth? Ask: What other things rotate? Example: Earth turns, or rotates, every 24 hours. Define: To spin. Vocabulary Routine phases Grade 1 © Macmillan/McGraw-Hill 68 Photograph by Eckhard Slawik/Photo Researchers, Inc. Photograph by Eckhard Slawik/Photo Researchers, Inc © Macmillan/McGraw-Hill Grade 1 67 Moon Vocabulary Routine Define: The different Moon shapes we see each month. Example: A crescent Moon is one of the Moon’s phases. Ask: What do some other phases of the Moon look like? Ask: When can you see the Moon? Example: The Moon does not make its own light. Define: A ball of rock that moves around Earth. Vocabulary Routine property © Macmillan/McGraw-Hill Grade 1 70 Photograph by Ken Cavanagh for Macmillan/McGraw-Hill © Macmillan/McGraw-Hill Grade 1 69 planet Saturn Vocabulary Routine Define: How something looks, feels, smells, tastes, or sounds. Example: Color is a property of the puppets. Ask: What is another property of the puppets? Ask: What is the name of another planet? Example: Saturn is a planet. Define: A very large object that moves around the Sun. Vocabulary Routine mass Grade 1 © Macmillan/McGraw-Hill 72 Photograph by Natalie Ray for Macmillan/McGraw-Hill Photograph by Dorling Kindersley © Macmillan/McGraw-Hill Grade 1 71 matter Vocabulary Routine Define: The amount of matter in an object. Example: A metal bird has more mass than a sponge bird. Ask: How do you know a metal bird has more mass than a sponge bird? Ask: What else is made of matter? Example: A kite is made of matter. Define: What all things are made of. Vocabulary Routine balance Grade 1 © Macmillan/McGraw-Hill 73 Photograph by Natalie Ray for Macmillan/McGraw-Hill Photograph by Ken Karp for Macmillan/McGraw-Hill © Macmillan/McGraw-Hill Grade 1 solid 74 Vocabulary Routine Define: A tool used to measure mass. Example: The side of a balance with more mass will go down. Ask: What does a balance do? Ask: What is another solid? Example: A block is a solid. Define: A state of matter that has a shape of its own. Vocabulary Routine liquid Grade 1 © Macmillan/McGraw-Hill 75 Photograph by Sally Ullman/FoodPix/Jupiter Images Photograph by Jules Frazier/Getty Images © Macmillan/McGraw-Hill Grade 1 gas 76 Vocabulary Routine Define: A state of matter that does not have its own shape. Example: Gas gives balloons their shape. Ask: How can you fill a balloon with gas? Ask: What else is a liquid? Example: Milk is a liquid. Define: A state of matter that flows and takes the shape of its container. Vocabulary Routine burn Grade 1 © Macmillan/McGraw-Hill 77 Photograph by Ken Cavanagh for Macmillan/McGraw-Hill Photograph by Dennis Gray/Cole Group/Getty Images © Macmillan/McGraw-Hill Grade 1 mixture 78 Vocabulary Routine Define: Two or more different things put together. Example: A fruit salad is a mixture of different fruits. Ask: What is another kind of mixture you can make? Ask: What other things change when they burn? Example: When you burn paper, it changes to ash. Define: A way of changing matter using heat. Vocabulary Routine dissolve © Macmillan/McGraw-Hill Grade 1 79 Photograph by Natalie Ray for Macmillan/McGraw-Hill Photograph by Ken Karp for Macmillan/McGraw-Hill © Macmillan/McGraw-Hill Grade 1 freeze 80 Vocabulary Routine Define: To change from a liquid to a solid. Example: Water will freeze if it gets very cold. Ask: What other liquids can freeze? Ask: What else can dissolve into a liquid? Example: Drink mix will dissolve in water. Define: To completely mix into a liquid. Vocabulary Routine melt Grade 1 © Macmillan/McGraw-Hill 81 Photograph by Ken Karp for Macmillan/McGraw-Hill Photograph by Luis Forra/epa/CORBIS © Macmillan/McGraw-Hill evaporate Grade 1 82 Vocabulary Routine Define: To change from a liquid to a gas. Example: Heat from the Sun made the water in this pond evaporate. Ask: What else can evaporate? Ask: What other things can melt? Example: Ice cubes can melt and become water. Define: To change from a solid to a liquid. Vocabulary Routine motion © Macmillan/McGraw-Hill Grade 1 84 Photograph by Thinkstock/Punchstock © Macmillan/McGraw-Hill Grade 1 83 position Vocabulary Routine Define: The place where something is located. Example: You can find something if you know its position. Ask: What is your position in the classroom right now? Ask: How do you know when something is in motion? Example: The airplane is in motion. Define: A change in an object’s position. Vocabulary Routine force © Macmillan/McGraw-Hill Grade 1 86 Photograph by ThinkStock LLC/Index Stock Imagery Photograph by Digital Vision/Getty Images © Macmillan/McGraw-Hill Grade 1 85 speed Vocabulary Routine Define: A push or a pull that makes an object move. Example: It takes force, like a push, to move a ball. Ask: How much force do you need to use to move a ball? Ask: What other things can move at a fast speed? Example: A rocket ship can move at a fast speed. Define: How fast or slow something moves. Vocabulary Routine pull Grade 1 © Macmillan/McGraw-Hill 88 Photograph by Michael Scott for Macmillan/McGraw-Hill Photograph by Chris Clinton/Getty Images © Macmillan/McGraw-Hill Grade 1 87 push Vocabulary Routine Define: A force that moves something away from you. Example: The girl pushes the basketball when she throws it. Ask: What kinds of things can you push? Ask: Why would you need to pull something? Example: The boy pulls the bag of basketballs. Define: A force that moves something closer to you. Vocabulary Routine gravity © Macmillan/McGraw-Hill Grade 1 89 Photograph by Comstock Images/Punchstock Photograph by Rolf Schultes/dpa/CORBIS © Macmillan/McGraw-Hill Grade 1 friction 90 Vocabulary Routine Define: A force that slows things down. Example: If you drag a rubber stopper on the ground, friction makes you stop. Ask: What are some ways you can cause friction? Ask: What would happen if there was no gravity? Example: Gravity keeps us from staying up in the air. Define: A force that pulls things toward Earth. Vocabulary Routine simple machine Grade 1 © Macmillan/McGraw-Hill 91 Photograph by Michael Newman/Photo Edit Photograph by Glow Images/Punchstock © Macmillan/McGraw-Hill Grade 1 pulley pulley 92 Vocabulary Routine Define: A rope that moves over a wheel. Example: A pulley can help raise a flag to the top of a flagpole. Ask: How can a pulley help you do work? Ask: What is another kind of simple machine? Example: A rake is a simple machine. Define: A tool that can make it easier to move things. Vocabulary Routine ramp Grade 1 © Macmillan/McGraw-Hill 94 Photograph by Photofusion Picture Library/Alamy Photograph by Steve Prezant/CORBIS © Macmillan/McGraw-Hill Grade 1 93 lever Vocabulary Routine Define: A slanted surface that you can use to move things up or down. Example: A ramp makes it easier to go up to a higher place. Ask: When would you use a ramp? Ask: What is another kind of lever? Example: An oar is a lever. Define: A bar that balances on a point and moves like a seesaw. Vocabulary Routine poles Grade 1 © Macmillan/McGraw-Hill 96 Photograph by Jacques Cornell for Macmillan/McGraw-Hill Photograph by Natalie Ray for Macmillan/McGraw-Hill © Macmillan/McGraw-Hill Grade 1 95 magnet Vocabulary Routine Define: The places where a magnet’s pull is strongest. Example: A magnet has a North pole and a South pole. Ask: What happens to some metal objects when they are near a magnet’s poles? Ask: How could you use a magnet at home? Example: A magnet can attract metal paper clips. Define: Something that can pull, or attract, some objects with metal in them. Vocabulary Routine repel © Macmillan/McGraw-Hill Grade 1 97 Photograph by Natalie Ray for Macmillan/McGraw-Hill Photograph by Jack Star/PhotoLink/Getty Images © Macmillan/McGraw-Hill Grade 1 energy 98 Vocabulary Routine Define: To push away. Example: Alike poles on magnets will repel each other. Ask: Can you use your hands to show what happens when magnets repel each other? Ask: What other things need energy to work or change? Example: Gasoline gives cars the energy to move. Define: A force that makes things work or change. Vocabulary Routine vibrate Grade 1 © Macmillan/McGraw-Hill 100 Photograph by David Young-Wolff/Photo Edit Photograph by Lena Johansson/Getty Images © Macmillan/McGraw-Hill Grade 1 99 heat Vocabulary Routine Define: To move back and forth quickly. Example: Sound is made when something vibrates. Ask: What vibrates when you speak? Ask: What else can heat do? Example: Heat can make popcorn pop. Define: A form of energy that makes things warm. Vocabulary Routine light Grade 1 © Macmillan/McGraw-Hill 102 Photograph by David Young-Wolff/Photo Edit Photograph by Tom Carter/Photo Edit © Macmillan/McGraw-Hill Grade 1 101 pitch Vocabulary Routine Define: A form of energy that lets you see. Example: Light from a flashlight can help you see in the dark. Ask: What would happen if there were no light? Ask: What other sounds have a high pitch? Example: The sound of a siren has a high pitch. Define: The lowness or highness of a sound. Vocabulary Routine electricity © Macmillan/McGraw-Hill Grade 1 103 Vocabulary Routine Define: A form of energy that gives some things the power to work. Example: Many things in your home need electricity to work. Ask: What do you have in your home that needs electricity to work?
