Catalyst University
Type I Alveolar Cells, Respiratory Membranes, & Gas Exchange
In this video, we discuss how gas exchange occurs across the respiratory membrane at the alveoli and how this involves Type I Alveolar Cells.
Curated Video
Introduction to Moles and Conversion of Grams to Moles
This video is on moles and how to convert between grams and moles. The speaker explains what a mole is, its significance in measuring chemical amounts, and the use of Avogadro's constant in determining the number of atoms or molecules in...
Journey to the Microcosmos
Life Without Oxygen Challenge Accepted
Slimy, a little smelly, maybe even a little gross, but to many organisms, the oxic-anoxic transition is a shifting chemical boundary that has created a challenge for life...a challenge it conquered.
Science360
Dead Zones in the Ocean - Science Nation
Ocean "dead zones" along the Washington and Oregon coasts are threatening critical U.S. fishing areas. These oxygen-depleted regions, that lose virtually all of their marine life in the summer, are expanding, and new ones are appearing...
Curated Video
Benefits and Styles of High Intensity Interval Training
In this video, the benefits of high intensity interval training (HIIT) are discussed. The speaker highlights several advantages of incorporating HIIT into a fitness routine. The video also compares three leading interval training...
Astrum
How would we build a colony on Mars?
Mars is a world similar in a lot of ways to our own. That doesn't mean there aren't a multitude of hurdles to overcome if we were ever to consider settling there.
EarthEcho International
How to Measure Dissolved Oxygen
ENGAGE: Join Ashlan Gorse Cousteau and students from Earth Force in Alexandria, VA as they measure dissolved oxygen at Four Mile Run Creek. Learn how to use PASCO instruments to record quantitative results for DO as a measure of water...
Curated Video
The Water Cycle: Understanding how water is recycled and used over and over again
This is a lecture presentation on the water cycle, which explains how water is constantly recycled and used over and over again. The presenter first discusses the importance of recycling elements and compounds in general because the...
National Parks Service
Yellowstone National Park - Water Quality
Distance learning video about water quality.
FuseSchool
Law Of Constant Composition
Learn the basics about the law of constant composition and how to apply it. The law of constant composition states that in a given chemical compound, all samples are made up of the same elements combined in the same proportions. So what...
Catalyst University
What is Mean Arterial Pressure? | MAP Explanation & Calculations
In this video, I explain what is mean arterial pressure [MAP]. I then do three example calculations and explain the clinical significance.
msvgo
Atmospheric pollution
This nugget explains pollution of the layers surrounding the earth, air pollutants, global warming and green house effect, acid rain, ozone hole, photochemical smog.
Curated Video
Photosynthesis: The Process of Creating Energy in Plants and Algae
This video explains the process of photosynthesis, which is how plants and algae make their own energy. The video describes the photosynthesis reaction, including the reactants (carbon dioxide and water) and products (glucose and oxygen)...
Curated Video
Understanding Atmospheric Pollution: Causes, Effects, and Solutions
The video discusses atmospheric pollution and the effects of burning fossil fuels. It explains the pollutants created through combustion, such as carbon dioxide, particulates, carbon monoxide, sulfur dioxide, and nitrogen oxides. The...
Catalyst University
Mixture of Reduction Practice Problems in OCHEM
Mixture of Reduction Practice Problems in OCHEM
Learning Mole
Why is Seawater Blue?
A series aimed at Primary School students learning all about the Ocean and its inhabitants in their science classes. This video in particular will take students through the reasons why seawater looks so blue.
msvgo
Water
This explains structure and properties of water including hardness of water and methods of removing the hardness.
Curated Video
Methods of Extracting Metals from Their Oxides
This video explains different chemical reactions used for extracting metals from their oxides. The video starts with the simple method of reduction with carbon for metals such as iron, where the metal oxide is reduced, and carbon is...
Curated Video
The Science Behind the Body's Response to Exercise
This video explains how the human body responds to exercise and the increased demand for energy that comes with it. The role of cellular respiration, glucose, and oxygen in supplying energy to the muscles is explained. The video also...