4 12 how hot (physical science)

... Cake To get a closer look at the chemistry of baking, let’s examine how a carrot cake is made The main steps to baking any cake are mixing the ingredients and baking them together In most cake ... flour, sugar, salt, baking soda, baking powder, and spices Flour gives the cake structure Sugar helps to make it sweet Salt strengthens the cake batter Baking powder and baking soda m...

Ngày tải lên: 31/03/2017, 20:23

... science, the word work has a special meaning Work is done when force moves an object People have invented simple machines to the same amount of work with less force Riding a bicycle is work In this ... tire How Brakes Work Hand brakes rest on both sides of the wheel When you pull the controls, the brakes pinch the wheel This makes friction that slows down the bike wheel caliper br...

Ngày tải lên: 20/04/2017, 15:33

... the object you wish to move How much an object moves depends on how much force you use The greater the force placed on an object, the more the object will move Could you move a wall? Sometimes ... can move quickly going forward, but must slow down to move backward or sideways That object would move at a variable speed Its speed changes as it moves in different directions Force...

Ngày tải lên: 21/04/2017, 08:53

... build ships that float Floating and Sinking Have you ever wondered how huge ships are able to float? Even cargo ships loaded down with heavy goods float Buoyancy and density make floating possible ... Illinois 60025 10 V 010 13 12 11 10 09 08 07 06 05 16 Why some objects float in water? Where is water pressure strongest? Why ships have large, hollow hulls? In this book you have...

Ngày tải lên: 20/04/2017, 15:32

... object’s motion changes The harder you push on a cart, the faster it goes! Motion and Combined Forces You know that pushes, pulls, and friction can Lots of forces cause a bike to change its motion ... force What is the difference between constant speed Ann J Jacobs and variable by speed? friction gravity magnetism motion Forces and Motion Would it take more force to be...

Ngày tải lên: 21/04/2017, 08:34

... 60025 10 V 010 13 12 11 10 09 08 07 06 05 What did you learn? What are the three forms of matter? If two elements are listed in the same column of the periodic table, what you know about them? How ... 60025 10 V 010 13 12 11 10 09 08 07 06 05 16 What did you learn? What are the three forms of matter? If two elements are listed in the same column of the periodic table, what you...

Ngày tải lên: 21/04/2017, 08:53

... something vibrates, a sound is created Sounds can be loud or soft Loudness describes how loud or soft sound is Big vibrations make loud sounds Small vibrations make soft sounds Sounds can also be ... direction the sound is traveling 10 11 Sound travels through steel at 5,200 meters per second Sound travels through water at 1, 530 meters per second Sound travels through air at 3...

Ngày tải lên: 21/04/2017, 08:54

... 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...

Ngày tải lên: 21/04/2017, 15:32

Ngày tải lên: 24/04/2017, 10:42

... trapped on the Earth This makes it hotter The Temperature is Rising! There is scientific evidence that humans are at least partly responsible for this temperature change The atmosphere is the air ... Think about the book you just read What are the main ideas of the book? Also give some supporting details from the book to expand on your answer Danger: The World Is...

Ngày tải lên: 24/04/2017, 15:41

... answers to your questions? Write your questions and answers in a chart similar to the one below Questions Answers The Wheels on the Bike Go Round and Round by Laurence Howard One of the vocabulary words ... the back one Why? Making one turn of the pedals equaled one circle of the front wheel The larger the front wheel, the farther you could travel on one...

Ngày tải lên: 24/04/2017, 15:43

... thuộc Pháp (98%), Suriname (95%), Seychelles (88%) Ở lục địa Phi châu, rừng chiếm nhiều diện tích Congo, Gabon, Nam Phi 3.Vai trò rừng môi trường sống -rừng bảo vệ đất: Khi mưa xuống, nước mưa phần

Ngày tải lên: 22/01/2013, 10:16

... A.11,2 B.22 ,4 C.33,6 D 44 ,8 Câu4: Cho hỗn hợp X gồm Al2 (SO4)3 , KCl , MgSO4 , ZnSO4 có số mol mol vào dd NaOH d, lọc kết tủa, nung không khí đến khối lợng không đổi đợc gam chất rắn A .40 B. 142 C.223 ... B.22 ,4 C.33,6 D 44 ,8 Câu12: Cho hỗn hợp X gồm Al2 (SO4)3 , KCl , MgSO4 , ZnSO4 có số mol mol vào dd NaOH d, lọc kết tủa, nung không khí đến khối lợng không đổi đợc gam chất rắn...

Ngày tải lên: 24/06/2013, 01:26

... sentences To have Ss read the sentences provided provided from page 47 to page on page 47 to page 48 , Unit Four , English 48 , Unit Four , English 12 textbook 12 textbook Each sentence is read ... new lesson : D LANGUAGE FOCUS , from page 47 to page 49 , Unit Four , English 12 textbook UNIT FOUR : SCHOOL EDUCATION SYSTEM LANGUAGE FOCUS PERIOD: 24 A THE AIMS : - To practise Ss...

Ngày tải lên: 26/06/2013, 01:26

... Hang man game W A T E R S P O R T S Unit 12: WATER SPORTS - A Reading vocabulary Can you name the sport in the picture? - Vertical post ... bãng - Interfere with ST: Can thiÖp vµo - punch (v): §Êm Where is it played How people play it? Unit 12: WATER SPORTS - A Reading Activity 1: Matching A sprint B a To make someone leave a game 2.opponent ... Someone who tries to defeat another per...

Ngày tải lên: 20/07/2013, 01:26