Ck 12

When cardiac muscle contracts, the heart beats and pumps blood. Cardiac muscle contains a great many mitochondria, which produce ATP for energy. This helps the heart resist fatigue. Contractions of cardiac muscle are involuntary, like those of smooth muscle. Cardiac muscle, like skeletal muscle, is arranged in bundles, so it appears …Dec 3, 2564 BE ... CK-12 offers high-quality, free K-12 resources that are easy to set up for any type of remote, hybrid, or in-class learning situation.CK-12 Foundation is the data controller with respect to the personal information collected through the CK-12 Platform. If you are located in the EU and you are unhappy with our resolution of your privacy-related inquiry or request, you have the right to lodge a complaint with your Supervisory Authority.FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.CK-12 offers free resources for students, parents, teachers, schools, and districts to learn STEM concepts and skills. Explore interactive lessons, concept-based learning, adaptive practice, interactives, assignments, and LMS integration with CK-12. EPISD 2019-2020 Economics with Emphasis on the Free Enterprise System. El Paso Independent School District in El Paso Texas created this Economics text for its high school course using OER, CC, and public domain content from a variety of sources by educators in the district. The course is aligned to the Texas TEKS and is usually taken in Grade 11.FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.The organs are those of the digestive system. The processes are digestion and absorption. The digestive system is the body system that breaks down food and absorbs nutrients. It also gets rid of solid food waste. The digestive system is mainly one long tube from the mouth to the anus, known as the gastrointestinal tract (GI tract).The Next Generation Science Standards (NGSS) is a nationwide effort to evolve a framework of rigorous K-12 cross-disciplinary standards for students learning science. We can help you find CK-12 content that is aligned to these standards and make it available to these classes. Use our Next Generation Science Standards Browser to see concepts ... Pollination is the fertilization step in the sexual reproduction of plants. Pollen consists of tiny grains that are the male gametes of plants. They are produced by a male flower part called the anther (see the Figure below ). Pollination occurs when pollen is transferred from the anther to the stigma of the same or another flower.By CK-12 | Last Modified: Aug 21, 2023 Published CK-12's College Human Biology FlexBook® covers cell biology, genetics, evolution, physiology, disease, nutrition, and ecology.Centripetal force is, simply, the force that causes centripetal acceleration. Objects that move in uniform circular motion all have an acceleration toward the center of the circle and therefore, they must also suffer a force toward the center of the circle. That force is the centripetal force. For orbiting satellites, such as the moon orbiting ...Get fast & accurate homework help with Flexi, our AI based student tutor. Available 24/7 for K-12 subjects like Math & Science. Blood gang hand signs include a small letter “b” formed with one hand, the letters “CK” formed with one hand, a large letter “B” formed with one hand, and the word “blood” formed w...The CK-12 Foundation is a leading non-profit organization dedicated to increasing access to high-quality K-12 STEM Open Educational Resources (OER). Learn more. Sign Up 100% FREE FOREVER. Already a member of CK-12? Sign in. GO BACK . 100% FREE MATH WORKSHEETS.Foster critical thinking skills with practice problems, video hints, and full step-by-step solutions, all clearly aligned with Common Core standards.By CK-12 | Last Modified: Dec 01, 2023 Published An introduction to theoretical probability and data organization, students will learn about events, conditions, random variables, and graphs and tables that allow them to manage data.The main chemical components of living organisms are known as organic compounds. Organic compounds are molecules built around the element carbon (C). Living things are made up of very large molecules. These large molecules are called macromolecules because “macro” means large; they are made by smaller molecules …Catch up on math and science classes with CK-12's FlexLets™, designed to make sure that you know the essentials. Pick a Subject. Watch: CK-12's FlexLets™ Webinar. Upcoming Webinars: CK-12 FlexLets™ ...School closure: How to teach online and learn from home with CK-12. Set up remote learning quickly with CK-12. Hand-picked math and science lessons, popular during this time of year, ready to be shared. Always free.CK-12 Foundation is the data controller with respect to the personal information collected through the CK-12 Platform. If you are located in the EU and you are unhappy with our resolution of your privacy-related inquiry or request, you have the right to lodge a complaint with your Supervisory Authority.The transfer of energy by electromagnetic waves is called electromagnetic radiation. The electric and magnetic fields of an electromagnetic wave are areas of electric or magnetic force. The fields can exert force over objects at a distance. An electromagnetic wave begins when an electrically charged particle vibrates.FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.According to the Big Bang theory, the universe began about 13.7 billion years ago. Everything that is now in the universe was squeezed into a very small volume. Imagine all of the known universe in a single, hot, chaotic mass. An enormous explosion — a big bang — caused the universe to start expanding rapidly.CK-12 is an app to help students, and teachers improve K-12 learning globally by providing self-pace learning content & tools. Learn over 5,000 math and science concepts at your …The kidneys are a pair of bean-shaped organs just above the waist. A cross-section of a kidney is shown in Figure below. The function of the kidney is to filter blood and form urine. Urine is the liquid waste product of the body that is excreted by the urinary system. Nephrons are the structural and functional units of the kidneys.Work · The use of force to move an object. Work = Force × Distance · Work · Roller Coaster · The Work-Energy Theorem - Overview · Work Discussion...Resources · Identifies renewable and nonrenewable resources based on the rate at which humans use a resource. · Resources · Resources: Welcome to the ...PLIX - Play, Learn, Interact and Xplore a concept with PLIX. Study Guides - A quick way to review concepts. Biology is the study of living organisms which is divided into many specialized fields covering their origin, morphology, physiology, anatomy, behavior, and distribution. Grade K–5 Science FlexBooks. ®. CK-12 Kindergarten Science. CK-12 First Grade Science. CK-12 Second Grade Science. CK-12 Third Grade Science. CK-12 Fourth Grade Science. CK-12 Fifth Grade Science.The organs are those of the digestive system. The processes are digestion and absorption. The digestive system is the body system that breaks down food and absorbs nutrients. It also gets rid of solid food waste. The digestive system is mainly one long tube from the mouth to the anus, known as the gastrointestinal tract (GI tract).CK-12 FlexBook® 2.0 for Adult Education are in the areas of Adult Basic Education (ABE) and Adult Secondary Education (ASE) - High School Diploma and High ...STANDARDS. Electromagnetic Spectrum, Wavelength and Frequency Calculations, Quantization of Energy, Atomic Emission Spectra, Bohr's Atomic Model, Spectral Lines of Hydrogen. WORKSHEET. Discover a new way of …CK-12 launches fully customizable Math and Science textbooks that are free for the world to download or view online. 2007 CK-12 was born. A small, yet talented group ... FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.Assign CK-12 Resources. No need to set up separate classes in CK-12. Simply create a new assignment in Canvas, using the “External Tool” submission type when making an assignment. Then browse and assign a CK-12 lesson or resource that will show up in that class. Turning in Student Work for CK-12 on Canvas. Step 3.Introduces the structures and functions of the three types of the messenger molecule RNA. Estimated4 minsto complete. Progress. Practice RNA. Practice.FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.The organs are those of the digestive system. The processes are digestion and absorption. The digestive system is the body system that breaks down food and absorbs nutrients. It also gets rid of solid food waste. The digestive system is mainly one long tube from the mouth to the anus, known as the gastrointestinal tract (GI tract).FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.Adult Education. Basic Education. High School Diploma. High School Equivalency. Career Technical Ed. English as 2nd Language.File:CK-12 spaceship.png · to share – to copy, distribute and transmit the work · to remix – to adapt the work.CK12-Foundation offers free, customizable and interactive digital textbooks, practice questions, simulations and study guides for math, science and English. Whether you …Damage to the heart, brain or skeletal muscles causes elevated creatine kinase levels, according to Better Medicine. Higher creatine kinase levels are often associated with heart a...Grade K–5 Science FlexBooks. ®. CK-12 Kindergarten Science. CK-12 First Grade Science. CK-12 Second Grade Science. CK-12 Third Grade Science. CK-12 Fourth Grade Science. CK-12 Fifth Grade Science.CK-12 Foundation offers free online textbooks for math, science, English, writing, spelling, social studies, and more for K-12 students and teachers. Browse by subject, grade, or …About us. The *CK-12 Foundation* (www.ck12.org) provides free access to content and technology tools that empower students as well as teachers to go further than ever before. #CK12 Our strong ...How to Register. Registering as a student on CK-12 is free and allows you to learn new material, track your progress and much more. Click Join in the top right of the CK-12 homepage. Sign up using either your Google, …Mechanical Weathering. Mechanical weathering (also called physical weathering) breaks rock into smaller pieces. These smaller pieces are just like the bigger rock, but smaller. That means the rock has changed physically without changing its composition. The smaller pieces have the same minerals, in just the same proportions as …According to the Big Bang theory, the universe began about 13.7 billion years ago. Everything that is now in the universe was squeezed into a very small volume. Imagine all of the known universe in a single, hot, chaotic mass. An enormous explosion — a big bang — caused the universe to start expanding rapidly.Learn biology with Flexi, the AI student tutor that adapts to your needs and helps you master the concepts. Explore the interactive FlexBook, get hints and recommendations, and fill your knowledge gaps with Flexi.Start with CK-12 recommended concepts. Info. Connections. Math and Science. Math. Science. Lenses Physical Science Double Concave Lenses Physics Double Convex Lenses Physics Vision and the Eye Physical Science Optical Instruments Physical Science Eyes Biology Mirrors Physical Science Convex Mirrors Physics Vision Correction Biology Concave ... Assign CK-12 Resources. No need to set up separate classes in CK-12. Teachers can go to Classwork in their Google Classroom, create a new assignment, and choose the CK-12 add-on. From there, they can browse and assign a CK-12 lesson or resource that will show up in that class. No need to set up separate classes in CK-12. Partners. Our community of partners graciously contribute their expertise and resources to CK-12 Foundation. By joining hands with these great organizations, we’re able to achieve our daily mission of making K-12 education equitable and accessible to everyone. We’d like to thank all of our partners for their continued support.CK-12 is an app to help students, and teachers improve K-12 learning globally by providing self-pace learning content & tools. Learn over 5,000 math and science concepts at your own pace and in your own style! CK-12 Interactive Algebra 1. This is a complete, full-year Algebra 1 course with tons of interactivity included in every lesson. Some lessons include videos, and all include interactives and newly added inline questions. Inline questions offer instant, per-answer feedback to help you learn by knowing why your answers are correct or incorrect.Oct 6, 2015 · Chromosomes and Genes The DNA of a chromosome is encoded with genetic instructions for making proteins. These instructions are organized into units called genes.Most genes contain the instructions for a single protein. CONCEPTS. Current, Voltage and Current, Ohm's Law, Circuits, Energy Transfer in Electric Circuits, Series Circuits, Total Resistance in Series Circuits, Parallel Circuits, Total Resistance in Parallel Circuits, Circuit Problem Solving, …We believe every child should have equal access to great education. We provide free technology to educators and students. 200 million served worldwide.Nov 18, 2565 BE ... CK-12 creates high-quality and free K-12 resources that are easy to set up for any type of virtual, hybrid, or in-class learning situation.Life Science. PLIX - Play, Learn, Interact and Xplore a concept with PLIX. Life Science is the study of life and living organisms, including their physical and chemical structure, function, development, and evolution.Aug 12, 2021 · CK-12 Biology. Difficulty Level: At Grade | Created by: CK-12. Last Modified: Aug 12, 2021. Read Resources Details. Table of Contents. 1.0 What is Biology? Comparative anatomy is the study of the similarities and differences in the structures of different species. Similar body parts may be homologies or analogies. Both provide evidence for evolution. Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor.FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.The CK-12 Foundation is a California-based non-profit organization which aims to increase access to low-cost K-12 education in the United States and abroad. CK-12 provides free and customizable K-12 open educational resources aligned to state curriculum standards . Life Science. PLIX - Play, Learn, Interact and Xplore a concept with PLIX. Life Science is the study of life and living organisms, including their physical and chemical structure, function, development, and evolution.Grade K–5 Science FlexBooks. ®. CK-12 Kindergarten Science. CK-12 First Grade Science. CK-12 Second Grade Science. CK-12 Third Grade Science. CK-12 Fourth Grade Science. CK-12 Fifth Grade Science. FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation. What's the difference? ... Play. Learn. Interact. eXplore. ... Stand out as an educator. Become CK-12 Certified. ... Know the essentials.Become CK-12 Certified. Webinars. Live and archived sessions to learn about CK-12. Other Resources; CK-12 Resources; Concept Map; Testimonials; CK-12 Mission; Meet the Team; Save Time. Teach more! The CK-12 Foundation is a leading non-profit organization dedicated to increasing access to high-quality K-12 STEM Open Educational Resources …Using CK-12 for Homeschooling. CK-12 can be an invaluable tool for use in conjunction with the homeschooling curriculum you have chosen. If you are still choosing a curriculum, you may want to review your state's guidelines and see what their guidelines and requirements are. To implement your curriculum, all of the tools and resources CK-12 has ... 1. Use the statement: If n > 2, then n 2 > 4. a) Find the converse, inverse, and contrapositive. b) Determine if the statements from part a are true or false. If they are false, find a counterexample. The original statement is true. Converse _: If n 2 > 4, then n > 2. F a l s e. n could be − 3, making n 2 = 9.Grade K–5 Science FlexBooks. ®. CK-12 Kindergarten Science. CK-12 First Grade Science. CK-12 Second Grade Science. CK-12 Third Grade Science. CK-12 Fourth Grade Science. CK-12 Fifth Grade Science.Simplified Interface. All of CK-12's tools and resources are now unified in one toolbar. Sep 12, 2562 BE ... In addition to CK-12's Adaptive Practice, which adjusts to the skill level of each student, teachers can assign various modalities—from ...CK-12 Foundation offers free online textbooks for math, science, English, writing, spelling, social studies, and more for K-12 students and teachers. Browse by subject, grade, or …Welcome to CK-12 Foundation | CK-12 Foundation. Home Science FlexBooks CK-12 Third Grade Science Ch1 1. Forces. Add to Library. Share with Classes. Add to FlexBook® Textbook. Customize. Quick tips. Notes/Highlights.Current = 12 v o l t s 2 o h m s = 6 amps. Q: If a 120-volt voltage source is connected to a wire with 10 ohms of resistance, how much current is flowing through the wire? A: Substitute these values into the equation for current: Current = 120 v o l t s 10 o h m s = 12 amps. Explore how Ohm's Law affects the current in a circuit by launching ...About us. The *CK-12 Foundation* (www.ck12.org) provides free access to content and technology tools that empower students as well as teachers to go further than ever before. #CK12 Our strong ...Jun 26, 2013 · The energy carried by an electric current depends on the charge transferred and the potential difference across which it moves, E = q V.The voltage or potential difference is expressed in Joules/coulomb and multiplying this by the charge in coulombs yields energy in Joules. Save teachers time and engage students with a new, simpler interface!Adult Education. Basic Education. High School Diploma. High School Equivalency. Career Technical Ed. English as 2nd Language.CK-12 CBSE Maths Class 9. This interactive CBSE Math Class 9 course has been designed to support the evolution in Mathematics pedagogy. The intent is to encourage you to develop conceptual understanding using the content and skills of mathematics, in order to promote deep learning. This is a complete, full-year coursebook …Calculus is the branch of mathematics that extends the application of algebra and geometry to the infinite. Calculus enables a deep investigation of the continuous change that typifies real-world behavior. With calculus, we find functions for the slopes of curves that are not straight. We also find the area and volume of curved figures beyond ... Simplified Interface. All of CK-12's tools and resources are now unified in one toolbar. Here's how: Go to www.ck12.org. Click Join in the top right of the CK-12 homepage. Sign up using either your Google, Facebook, Twitter or Microsoft accounts or register using an email address. FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.This can include CK-12 content and links to external content. The Q&A section of classes allows you to conduct class discussions. You can also view reports on student progress, and manage class membership. Classes also allow you to assign practices and quizzes (also called "assessments") to your students. ...CK-12 Calculus - Ebook written by CK-12 Foundation. Read this book using Google Play Books app on your PC, android, iOS devices.Welcome to CK-12 Foundation | CK-12 Foundation. Home Science Biology FlexBooks CK-12 Biology Ch3 1. Introduction to Cells. Add to Library. Share with Classes.The Moon is Earth’s only natural satellite, a body that moves around a larger body in space. The Moon orbits Earth for the same reason Earth orbits the Sun — gravity. The Moon is 3,476 km in diameter, about one-fourth the size of Earth. The satellite is also not as dense as the Earth; gravity on the Moon is only one-sixth as strong as it is ...Centripetal force is, simply, the force that causes centripetal acceleration. Objects that move in uniform circular motion all have an acceleration toward the center of the circle and therefore, they must also suffer a force toward the center of the circle. That force is the centripetal force. For orbiting satellites, such as the moon orbiting ...CK-12 Earth Science for Middle School. By CK-12 | Last Modified: Nov 27, 2023. Published. CK-12 Earth Science for Middle School FlexBook® covers core earth science concepts and includes PLIX, real world examples, videos, and study guides. Standards Alignment:The main chemical components of living organisms are known as organic compounds. Organic compounds are molecules built around the element carbon (C). Living things are made up of very large molecules. These large molecules are called macromolecules because “macro” means large; they are made by smaller molecules …The Next Generation Science Standards (NGSS) is a nationwide effort to evolve a framework of rigorous K-12 cross-disciplinary standards for students learning science. We can help you find CK-12 content that is aligned to these standards and make it available to these classes. Use our Next Generation Science Standards Browser to see concepts ... FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.The kidneys are a pair of bean-shaped organs just above the waist. A cross-section of a kidney is shown in Figure below. The function of the kidney is to filter blood and form urine. Urine is the liquid waste product of the body that is excreted by the urinary system. Nephrons are the structural and functional units of the kidneys.Foster critical thinking skills with practice problems, video hints, and full step-by-step solutions, all clearly aligned with Common Core standards.Foster critical thinking skills with practice problems, video hints, and full step-by-step solutions, all clearly aligned with Common Core standards. About us. The *CK-12 Foundation* (www.ck12.org) provides free access to content and technology tools that empower students as well as teachers to go further than ever before. #CK12 Our strong ...1. Use the statement: If n > 2, then n 2 > 4. a) Find the converse, inverse, and contrapositive. b) Determine if the statements from part a are true or false. If they are false, find a counterexample. The original statement is true. Converse _: If n 2 > 4, then n > 2. F a l s e. n could be − 3, making n 2 = 9.We would like to show you a description here but the site won’t allow us. Simplified Interface. All of CK-12's tools and resources are now unified in one toolbar. FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.Homeostasis refers to the balance, or equilibrium, within the cell or a body. It is an organism's ability to keep a constant internal environment. Keeping a stable internal environment requires constant adjustments as conditions change inside and outside the cell. The adjusting of systems within a cell is referred to as homeostatic regulation.FlexBook Platform®, FlexBook®, FlexLet® and FlexCard™ are registered trademarks of CK-12 Foundation.Jun 26, 2013 · The energy carried by an electric current depends on the charge transferred and the potential difference across which it moves, E = q V.The voltage or potential difference is expressed in Joules/coulomb and multiplying this by the charge in coulombs yields energy in Joules. Assign CK-12 Resources. No need to set up separate classes in CK-12. Teachers can go to Classwork in their Google Classroom, create a new assignment, and choose the CK-12 add-on. From there, they can browse and assign a CK-12 lesson or resource that will show up in that class. No need to set up separate classes in CK-12. CK12-Foundation offers free online courses in science, math, social studies, photography and adult education. You can browse, study and practice thousands of questions and topics, and access interactive and adaptive learning tools. Systemic Circulation. Systemic circulation is the part of the circulatory system that carries blood between the heart and body. It is illustrated in Figure below. Oxygenated blood leaves the left ventricle through the aorta. The aorta and other arteries transport the blood throughout the body, where it gives up oxygen and picks up carbon dioxide.Assessments. You can create your own quizzes, or use those that already exist on the site. Existing practices can be found in our Adaptive Practice library. They are also embedded in most lessons in our FlexBook 2.0 platform. Note that not all subjects have assessments. You can customize practices and quizzes, and create your own questions. By CK-12 | Last Modified: Dec 01, 2023 Published An introduction to theoretical probability and data organization, students will learn about events, conditions, random variables, and graphs and tables that allow them to manage data. | Cwpghsilwk (article) | Mxusr.