Khan Academy
Khan Academy: Prosopagnosia "You Seem Familiar, but I Can't Place Your Face"
Read the passage "Prosopagnosia - 'You Seem Familiar, But I Can't Place Your Face'" and complete the five-question quiz pertaining to Prosopagnosia, a neurological disorder causing the inability to recognize familiar people based on...
Khan Academy
Khan Academy: Prokaryotes Questions
This is a ten-question quiz pertaining to Prokaryotes.
Khan Academy
Khan Academy: Thermodynamics of Gallium Arsenide Formation
Read the passage "Thermodynamics of Gallium Arsenide Formation," and complete the related five-question quiz.
Khan Academy
Khan Academy: Control of Glucose Levels
Read the passage "Control of Glucose Levels" and complete the related five-question quiz.
Khan Academy
Khan Academy: Heat Generation in Brown Fat
Read the passage "Heat Generation in Brown Fat" and complete the related five-question quiz.
Khan Academy
Khan Academy: Pressure Regulation and Fluid Dynamics of the Respiratory System
This passage explains the pressure regulation and fluid dynamics of the human respiratory. Complete a five-question quiz over the information in the passage.
Khan Academy
Khan Academy: Applying to New Contexts Quick Guide
Some questions ask you to identify which scenario matches the principle in a passage. This type of question asks you to apply a principle or idea presented in the passage to a new context presented in the choices.
Khan Academy
Khan Academy: Fill Rectangles With Same Sized Squares
Practice figuring out how many equal-sized square fill a rectangle.
Khan Academy
Khan Academy: How to Practice With Our Multiple Choice Questions
We've included questions throughout this course to help you practice the skills and information you'll need for the multiple choice portion of your economics exam. Each time you answer a question, we show you the correct answer, along...
Khan Academy
Khan Academy: Active Reading Strategies Part 2: Rephrase and Predict
A powerful reading strategy designed to encourage you to trust yourself while working through the SAT Reading Test. If you know what you want before you start looking, you are a LOT less likely to make a bad choice..
Khan Academy
Khan Academy: Test Prep
A collection of links to test prep materials; NCLEX-RN if for nursing students and has advanced human biology materials; IIT JEE has trigonometry materials.
Khan Academy
Khan Academy: Action Potential Velocity
Brain cells called neurons send information and instructions throughout the brain and body. The information is sent via electro-chemical signals known as action potentials that travel down the length of the neuron. These neurons are then...
Khan Academy
Khan Academy: Signal Propagation: The Movement of Signals Between Neurons
This article explains how the nervous system transmits signals along and between neurons.
Khan Academy
Khan Academy: Are Viruses Dead or Alive?
Are viruses alive or dead? How do we determine whether something is alive? Let's compare viruses to the 7 criteria researchers have set to determine if something is alive.
Khan Academy
Khan Academy: Passive Transport & Active Transport Across Cell Membrane Article
The cell membrane is one of the great multi-taskers of biology. It provides structure for the cell, protects cytosolic contents from the environment, and allows cells to act as specialized units. Learn how the membrane functions to...
Khan Academy
Khan Academy: Egg Meets Sperm
Although it is happening every hour of every day, all over the world, the story of egg meeting sperm is still a tale worth telling. Millions of candidates set off on a long and perilous journey with a single target at the end, and if the...
Khan Academy
Khan Academy: How to Approach Sentence and Paragraph Sequence Questions
Tips for tackling the questions on the SAT Writing and Language Test that ask you to improve the order of sentences in a paragraph or paragraphs in a passage.
Khan Academy
Khan Academy: How to Approach Sentence Addition/deletion Questions
A step-by-step approach to a common question type on the SAT Writing and Language Test: adding or deleting sentences.
Khan Academy
Khan Academy: Apostrophe Use Quick Guide
A short guide on how to use apostrophes correctly.
Khan Academy
Khan Academy: Navigating the Stages of Sleep
Read a passage about sleep stages and answer the follow-up questions.
Khan Academy
Khan Academy: Myelogenous Leukemia and Two Chemotherapeutic Agents
Read a passage about chemotherapeutic agents and answer the follow-up questions using the graphs provided.
Khan Academy
Khan Academy: Additional Evidence Quick Guide
There are two kinds of additional evidence questions on the LSAT: strengthening evidence and weakening evidence. This article describes strategies for answering these types of questions along with examples.