Professor Dave Explains
Subphylum Hexapoda Part 1: Insect Form and Function
We are moving through phylum Arthropoda, and we have just one subphylum left to go, Hexapoda. This one is huge, containing all the insects in the world. What can we say about the general form and function of the hexapods?
Curated Video
Haber’s process
Describes the application of equilibrium principles in the industrial synthesis of ammonia.
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Gases in Liquids - Henrys Law
Discusses how gas solubility in liquids depends on pressure, governed by Henry's Law
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Chemical Reactions - Irreversible & Precipitation Reactions
Explains irreversible reactions that proceed to completion and precipitation reactions where insoluble solids form from solutions
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Passive transport: diffusion and osmosis
Passive transport is a naturally occurring phenomenon that allows us to keep things balanced in our cells. Simple diffusion, facilitated diffusion and osmosis are known types of passive transport.
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The Incredible Role of Plants and Alveoli in Sustaining Life
This video highlights the amazing capabilities of plants and the importance of photosynthesis in sustaining life on Earth. It also explains the process of human respiration, detailing the intricate structure of the lungs and the role of...
Curated Video
There are only TWO things that ALL combustion reactions have in common...
Combustion chemical reactions are reactions that burn a fuel. The fuel that is burned is a hydrocarbon and we all know that oxygen is needed for something to burn. So all combustion reactions will have the reactants of a hydrocarbon and...
Curated Video
What is a monosaccharide
Monosaccharides are the simplest forms of carbohydrates. Their classification, structure and examples are going to be discussed in this video.
Curated Video
Landmarks - Antarctica
ANTARCTICA ANTARTICA IS A STOREHOUSE OF EARTH HISTORY AND CONTAINS MANY CLUES ABOUT ITS POSSIBLE FUTURE. STUDYING SECTIONS OF ICE CORE GOING BACK 800,000 YEARS, SCIENTISTS AT THE BRITISH ANTARCTIC SURVEY HAVE COME TO SOME STARK...
Curated Video
Arctic Climate Change: Impacts and Urgent Call for Action
This video highlights the alarming effects of global warming on the Spellbard region of the Norwegian Arctic. It discusses the rapid changes occurring due to excessive carbon dioxide emissions, including the potential extinction of polar...
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Global Warming and Climate Change: Urgent Action Needed for a Sustainable Future
This video highlights the alarming effects of global warming, specifically focusing on the breaking up of ice shelves in the Antarctic and the destruction of forests. It emphasizes the urgent need for accessible information and a...
Curated Video
What Will Earth Look Like When These 6 Tipping Points Hit?
A “tipping point” is when a system, with just a small amount of additional energy, is pushed from one stable state to another suddenly and dramatically. This can be a chair falling backwards. Or it can be a major earth system collapsing....
Curated Video
Geoengineering: The Riskiest Way to Save the Planet
How do we reduce the impact of climate change, and could geoengineering be the solution? Host Sinead Bovell is joined by sci-fi writer Kim Stanley Robinson and other experts to examine the goal of Global Net Zero Emissions, direct air...
Curated Video
Earth’s Climate Has Always Changed. Why All the Fuss?
If you take a look at global temperature graphs that span millions or billions of years, you can see that our planet’s temperature has made wild swings. In fact, the Earth used to be completely covered in snow and ice! So, what’s the big...
Astrum
The Beguiling Opportunity That Appears Twice in a Lifetime: Halley Armada
The Halley Armada, Giotto, Vega 1 and 2, Suisei and Sakigake, all visited Halley's Comet at roughly the same time in 1986. What did they discover? Why was this such a groundbreaking mission?
Curated Video
Photosynthesis Experiment
Follow along and learn about the process of photosynthesis in plants. Then do a simple experiment to demonstrate the process.
0:00 – Introduction
0:07 – What you need
0:17 – Explanation
1:16 – Safety
1:23 – Experiment
2:09 – Results
...
Curated Video
Fun With Dry Ice!!!
Watch what happens when Dr. Boyd unexpectedly gets his hands on some dry ice!
Minute 0:30 – Explanation
Minute 3:04 – Demo 1: Dry Ice In Water
Minute 4:05 – Demo 2: The Vibrating Quarter
Minute 4:51 – Demo 3: Floating Bubbles...
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Trapping Carbon Dioxide
n a variation of the common 'Volcano Baking Soda' demonstration, Dr. Boyd traps carbon dioxide gas in a balloon.
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Color Changing Celery
Learn about plants, and see how you can change their color!
Minute 0:30 – Introduction
Minute 0:43 – What you need
Minute 1:06 – Explanation & description of plants and their function
Minute 2:24 – Experimental plan
Minute 3:03 –...
Curated Video
Dancing Raisins
Did you know raisins can ‘dance?’ Find out how with these scientific demonstrations.
0:00 – Introduction
0:17 – What you’ll need
0:36 – The science behind soda pop
1:26 – Experimental explanation
2:09 – Safety discussion
2:56 –...
Veritasium
Why Trees Are Out to Get You
These videos are from 2012 so my interest in trees goes back a long ways. I think these videos discuss two of the most interesting and amazing facts about our leafy friends: they are made mostly of CO2 (which comes from us breathing out...
Curated Video
Lewis Structures in Action: CO₂ and NO₂ Examples
In this topic, we explore how to draw and interpret the Lewis structures of carbon dioxide (CO₂) and nitrogen dioxide (NO₂), two important molecules in chemistry. CO₂ features a linear structure with double bonds between carbon and...
Science ABC
Respiratory System: From Inspiration to Expiration Explained in Simple Words
The respiratory system is composed of the nose or nasal cavity, the pharynx, the larynx, the trachea, the bronchi, and the lungs. The respiratory system's functions are gaseous exchange, inhaling oxygen and exhaling out carbon dioxide,...