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...
National Parks Service
Acadia National Park - Floating Classroom: Dissolved Oxygen
These videos compliment the variety of water quality programs that occur in Acadia National Park. For teachers looking for good background information on water quality or those looking to attend the Floating Classroom field trip, this...
Curated Video
Transport of Substances in and out of Cells: Diffusion, Osmosis, and Active Transport
In this video, the concept of transport of substances into and out of cells is explained. The different ways in which this process occurs are discussed, including diffusion, osmosis, and active transport. The importance of surface area...
Encyclopaedia Britannica
BRITANNICA WIRE: Oceanic dissolved oxygen levels declining worldwide | Encyclopaedia Britannica
Ocean Dissolved Oxygen (O2) levels—which measure of how much oxygen is dissolved in ocean water—have been dropping at an alarming rate in every ocean around the globe. #BritannicaWire ~~~ Encyclopaedia Britannica Inspiring curiosity and...
FuseSchool
Haber Process - environmental and social considerations
Haber Process - environmental and social considerations | Chemistry | FuseSchool
Professor Dave Explains
The Aquatic Environment: Marine and Freshwater
Water covers 70% of the surface of the Earth, and serves as home to an incredible variety of living organisms. Most of that water is salty, or marine, while some is freshwater, and it is in constant motion through the hydrologic cycle....
SciShow
The Sensor That Dissolves in Your Brain
In this week's SciShow News, we discuss two new types of sensors being developed. One tracks the content of certain molecules in your sweat while you exercise and the other is a brain implant that can be resorbed once it has finished its...
Crash Course
Water and Solutions -- for Dirty Laundry: Crash Course Chemistry
Dihydrogen monoxide (better know as water) is the key to nearly everything. It falls from the sky, makes up 60% of our bodies, and just about every chemical process related to life takes place with it or in it. Without it, none of the...
Curated Video
Water Treatment: Making Water Safe for Human Consumption
This video presents a lecture on water treatment, specifically on the processes involved in making water extracted from lakes and rivers fit for human consumption. The speaker discusses the different compounds and elements that might be...
Science360
What does an environmental engineer do? - Careers in Science and Engineering
What's it really like to be an engineer or a scientist? What do they really do all day? You're about to find out! Meet the next generation of engineers and scientists in these profiles of young professionals, who may just inspire you to...
msvgo
Oxygen and Carbon Dioxide
It explains that air is present in water and soil. It also talks about the interdependence of plants and animals for oxygen and carbon dioxide.
Professor Dave Explains
Temperature and Gas Solubility
We know about solutions and solubility, but we have typically examined solid or liquid solutes dissolved in a liquid solvent. Did you know that gases can also be dissolved in liquids? Their solubilities depend heavily on temperature, so...
Curated Video
Why Is Carbon Dioxide Mixed In Cold Drinks And Beverages?
One of the most important factors when it comes to mixing any gas with a liquid is solubility, and carbon dioxide is highly soluble in water. In fact, it's the most soluble of the common, non-toxic gases with high solubility. To give you...
Science ABC
Why Is Carbon Dioxide Mixed In Cold Drinks And Beverages?
One of the most important factors when it comes to mixing any gas with a liquid is solubility, and carbon dioxide is highly soluble in water. In fact, it's the most soluble of the common, non-toxic gases with high solubility. To give you...
Curated Video
Electrolysis of Ionic Compounds: Molten and Aqueous Solutions
In this video, the process of electrolysis is discussed, which involves the splitting of an ionic compound into its constituent elements by passing an electric current through it. The video explains how electrolysis works for molten lead...
Curated Video
GCSE Biology - Gas Exchange and Lungs #26
Learn how the lungs and alveoli are adapted to carry out gas exchange.
Wonderscape
Exploring Water: Oceans, Seas, and More
Dive into the world of water, from the vast oceans that cover 71% of Earth's surface to the unique seas like the Mediterranean and the Dead Sea. Learn about the role of water as the "universal solvent" and the mysteries hidden in the...
Curated Video
Capillary Action
Water is added to dry and bent matchsticks to let us see capillary action at work. The wood absorbs the water causing the matchsticks to straighten. Biology - Plants - Learning Points. Water is a polar molecule because the electrons are...
FuseSchool
The Haber Process & Its Environmental Implications
Learn the basics about the Haber Process and its environmental implications.
Curated Video
Introduction to Fish Farming
The video is a lecture presentation on fish farming. It discusses why fish is a good source of protein and nutrients for humans and other animals, as well as how fish farming helps conserve wild fish stocks. The video also talks about...
Schooling Online
Chemistry Properties and Structure of Matter: Properties of Matter - Homogeneous and Heterogeneous Mixtures
Life is tough for thirsty pirates – the sea is filled with water that can’t be drunk! Thankfully, Blackbeard has figured out a trick. This lesson will compare heterogeneous and homogeneous mixtures. We’ll also look at solutions, which...
Crash Course
Solutions: Crash Course Chemistry
This week, Hank elaborates on why Fugu can kill you by illustrating the ideas of solutions and discussing molarity, molality, and mass percent. Also, why polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar...
MinuteEarth
How to Make a Seashell - Just Add Water
Why do shell building living creatures live near the surface of the ocean? Learn how chemistry creates a dissolving depth for calcium and determines where shell builders can live.
MinutePhysics
Will Batteries Power The World? | The Limits Of Lithium-ion
Can Batteries Power Everything? This video is about the physical and chemical limitations to electrolytic batteries, and how we might surpass the energy density and specific energy of lithium-ion batteries (like the Panasonic 18650...