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What Is Newton's First Law? (article) | Khan Academy

Also called the law of inertia, this is the most important thing to realize about motion.

Actived: Thursday Jan 1, 1970

Detail: https://www.khanacademy.org/science/physics/forces-newtons-laws/newtons-laws-of-motion/a/what-is-newtons-first-law

Subject-verb agreement (practice) | Khan Academy

Posted: (53 years ago) Agreement is the art of making sure that sentence parts connect with one another.

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Cis-trans isomerism (video) | Khan Academy

Posted: (53 years ago) If an alkene contains two identical groups on either end of the double bond, we can use cis–trans terminology to distinguish between geometric isomers of the alkene. If the two groups are on the same side of the double bond, the alkene is the cis isomer. If the two groups are on opposite sides of the double bond, the alkene is the trans isomer.

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Prime factorization (practice) | Khan Academy

Posted: (53 years ago) Factor two-digit numbers into their prime factorizations.

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Free, fun educational app for young kids | Khan Academy Kids

Posted: (53 years ago) Inspire a lifetime of learning with our educational app for kids ages 2-7. Kids can learn reading, writing, math, counting, ABCs, addition, subtraction, social-emotional skills, & more. 100% free on iPhone, iPad, Android, and Amazon

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Coordinating and subordinating conjunctions - Khan Academy

Posted: (53 years ago) Identify and use coordinating and subordinating conjunctions in sentences.

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Intro to SQL: Querying and managing data | Khan Academy

Posted: (53 years ago) Learn how to use SQL to store, query, and manipulate data. SQL is a special-purpose programming language designed for managing data in a relational database, and is used by a huge number of apps and organizations.

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Posted: (53 years ago) Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501(c)(3) nonprofit organization. Donate or volunteer today!

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Recognizing run-ons and comma splices (practice) | Khan Academy

Posted: (53 years ago) Run-on sentences and comma splices happen when a writer isn’t careful with commas. Let’s see how you do!

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Meet the comma (practice) | Khan Academy

Posted: (53 years ago) Commas separate parts of sentences from each other, and they do so in many different ways.

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Statistical questions (practice) | Khan Academy

Posted: (53 years ago) Practice spotting the difference between statistical and non-statistical questions.

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Sign up | Khan Academy

Posted: (53 years ago) Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

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Negative exponents (practice) | Khan Academy

Posted: (53 years ago) Practice computing numbers raised to positive and negative exponents. Bases may be fractions.

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Basic ratios (practice) | Khan Academy

Posted: (53 years ago) Represent the ratio between two quantities with numbers and with words.

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Slope formula (equation for slope) | Algebra (article) | Khan Academy

Posted: (53 years ago) Learn how to write the slope formula from scratch and how to apply it to find the slope of a line from two points.

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pH Scale: Acids, bases, pH and buffers (article) | Khan Academy

Posted: (53 years ago) Acidity and basicity, proton concentration, the pH scale, and buffers.

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Intro to matrices (article) | Matrices | Khan Academy

Posted: (53 years ago) Matrix is an arrangement of numbers into rows and columns. Make your first introduction with matrices and learn about their dimensions and elements.

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Atomic number, atomic mass, and isotopes - Khan Academy

Posted: (53 years ago) Fundamental properties of atoms including atomic number and atomic mass. The atomic number is the number of protons in an atom, and isotopes have the same atomic number but differ in the number of neutrons.

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Adding & subtracting negative numbers (practice) | Khan Academy

Posted: (53 years ago) Practice solving addition and subtraction problems with integers (positive and negative numbers).

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What is Newton's second law? (article) | Khan Academy

Posted: (53 years ago) Review your understanding of Newton's second law in this free article aligned to NGSS standards.

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Stages of transcription - Khan Academy

Posted: (53 years ago) An in-depth looks at how transcription works. Initiation (promoters), elongation, and termination.

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Multiplying matrices (article) | Matrices | Khan Academy

Posted: (53 years ago) When we multiply a matrix by a scalar (i.e., a single number) we simply multiply all the matrix's terms by that scalar. We can also multiply a matrix by another matrix, but this process is more complicated. Even so, it is very beautiful and interesting. Learn how to do it with this article.

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C3, C4, and CAM plants (article) | Khan Academy

Posted: (53 years ago) If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

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What is buoyant force? (article) | Fluids | Khan Academy

Posted: (53 years ago) Why the heck do things float? Math: Get ready courses; Get ready for 3rd grade; Get ready for 4th grade; Get ready for 5th grade

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Complex and compound-complex sentences (practice) | Khan Academy

Posted: (53 years ago) Complex sentences are simple sentences with dependent or subordinate clauses added to them. Compound-complex sentences are compound sentences with dependent or subordinate clauses added to them.

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Democratic ideals in the Declaration of Independence and the ...

Posted: (53 years ago) The Declaration of Independence and the Constitution provide the ideological foundations for the democratic government of the United States.

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The relationship between the states and the federal government

Posted: (53 years ago) States and the federal government have both exclusive powers and concurrent powers. There is an ongoing negotiation over the balance of power between the two levels.

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AP US History periods and themes - Khan Academy

Posted: (53 years ago) May 04, 2016  · Your guide to major themes, documents, and key words for the AP US History exam!

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Line and angle proofs (practice) | Khan Academy

Posted: (53 years ago) Prove theorems about lines and angles using triangle congruence criteria and algebra.

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Balancing chemical equations 1 (practice) | Khan Academy

Posted: (53 years ago) Practice balancing chemical equations. Math: Get ready courses; Get ready for 3rd grade; Get ready for 4th grade; Get ready for 5th grade

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Interpreting slope and y-intercept for linear models - Khan Academy

Posted: (53 years ago) Practice explaining the meaning of slope and y-intercept for lines of best fit on scatter plots.

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The citric acid cycle | Cellular respiration (article) | Khan Academy

Posted: (53 years ago) Overview and steps of the citric acid cycle, also known as the Krebs cycle or tricarboxylic acid (TCA) cycle.

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What is conservation of energy? (article) | Khan Academy

Posted: (53 years ago) Learn what conservation of energy means, and how it can make solving problems easier.

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Slope from graph | Algebra (practice) | Khan Academy

Posted: (53 years ago) Find the slope of a line on the coordinate plane. Math: Get ready courses; Get ready for 3rd grade; Get ready for 4th grade; Get ready for 5th grade

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Popular culture and mass media in the 1950s - Khan Academy

Posted: (53 years ago) In the 1950s, financial prosperity allowed young Americans to participate in a shared culture of rock and roll music, movies, and television.

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Marginal cost & differential calculus (video) | Khan Academy

Posted: (53 years ago) In economics, the idea of marginal cost can be nicely captured with the derivative.

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Find the formula for ionic compounds (practice) | Khan Academy

Posted: (53 years ago) Practice finding the formula when given the name of an ionic compound.

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Arithmetic | Khan Academy

Posted: (53 years ago) Learn the essentials of arithmetic for free—all of the core arithmetic skills you'll need for algebra and beyond. Full curriculum of exercises and videos.

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