2 9 what is energy (physical science)
2.8 Air is everywhere (physical science)
... water evaporates into the air You are about to read more about one state of matter Air is a gas, and it is all around us What is air? Air is a gas It is all around us Air is made up of tiny particles ... 13 Rising Air Hot air is lighter than cool air Air that is warm rises up People can use hang gliders to soar through the air Birds, such as eagles and sea gulls, soar on rising waves of air The ... snowflakes when the air is below freezing Snow has a lot of air trapped in it This is why snow looks white Rain and snow are kinds of precipitation 16 17 Air Resistance Air resistance is a force that...
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2.9 Ships and boats (physical science)
... have, you probably saw ships and boats in action Ships and boats come in all shapes and sizes There are small canoes, medium-sized tugboats, and huge oil tankers All boats, no matter what size, ... ships and boats? How does a ballast work? People use different kinds of energy to move ships and boats through water Write to tell about three types of fuel or energy used to move ships and boats ... include motion, wind, sound, and electricity In this book, you will read about boats and ships What boats and ships have to with energy? People use different kinds of boats People also use different...
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2.9 Energy (physical science)
... is energy? You use energy all the time Things that can work and cause change have energy You use energy when you walk You use energy when you breathe You use energy while you sleep What has energy? ... change? Then it has energy Energy from the Sun Earth gets energy from the Sun The Sun gives Earth heat Heat and light from the Sun are solar energy People can use solar energy Solar energy heats this ... get energy from the Sun Plants need food to live and grow How People Get Energy People get energy from food Food gives people energy to grow Food gives people energy to move Food gives you energy...
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What is weather earth science
... you live? What is the weather like today? Weather changes all the time Is it wet or dry? Are there clouds? Can you see the Sun? Is there wind? How hot or cold is it? It is cold here It is hot here ... Temperature is how hot or cold something is Temperature changes We measure temperature using numbers The temperature is a higher number when it is hot The temperature is a lower number when it is cold Weather ... from wet weather But many living things look for shelter from wet weather Sleet Sleet is a kind of wet weather Rain can turn to sleet when it is cold Sleet is rain that freezes Rain Rain is a kind...
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Introduction to energy: what is energy?
... to make things move Cars run on the energy stored in gasoline Many toys run on the energy stored in batteries Sail boats are pushed by the energy in the wind After a long day, you ever feel too ... the earth to make electricity Energy Doesn’t Disappear There is the same amount of energy today as there was when the world began When we use energy, we don’t use it up, we change it into other ... our toys and microwaves Imagine what your life would be like without electricity We make electricity by burning coal, oil, gas, and even trash We make it from the energy that holds atoms together...
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3 13 energy (physical science)
... details support it? What is energy? Stored Energy Energy into another kind of energy to work or cause a Energy is the ability to work or cause change Stored energy is potential energy It can change ... potential energy The stored energy in food, fuels, and batteries is chemical energy Batteries and gasoline both contain stored energy Energy of Motion Potential energy can change to kinetic energy ... of Energy energy changes to electrical energy when you turn on Energy changes from one form to another all the time Your body stores potential energy in the form the toothbrush The electrical energy...
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3 13 so much energy (physical science)
... more energy it carries Some other forms of energy, such as sound, also move as waves You cannot see these waves without special equipment crest trough Sound waves You can measure how much energy ... wasted energy is heat energy To turn on the radio and use its sound energy, you need to use electrical energy And the chemical energy created by the gas in a car gives it the mechanical energy ... kinetic energy to electrical energy Changing Forms of Energy Energy can change from one form to another This morning you ate some cereal The chemical energy from the cereal was stored as potential energy...
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2.11 How sound travels (physical science)
... Bullfrogs can make low-pitched sounds Sound moves through solids, liquids, and gases Sound travels fast through gases Sound travels even faster through liquids Sound travels fastest through solids ... read on to find out more about how sound travels bullfrog Sound Waves If you touch a vibrating tuning fork to water, the sound waves will make the water move Every sound you hear is caused by very ... are called sound waves When the sound waves reach our ears we hear the sound When you tap a tuning fork, it will vibrate and make sound waves The sound waves will travel to your ear sound waves...
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2.10 Forces and motion (physical science)
... Vocabulary attract What did you learn? Forces and Motion How can you make objects move? force What is gravity? by Arlene Block friction You ... magnet attract and then repel another magnet? Tell, in order, what you would gravity motion repel simple machine work Photographs: Every effort has been made to secure permission and provide appropriate ... 60025 10 V010 13 12 11 10 09 08 07 How objects move? Motion is the act of moving Objects can move in different ways This swing moves back and forth A merry-go-round moves in a circle Force How...
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Tài liệu Tiếng Anh lớp 1, 2 - Lesson twenty (Bài 20) WHAT...? - WHAT IS YOUR JOB? - WHAT TIME? - WHAT cOLOUR? ppt
... lần) - What is it? - It is a - What are they? - They are - What is your job? - I am a - What is her job? - She is a - What is his job? - He is a - What time is it? - It is ... - What time is it? - It is - What time is it? - It is - What time is it? - It is - What time is it? - It is - What colour is it? - It is - What colour are they? - They ... sang tiếng Việt: What is it? - It is a hand What is it? - It is a thumb What is it? - It is a dog What are they? - They are eyes What are they? - They are legs What are they? - They are toes What...
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Energy Audits 101: WHAT IS AN ENERGY AUDIT? pot
... pollution and carbon footprint Inspection Services Inc WHAT IS THE PURPOSE OF AN ENERGY AUDIT? Help evaluate: Building shell and envelope issues Building mechanical and electrical ... WHAT IS AN ENERGY AUDIT? An energy audit is a package of services that delivers the following benefits to customers: 8/4/2010 Educates and creates awareness ... per hour (Why is this important?) Therm Cubic Foot How water / sewer is metered EER or SEER Energy Efficiency Ratio -‐ by watts (Why is this important?) 8/4/2010 Inspection...
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What is known about the effectiveness of economic instruments to reduce consumption of foods high in saturated fats and other energy-dense foods for preventing and treating obesity? docx
... Anise A (2006) What is known about the effectiveness of economic instruments to reduce consumption of foods high in saturated fats and other energy-dense foods for preventing and treating obesity? ... generated from What is known about the effectiveness of economic instruments to reduce consumption of foods high in saturated fats and other energy-dense foods for preventing and treating obesity? ... kindergarten and the first grade 10 What is known about the effectiveness of economic instruments to reduce consumption of foods high in saturated fats and other energy-dense foods for preventing and treating...
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WHAT IS BETA GLUCAN? A Concise Guide to the Benefits and Uses of the Most Powerful Natural Im- mune Enhancer Known to Science ppt
... adjuvant alternative, to Freund’s complete adjuvant and may be of value in immunization against visceral leishmaniasis” (Leishmania infantum was the bacteria they used in this experiment) At the Tokyo ... given beta glucan Their average age was 52, and their cancer was in the advanced stage It was concluded, Beta glucan administration seems to stimulate proliferation and activation of peripheral ... 1999 Take advantage of this, and make it a part of your daily supplement program Chapter 1: What Is Beta Glucan? Beta glucan is a polysaccharide (i.e a chain of glucose...
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