Physics Made Easy - Physics Made Easy brings you a condensed version of Astrophysics. Simulations are available for students and teachers of K-12 as well as university level. PhET - PhET provides simulations that model the principles of many different fields of Science. NKU Haile Digital Planetarium - Learn about upcoming shows and Astronomy Summer Camps, or host a birthday party at the NKU Haile Planetarium. Games, quizzes and activities for kids, and various lesson plans for teachers. NASA Space Place - NASA's page devoted to science education. NASA Kid's Club - NASA for kids! Lots of information, games and activities. NASA - The National Aeronautic and Space Association's main website. Khan Academy - Free online lectures about Astronomy and Cosmology, covering a wide range of technical levels. I can only imagine how stupid it might make younger learners feel, watching the material then getting asked questions that they can't - Open access to over a million scientific articles in Physics, Mathematics, Quantitative Biology and Computer Science.Ĭool Cosmos - This CalTech based website specializes in Infrared-based Astronomy.

This is super disappointing and really indicates a basic lack of care and attention from whoever is preparing the exercises. So why are we being quizzed on it in lesson 2? From the looks of the syllabus, this information is covered in lesson 4. But at no point does he give any exact chemical definitions for what things like proteins or nucleic acids can or cannot contain. Sal talks in general terms of about biological molecules and functional groups and of the types of elements involved, and gives a few examples.

There's just one problem: Nothing in the videos and articles for this section gives you the information you need to solve these problems. The questions in the exercise for the 'Elements of life' section are all about identifying whether biological molecules are proteins, nucleic acids, carbohydrates or lipids depending on their chemical compositions.

Molecular biology khan academy