star
Ervaringen van deelnemers

Ruim 145.000 onafhankelijke ervaringen.

Khan Academy: 2757 producten

Khan Academy is an organization on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere. All of the site's resources are available to anyone. It doesn't matter if you are a student, teacher, home-schooler, principal, adult returning to the classroom after 20 years, or a friendly alien just trying to get …

Bekijk Khan Academy

check_box_outline_blank

Health and medicine: Defining AIDS and AIDS defining illnesses

Logo van Khan Academy

Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…

check_box_outline_blank

Health and medicine: What is pulmonary hypertension?

Logo van Khan Academy

Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

check_box_outline_blank

Organic chemistry: Preparation of acid anhydrides

Logo van Khan Academy

How to prepare acid anhydrides from carboxylic acids. Organic chemistry Sal and Jay cover topics covered in college organic chemistry cours…

check_box_outline_blank

Biology: Ecology introduction

Logo van Khan Academy

Ecology is the study of how living things interact with each other and their environment. This includes living things (biotic factors) and …

check_box_outline_blank

Organic chemistry: Protection of alcohols

Logo van Khan Academy

Use of protecting groups to "hide" alcohols while other groups in a molecule react. Organic chemistry Sal and Jay cover topics covered in c…

check_box_outline_blank

High school biology: Cartilage

Logo van Khan Academy

High school biology The musculoskeletal system Topic: Science Learn about all the sciences, from physics, chemistry and biology, to cosmolo…

check_box_outline_blank

Health and medicine: Osteoarthritis vs rheumatoid arthritis treatments

Logo van Khan Academy

Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…

check_box_outline_blank

Chemistry: Common ion effect and buffers

Logo van Khan Academy

The common ion effect describes the effect on ​equilibrium that occurs when a common ion (an ion that is already contained in the solution)…

check_box_outline_blank

High school biology: Biogeography: Where life lives

Logo van Khan Academy

As our planet has coughed up new oceanic islands and ripped its land masses apart, organisms have found themselves stranded in new environm…

check_box_outline_blank

Chemistry: Buffer solution pH calculations

Logo van Khan Academy

Example of calculating the pH of a buffer solution using the Henderson-Hasselbalch equation, including the pH of the buffer solution after …

check_box_outline_blank

Health and medicine: Visual cues

Logo van Khan Academy

Health and medicine The medical world can be a confusing place. Patients, their families, and even students entering health fields might fe…

check_box_outline_blank

Chemistry: Atomic radius trends on periodic table

Logo van Khan Academy

How atomic radius is defined, and trends across a period and down a group. Chemistry Did you know that everything is made out of chemicals?…

check_box_outline_blank

Health and medicine: Inflammatory bowel disease: Treatment

Logo van Khan Academy

Visit us (http://www.khanacademy.org/science/healthcare-and-medicine) for health and medicine content or (http://www.khanacademy.org/test-p…

check_box_outline_blank

Health and medicine: Units for common medical lab values

Logo van Khan Academy

Figure out how to interpret the units in common medical labs including the CBC, Chem 10, and LFTs. Rishi is a pediatric infectious disease …

check_box_outline_blank

Health and medicine: Lung cancer metastasis

Logo van Khan Academy

Metastasis is the spread of cancer cells from one area of the body (such as an organ) to another. As cancerous cells multiply, some cells m…