A Boy Ate Only Chips And French Fries For 10 Years. This Is What Happened To His Eyes.

A Boy Ate Only Potato Chips & French Fries for 10 Years. This Is What Happened To His Eyes. DA is a 17 year old boy, presenting to the emergency room with a progressive deterioration in hearing, sight, and vitality. He tells the admitting nurse that his field of vision had been slowly going dark […]

How to Speak Chemistrian: Crash Course Chemistry #11

Imagine you wake up one morning, and you’re under a tree, and you don’t recognize anything. You’re surrounded by low, grassy hills. It’s raining a bit and smells like waffles and potatoes. As you rub the sleep from your eyes, you notice a woman, and she’s like “Qu’est-ce que tu fais dans la pluie?” and […]

Did Comets Kickstart Life on Earth? — Speaking of Chemistry

Our ancestors thought comets were harbingers of disaster—signs of imminent war, plagues, death, you name it. In reality, comet impacts on primordial Earth may have been the opposite of a death blow: Comets may have delivered molecules that helped seed life on our planet. Comets aren’t exactly the most attractive celestial objects in the universe—many […]

Photosynthesis: Crash Course Biology #8

Photosynthesis! It is not some kind of abstract scientific thing. You would be dead without plants and their magical- nay, SCIENTIFIC ability to convert sunlight, carbon dioxide and water into glucose and pure, delicious oxygen. This happens exclusively through photosynthesis, a process that was developed 450 million years ago and actually rather sucks. It’s complicated, […]

AQA Chemistry Paper 2 – 2018 Predictions

– [Jennifer] Hey guys, these are your AQA Chemistry Paper Two predictions. Now you have to remember that I am not an examiner. I do not know exactly what is going to come up on the exam. I’m just a teacher that’s spends a lot of time doing a lot of research, and this is […]

The 5 Most Important Molecules in Your Body

Your body has all sorts of complicated processes going on inside it and a lot and a lot of these processes are carried on by incredibly powerful and often incredibly large molecules. Some of these molecules that you’re using right now are so big that they challenge the definition of what a molecule is. Technically […]

6 O Chem Thin Layer Chromatography (CC)

[ Music ]>>Today we’re going to talk about thin layer chromatography. I’ll show you how to set that up. Before we do I’ll do a little rap on what is chromatography. Thin layer chromatography is one form of solid liquid chromatography. It’s used to — for the rapid separation of very small amounts of organic […]

Dimensional Analysis Unit Conversions on the MCAT

Leah here from leah4sci.com and in this video we’re going to look at a simple approach for dimensional analysis or unit conversions so that if you’re doing Math on the MCAT you can quickly and easily know exactly what to convert and of course you can apply this to your Chemistry and Physics classes as […]

The whole of EDEXCEL Chemistry Paper 2 or C2 in only 47 minutes. 9-1 GCSE Science Revision

– Hello lovely kittens in this video I cover everything you need for your second LXL chemistry exam, I’m gonna go over a summary of everything, But if you want to make sure you don’t miss anything you want loads and loads of quickfire questions, all the bits you need to learn for chemistry, all […]

pH and Buffers

Hi. It’s Mr. Andersen and this is chemistry essentials video 69. It’s on pH and buffers. The proteins in our blood have a problem. They have to have a specific pH. And if it changes radically out of this range between 7.35 and 7.45, they start to denature and they can’t do the job that […]