Simple Machines Worksheet Answer Key

To print a part of the book 1. The resistance of the lid is 9 N. The metal part chops through the wood, pushing it apart into two smaller sections. The basic types of simple machines include the lever, inclined plane, pulley, screw, Wedge, Wheel and Axle. Zn + Pb(NO 3) 2 Zn(NO 3) 2 + Pb Single Replacement 2. With levers, the mechanical advantage comes from the ratio between the length of the lever on either side of the pivot. This Simple Machines Lesson Plan is suitable for 3rd Grade. Worksheet requires clarity in questioning avoiding any ambiguity. We won’t have to use as much _____ with our simple machines. Unlike simple machines, compound machines have moving parts. simple machines answer key the science spot. This is a unit on simple machines with posters, teaching ideas and worksheets. A bicycle is a compound machine that includes 3 simple machines: wheel and axle, gears, and a lever (the pedals). This crossword puzzle, “ Simple Machines, ” was created using the Crossword Hobbyist puzzle maker. In the first worksheet, kids have to label the simple machine. With just one subscription, you will have access to the math, spelling, vocabulary, and critical. Introduction to Simple Machines and Work. Showing top 8 worksheets in the category - Simple Machines. The Simple Machines Unit is now over 50+ pages. Examples of inclined planes are: A gliders and rockets B ramps and wedges C wheels and axles: 3. science,simple,machine,machines,plane,wheel,axles,pulley,lever,screw,wedge,comprehension Simple Machines Comprehension This worksheet has 2 printed pages. It is not a very difficult word scramble, but it's good for practicing simple machines, and should take around 15-20 minutes to do. This simple machine can be used to lift a weight. If you are that genius who can play physics then get through this test with 100% accuracy, we challenge you!. By Brooke Mattingly; 2 Simple Machines A simple machine is a machine with few or no moving parts. How do machines make work easier? _____ _____ 2. Answer the following questions regarding simple machine systems. picture work and machines worksheets simple friction for middle school types of experimental design worksheet high answers. Each of these meals is missing something! In this science worksheet, your child learns about healthy, balanced meals and then helps complete meals to make them balanced nutritionally. The efficiency of o machine con be colouiated using the following formula, percent efficiency = work output 100 work Input What is the efficiency Of {he following machines?. Working with Thermometers (page 31) Fill a bucket with water the night before. You must exert a force of 4. Click here for scavenger hunts from previous weeks. Work, Power & Simple Machines. Inclined Planes and Wedges Lesson from Simple Machines Worksheet, source: pinterest. simple machines worksheet answers or inclined plane wedge and screw worksheets webquest. Our Function Table Worksheets & In and Out Boxes Worksheets are free to download, easy to use, and very flexible. Simple Compound Complex Sentence Exercise Homework Sheets Kindergarten single addition worksheets Reading Temperature Worksheet. hammer, jar with a lid that screws on, etc. simple machines worksheets types of chemical reactions worksheet with reaction ch 7 answers awesome new chapter 5 template strand simple machines worksheet answer key. Wind generates energy only when the wind blows, so it provides an inconsistent supply of energy. Reading and math for kindergarten to grade 5. A healthy diet is a balancing act. It's up to all of us to fix it. See the Top 10 Questions. the kinetic energy of moving electrons 4. Image Free Printable Simple Machines Simple Machine from bill nye simple machines worksheet , source:cialisguidebook. 6th Grade On Simple Machines - Displaying top 8 worksheets found for this concept. 25 x 10 6 m/s 03. Inclined plane = 2. -5- ©Disney Sample Objectives for Blood and Circulation In this activity students will: Observe and describe a body system responsible for supply and transport. What is one type of simple machine? _____ 3. Answer the following questions regarding simple machine systems. In the Find what box, type the text or numbers you want to search for, or click the arrow in the Find what box, and then select a recent search item from the list. What is the IMA of this ramp? Show your work. Click here for an answer key for the work sheet. From inclined planes to moveable pulleys, this resource supports young scientists with defining each type of simple machine while identifying their mechanical advantage and real-world applications. The difference is in how its used. Which simple machine is found on the head of this ax? wedge 2. Get Started. Points of a Simple Machines Worksheet Middle School. work output of a machine divided by the work input. Assign students a Simple Machine Station to start at and set a rotation schedule. Students are asked to identify the six simple machines: (1) inclined plane, (2) lever, (3) pulley, (4) screw, (5) wedge, and (6) wheel and axle. Zinc and Lead (II) nitrate react to form Zinc Nitrate and Lead. Answer Section. Sample Learning Goals Explain the motion of an object on an incline plane by drawing free body diagrams. Simple Machine: A machine with few or no moving parts. Thermodynamics FR Key. Unlike simple machines, compound machines have moving parts. The worksheet starts with simple problems and includes a Punnet square framework and then adds more difficult problems where students must set up the squares on their own. Answers are included. The amount of work obtained from o machine Is olwcys less thon the amount of work put into it. The worksheet and the answer key in the following formats. Something that can hold things together or lift an object. This unit has been created for the grade 5 level based on the BC curriculum. Some are so simple, they don't have any moving parts! When you put simple machines together, you get a complex machine, like a lawn mower, a car, even an electric nose hair trimmer! Remember, a machine is any device that makes work easier. Write the best answer on the line. A lake was stocked with 350 trout. "All simple machines offer mechanical advantage, which is why we use them. What simple machine is the wheel based on? What do we call. Below we have 16 great pictures on 16 Simple Machines And Mechanical Advantage Worksheet Answer Key. Dirtmeister's Simple Machines - Learn more about simple machines at this site. See what you know about simple machines by using the quiz and worksheet. b The sociological perspective is an approach to understanding human behavior by placing it within its broader social context. Simple Machines 5 week science unit filled with hands on from Simple Machines Worksheet , source: pinterest. Some of the worksheets displayed are An honestly fun camp, Grade 4 reading comprehension work story and exercises, Comprehension skills, A clever answer, Reading comprehension, Literary passages close reading, The skeleton key, Road trip. Note-Taking Worksheet (page 35) Refer to Teacher Outline; student answers are underlined. 1 2 simple machines practice answer key. hammer, jar with a lid that screws on, etc. Vocabulary Review 1. Differentiated Video Worksheet, Quiz & Ans. The lists can be used with all of VocabularySpellingCity’s 35+ learning activities and science vocabulary games. When a student has completed a test in Study Island, the answers to questions answered incorrectly are provided in most cases. Simple Machines Worksheet Answer Key - The response worksheet will certainly demonstrate the progression on exactly how best to deal with the problems. What is a function? Domain and range. Work and Power Worksheet Answer each question by calculating for the missing variable. this simple kids worksheet question is confusing the internet answer First Grade Money Worksheets addition practice worksheets Dita Worksheet. The difference is in how it's used. When the Print window opens, type in a range of pages to print. ) In general, what do most simple machines do? Simple machines make work easier by reducing the force needed. ) Examples (Give real-life examples of the machines. friction the resistance of a surface to relative motion, as of an object sliding or rolling over it. Simple Machines Many of the devices that you use every day are simple machines. EUR Lex JOC 2014 042 E 0001 01 EN EUR Lex from bill nye simple machines worksheet answers , source:eur-lex. Easier to grade, more in-depth and best of all 100% FREE! Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade and more!. Click "Start" to begin the activity. The Crossword puzzle maker is used to make simple crossword puzzles. Showing top 8 worksheets in the category - 5th Grade Reading Comprehension. Answer Key To Simple Machines. Click here for an answer key for the work sheet. Many items can be used to teach basic skills that will be necessary for ninth through twelfth graders to master reading, writing, and spelling skills. History can be a difficult subject for many students, but luckily we’re here to help. In the first worksheet, kids have to label the simple machine. Our history question and answer board features hundreds of history experts waiting to provide answers to your questions. org/tools/tips/Recycling-Student-Supplies. Each question requires proper illustration and annotation, including labeling of forces, distances, direction, and unknown values. Some have no moving parts. We use analytics cookies to help us to improve our website by collecting and reporting information on its usage. Algebra trig worksheets free, factoring expressions worksheets, algebra 2 answer key. Powered by Create your own unique website with customizable templates. Complex machines are any machine that uses a combination of two or more simple machines to try and make work even simpler. Handling doorknobs, pulleys, pencil sharpeners, screws, and bicycle gears will help children learn how a simple machine functions. Simple Machines. Simple Machines by Sandie Lee 1. Classifying Simple Machines Worksheet. Here is an example of a sample question. edHelper Subscribers: click here to build a printable worksheet. pdf FREE PDF DOWNLOAD NOW!!! Source #2: simple machines answer key the science spot. The Math Salamanders hope you enjoy using these free printable Math worksheets and all our other Math games and resources. Many of our basic tools use levers, including scissors (2 class 1 levers), pliers (2 class 1 levers), hammer claws (a single class 2 lever), nut crackers (2 class 2 levers), and tongs (2 class 3 levers). Answer Section PROBLEM. Check out our essay example on Activity 1. Each question requires proper illustration and annotation, including labeling of forces, distances, direction, and unknown values. They will not produce great art or great literature or great philosophy; they will not be able to discover the secret springs of happiness in the human heart; they will know nothing of love and friendship. 1a - All About Simple Machines Answer Key. Differentiate between a non magnetic and magnetic substances. Is a wheel and axle a simple machine or a complex machine? Why?. This is a unit on simple machines with posters, teaching ideas and worksheets. It is a surface with a slope, or incline. The basic types of simple machines include the lever, inclined plane, pulley, screw, Wedge, Wheel and Axle. What is a fulcrum and what type of simple machine has one? 3. ratio of resistance force to effort force. Answers will vary. They (have, not) much memory and they (be, not) very powerful. Worksheets are Abc compound words work a l, Name simple machines, Name simple machines work section 83, Simple machines introduction to simple machines, Simple matchings work, Simple machines, Name simple machines, Name simple machines. The NRICH Project aims to enrich the mathematical experiences of all learners. When the Print window opens, type in a range of pages to print. WA Review Answers. Put all work on a separate sheet of paper. 6 Simple Machines Worksheet: Answer Key Ramps: Levers: Pulleys: Screw: Wheel and Axel: Wedge: 6 Simple Machines Worksheet Directions: Cut out the simple machines on the attached page and tape them under the appropriate label: ramp, lever, pulley, screws, wheels and axels, or wedge. Members receive unlimited access to 49,000+ cross-curricular educational resources, including interactive activities, clipart, and abctools custom worksheet generators. TeacherGeek Documents Master Log Reference and update list for document and lesson plan links across all TeacherGeek products. complex machines b. A discussion of how each type works and how to determine its mechanical advantage is given. It could, however, be used with regular education students in grades four through six. Simple Machines Super Teacher Worksheet Answer Key Free PDF eBook Download: Simple Machines Super Teacher Worksheet Answer Key Download or Read Online eBook simple machines super teacher worksheet answer key in PDF Format From The Best User Guide Database Simple Machines Which simple machine might be needed for a merry-go-round to turn?. T / F 5) Simple machines give us an advantage by changing the amount, speed or direction of forces. b The sociological perspective is an approach to understanding human behavior by placing it within its broader social context. Download or Read Online eBook simple machines super teacher worksheet answer key in To download free simple subjects super teacher worksheets you need to register. this simple kids worksheet question is confusing the internet answer First Grade Money Worksheets addition practice worksheets Dita Worksheet. “The difference in the value of F between using a machine and not using one is the mechanical advantage of the machine. Below you will find three simple machines worksheets. Name the six simple machines. What do a bicycle and a car have in common? They both move using the simple machine wheel and axle. com is an inclined plane coiled around a cylinder is a rigid bar that rotates around a !xed point is a "at surface tilted at an angle is a machine that rolls its load is a grooved wheel with a rope around Inclined Plane Wheel and axle Lever Wedge Screw Pulley is a device to split objects. load Amount of work a. Displaying all worksheets related to - Work And Simple Machines. This Simple Machine ABC Order Worksheet will teach your students how to put twenty words related to simple machines in alphabetical order and build vocabulary. Simple Machines Sort Cut and Paste Examples and DefinitionsWant a quick way to assess their learning or do some review- this is it!2 versions of this worksheet for students to cut and paste examples and definitions of the 6 different simple machines: Lever, Pulley, Wheel and Axle, Inclined Plane, Sc. inclined plane A plank or plane surface put at an angle to a horizontal surface. Awesome bill nye simple machines worksheet and bill simple machines video guide quiz sub plan worksheets no prep lesson 85 bill nye simple machines worksheet key. Math Fact Cafe does not charge a subscription fee for our services. Parts of a lever, class 1, class 2 and class 3 levers. It's up to all of us to fix it. =2:1 AMA=FR FE IMA=DE DR IMA=250 1023 g 1025 g Efficiency = IFE AFE IMA= 2= 500 1= x IMA=DE DR M. A true simple wheel and axle machine consists of a rod axle secured to a wheel. Simple Machines Scavenger Hunt. 22 Work and Simple Machines Key Terms Work and Simple Machines Directions: Write the correct terms next to their definitions below. Worksheet - Practice Questions for 7. Whether on-the-go, in the classroom, or at the kitchen table, our high-quality and affordable solutions are all about capturing life's many learning moments. The worksheet and the answer key in the following formats. lever A bar which rests on a fulcrum. Each question requires proper illustration and annotation, including labeling of forces, distances, direction, and unknown values. There are six simple machines, Screw, Wheel and Axle, Wedge, Pulley, Inclined Plane, Lever. When I heard that there was a Simple Machines STEM Activity Set available, I was eager to try it! The set consists of bright, colorful, and reasonably rugged plastic versions of each simple machine. ) Picture (Draw a picture of each type of simple machine. Match-up Worksheet Maker. 2AlBr 3 + 3 Cl 2 2AlCl 3 + 3Br 2 Single Replacement 3. The benchmark idea of this worksheet is to comprehend the type of simple machine associated with each of the twenty-four simple machines listed in the word bank and write them in the correct columns. Our fun science quizzes are a free interactive quiz for kids resource for teachers and educators of kids in elementary school, grammar school and preschool. hammer, jar with a lid that screws on, etc. Science from Murf LLC This is a FREE 16 page homework or classwork bundle about Newton's Three Laws of Motion and Simple Machines. The worksheets span a wide array of science topics. This will help them recognize important topics as well as prep them for the questions before they come up in the video. To print a part of the book 1. Invite students to proceed to the Student's Introduction (now the home page) where they will be introduced to simple machines, and the idea of Mechanical Advantage. Some of the worksheets displayed are Simple machines, Abc compound words work a l, Simple machines have only one or two, The 6 simple machines, Name simple machines work section 83, Simple machines introduction to simple machines, Simple machines terri wakild south haven public schools, Simple matchings work. Let's look at an example. simple machines worksheets types of chemical reactions worksheet with reaction ch 7 answers awesome new chapter 5 template strand simple machines worksheet answer key. The final result is at the time of evaluation, there's a great deal of confusion. , despite the workbook tab having been changed to something useful. F = ma = 12 kg 4 m/s2 = 48 kg m/s2 = 48 N Physical Science Motion and Forces. Simple Machines 4th Grade. Also, the blades of the scissors are wedges (another simple machine). 1 2 simple machines practice answer key. Continue with more related things such simple machines word search worksheets, bill nye simple machines worksheet and simple machines worksheet answer key. sciencespot. Students are frequently asked to discuss their answers and predictions with their partner. com It s simple Explore different tools that use force to make work from Simple Machines Worksheet. Click "Start" to begin the activity. pdf FREE PDF DOWNLOAD The Science Spot www. It will also help you find simple machines in compound machines! Remember, a compound machine is 2 or more simple machines that work together! Let’s learn more so you can invent your own machine!. Some of the worksheets displayed are An honestly fun camp, Grade 4 reading comprehension work story and exercises, Comprehension skills, A clever answer, Reading comprehension, Literary passages close reading, The skeleton key, Road trip. Functional notation: The argument of the function. These factorization worksheets will generate 6 Prime Factorization Tree problems per worksheet and the answer key is generated. Our fun science quizzes are a free interactive quiz for kids resource for teachers and educators of kids in elementary school, grammar school and preschool. Simple Machines Super Teacher Worksheet Answer Key Free PDF eBook Download: Simple Machines Super Teacher Worksheet Answer Key Download or Read Online eBook simple machines super teacher worksheet answer key in PDF Format From The Best User Guide Database Simple Machines Which simple machine might be needed for a merry-go-round to turn?. Think about what the machine does for you. Simple machines increase our ability to do work. In the first worksheet, kids have to label the simple machine. To replace text or numbers, press Ctrl+H, or go to Home > Editing > Find & Select > Replace. pdf FREE PDF DOWNLOAD NOW!!! Source #2: cstephenmurray simple machines and mechanical advantage answers. hall answer key full download. Work, Power & Simple Machines. The resources above cover the. Complex machines are any machine that uses a combination of two or more simple machines to try and make work even simpler. ) Examples (Give real-life examples of the machines. Some of the worksheets displayed are Simple machines, Abc compound words work a l, Simple machines have only one or two, The 6 simple machines, Name simple machines work section 83, Simple machines introduction to simple machines, Simple machines terri wakild south haven public schools, Simple matchings work. copies of Machines in Action 2 worksheet (S-3-4-3_Machines in Action 2 Worksheet and KEY. Our online simple machine trivia quizzes can be adapted to suit your requirements for taking some of the top simple machine quizzes. An example of a lever is: A the hammer B the see-saw C both of the above: 2. simple machines worksheets types of chemical reactions worksheet with reaction ch 7 answers awesome new chapter 5 template strand simple machines worksheet answer key. Download or Read Online eBook simple machines super teacher worksheet answer key in To download free simple subjects super teacher worksheets you need to register. com is an online resource used every day by thousands of teachers, students and parents. Simple Machines 5 week science unit filled with hands on from Simple Machines Worksheet , source: pinterest. It has a fulcrum, or pivot point, which can be located in the center, near the end or at the end. A discussion of how each type works and how to determine its mechanical advantage is given. Blogs Discontinued Hello Weber School District Parents, Teachers, and Staff, On March 15th, 2019, the server that housed our Wordpress Blogs has been. Take your first step with our environmental footprint calculator. picture work and machines worksheets simple friction for middle school types of experimental design worksheet high answers. The 6 simple machines are the lever, the inclined plane, the pulley, the wedge, the wheel and axle, and the screw. Also tutorials and answers on many physics topics. Chegg's textbook solutions go far behind just giving you the answers. Hamilton provides high quality, fully adaptable English, maths, science and cross-curricular topic lesson planning and teaching resources for primary school teachers to use in their classrooms. F = ma = 12 kg 4 m/s2 = 48 kg m/s2 = 48 N Physical Science Motion and Forces. vacuum cleaner. With just one subscription, you will have access to the math, spelling, vocabulary, and critical. simple machines answer key the science spot. ) In general, what do most simple machines do? Simple machines make work easier by reducing the force needed. The standard deviation is the square root of the variance. Simple Machines UNit packet. Image Free Printable Simple Machines Simple Machine from bill nye simple machines worksheet , source:cialisguidebook. pulley b b. Draw a mark at the midpoint of a sheet of paper along the side edge. Engineering Simple Machines Lesson Science from simple machines and mechanical advantage worksheet answers , source:pinterest. Answer key Printable Worksheets @ www. The benchmark idea of this worksheet is to comprehend the type of simple machine associated with each of the twenty-four simple machines listed in the word bank and write them in the correct columns. Each question requires proper illustration and annotation, including labeling of forces, distances, direction, and unknown values. The Function Table Worksheets & In and Out Boxes Worksheets are randomly created and will never repeat so you have an endless supply of quality Function Table Worksheets & In and Out Boxes Worksheets to use in the classroom or at home. Key Words Simple machines, complex machines, work, wheel, axle, inclined plane, wedge, screw, lever, pulley Summary The students will be introduced to the seven types of simple machines and their functions. Worksheet Packet - Simple Machines Identify the class of each lever shown below. Work, Power & Simple Machines. Dirtmeister's Simple Machines - Learn more about simple machines at this site. In using simple machines for human work, energy transfers from one object to another, or it changes in form as sound, heat or light energy. We use analytics cookies to help us to improve our website by collecting and reporting information on its usage. This simple machine can be used to lift a weight. Lever worksheets. Tests & Worksheets; Simple Machines Answer Key. A machine is a tool used to make work easier. In the second and third worksheet, students have to identify which simple machine best represents the objects shown. You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge. (Students. Encourage discussion with their partners. Primary Resources - free worksheets, lesson plans and teaching ideas for primary and elementary teachers. 2 Simple Machines Practice Problems Answer Key to start writing!. Create Custom Worksheets. Answer Section. See the Top 10 Questions. You will be required to answer a series of questions related to the information found on these sites. How is it different. Vocab Answers. Explain why the forces in our joints are several times larger than the forces we exert on the outside world with our limbs. Prove to Rube Goldberg’s friend that the invention will really work by using the information given. Wind generates energy only when the wind blows, so it provides an inconsistent supply of energy. moving force. Members receive unlimited access to 49,000+ cross-curricular educational resources, including interactive activities, clipart, and abctools custom worksheet generators. load Amount of work a. Simple Machines. Our fun science quizzes are a free interactive quiz for kids resource for teachers and educators of kids in elementary school, grammar school and preschool. simple machines answer key the science spot. Work And Simple Machines Worksheet Answers, Simple Machine Exles Worksheet Tim S Printables, Work Done Distance And Weight Scaffolded Worksheet With Answers By Simon 888, Simple Machines Worksheet With Answer By Kunletosin246 Teaching Resources, Simple Machines Grade 7 Free Printable Tests And Worksheets Helpteaching, Simple Machines Worksheets Six Simple Machines For, Simple Machines. Actually, we also have been remarked that 12 6th Grade Science Worksheets With Answer Key is being one of the most popular topic on the subject of document example right now. Quite often, all you desire are solutions. Simple Machines II. Create your own Word Find worksheet, Crossword Puzzle worksheet, Alphabetical Order worksheet, Scrambled Words worksheet and many more! And best of all 100% FREE! Just put in your words and hit create. Number Bonds can be classified as a simple arithmetic concept excellent for y oung children / students learning math at home. For work to be done on the object, the object has to __. In the second and third worksheet, students have to identify which simple machine best represents the objects shown. The standard deviation is the square root of the variance. simple machines worksheet answers or inclined plane wedge and screw worksheets webquest. Calculations using algebraic functions are similar to calculations involving fractions. How do machines make work easier? _____ _____ 2. Sample Simple Machines Theme Unit Worksheet Simple Machines Theme Unit This is only a sample worksheet. The students will be challenged to identify simple machines they come in contact with everyday. The resources above cover the. The principal of the lever is based on the assumption of using a real or imaginary fulcrum which is an applied wedge. Get started by making use of all the great teaching ideas, fun trivia and free worksheets. Answers will vary. Assessment / Evaluation of Students The instructor may assess the students in any/all of the following manners: 1. Simple machines worksheet answers. Understand magnetic poles and the attraction mechanism. Answer keys are provided. Easier to grade, more in-depth and best of all 100% FREE! Kindergarten, 1st Grade, 2nd Grade, 3rd Grade, 4th Grade, 5th Grade and more!. Put all work on a separate sheet of paper. Match the simple machine with its correct definition by writing the corresponding number in the answer column. You will find a nice helping of reading in the content area sheets here too. device made up of more than one simple machine Physica Science Worksheet: Machines. Complete the chart. Find info & services specific to you: A High School Student A Prospective Student A Current Student An Alumni A Community Member A Parent or Family Member An Employer A Developing Professional Faculty or Staff. Everything on Earth, everything in our solar system, everything in our galaxy, and everything in the Universe moves and interacts, and forces play a big part in that. We had some complex problems in this activity. • To measure the volume of a stone we put in a. WorksheetWorks. Unlike simple machines, compound machines have moving parts. Science from Murf LLC This is a FREE 16 page homework or classwork bundle about Newton's Three Laws of Motion and Simple Machines. Functional notation: The argument of the function. • At-home Activity: How Does Energy Work? Worksheet and Answer Key provided • Scavenger Hunt - Simple Machines: Students find 5 simple machines in their homes and list them on a sheet of paper. Get Started. fulcrum the point of support on which a lever turns. A true simple wheel and axle machine consists of a rod axle secured to a wheel. Whether on-the-go, in the classroom, or at the kitchen table, our high-quality and affordable solutions are all about capturing life's many learning moments. The resources above cover the. SHORT ANSWER. In the second and third worksheet, students have to identify which simple machine best represents the objects shown. simple machines for kids worksheets complete and subject predicate grade me compound worksheet answers experimental design high school inclined planes. Simple Machines, IMA, AMA, and Efficiency Worksheet A simple machine would be considered ideal if it had no friction. (Allow the students to answer) I am going to give you a worksheet that has questions about the excerpt that I read to you.