Curated Video
GCSE Secondary Maths Age 13-17 - Number: Money - Problem - Explained
SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow steps. This video...
Curated Video
Making Lemonade (Graph, create and complete a table of equivalent ratios)
Devon is making lemonade from a mix. For every 2 tablespoons of lemonade powder, he needs 3 cups of water. What is the ratio of lemonade powder to water?
Curated Video
Hand Grenades: Types and Operation
Hand grenades are small bombs that function like firecrackers. They are filled with gunpowder or explosive filler and a fuse. Hand grenades are activated via a mechanical device rather than requiring a person to light them with a match....
Food Farmer Earth
Fake Versus Real Wasabi
It's an ubiquitous ingredient found in just about every Sushi restaurant in the country: wasabi. But cover your eyes—most of it, is not real wasabi! Find out more on this week's episode of Food Wisdoms: Fake Versus Real Wasabi
Healthcare Triage
A Brief History of Guns in America: Guns and Public Health Part 1
Firearms have a long and unique history in the United States. They're controversial, and they have a huge impact on public health and safety. This month's special Healthcare Triage series will look at firearms as a public health issue in...
Knowledge
Inside Things: Cement
The basic nuts and bolts of how things work is explained simply by exploring the natural world and human made inventions that we come in contact with. Cement is a common construction material. How is this hard, durable substance made?...
Curated Video
Introduction to Quantitative Reagent Tests for Carbohydrates, Lipids, and Proteins
The video is a tutorial on the required practical activities for biology specification that involve the use of quantitative reagents to test for different kinds of carbohydrates, lipids, and proteins. The presenter explains the steps...
Weird History
All About the Powdered Wig Craze
For over a century, European men refused to go outside without first donning an enormous wig. At the time, the headpiece was better known as a peruke or periwig, and just like other bizarre fashion trends, the peruke wig has a...
Weird History
What Early Pioneers Ate To Survive The Old West
Those who trekked across the country to begin new lives in the Wild West were known for their resourcefulness, and it shows in many of the foods they ate. While pioneer cuisine may seem strange to us today, the settlers had no choice but...
Curated Video
KS2 Primary Maths Age 13-17 - Calculations: Word Problems - Explained
SchoolOnline's Primary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 9-13, they cover every key topic and sub topic covered in Maths in clear and easy to follow steps. This video looks at...
Science360
Additive manufacturing: 3-D printing beyond plastic
At Virginia Polytechnic Institute and State University (VT), Christopher Williams heads the effort to further advance 3-D printing--known among engineers as additive manufacturing--with copper, a widely used conductor in electronics....
FuseSchool
Environmental Impacts of Detergents
Learn the basics about the environmental impacts of detergents as part of the environmental chemistry topic.
National Institute of Standards and Technology
Fentanyl Can Sicken First Responders. Here's a Possible Solution
NIST researchers demonstrate techniques for screening illegal drugs for the synthetic opioids like fentanyl that are causing a spike in overdose deaths. More info:...
Curated Video
The Importance and Hazards of Sulfur
This video explains the properties and uses of sulfur, an element that has been known since ancient times. They discuss its yellow crystal and powder forms, its role in the production of sulfuric acid and fertilizers, its use in cleaning...
Bedtime History
The History of Chocolate
Chocolate is not just a delicious treat, but a relic of the ancient Mesoamerican civilizations where it was first developed. Early indigenous groups ground dried cacao beans into powder to mix with water. Some believed chocolate was a...
60 Second Histories
English Civil War: An artillery master
A description of how important science and mathematics were to the artillery in calculating distance and trajectory of a shot together with how much gunpowder is needed.
Science360
Green Gasoline
Like everyone else, George Huber knows money doesn't grow on trees. But, ask him where gasoline comes from and he won't just tell you, he'll show you. To fully understand, Science Nation recently went with Huber to a local lumber yard in...
Visual Learning Systems
Understanding Solutions: Ocean Water vs. Lake Water
In this informative video, we explore the differences between ocean water and lake water. We learn that ocean water is salt water, while lake water is referred to as fresh water. Both of these are examples of solutions, which are types...
Getty Images
Demonstration of iron powder being sprinkled onto paper covering a bar magnet. The magnetic field induces magnetism in each of the particles of iron powder, which then line up in the field. Although the field is actually continuous, interactions between t
Demonstration of iron powder being sprinkled onto paper covering a bar magnet. The magnetic field induces magnetism in each of the particles of iron powder, which then line up in the field. Although the field is actually continuous,...
Getty Images
CU Hands of Himba tribeswoman grinding mixture for body paint, Namibia
CU Hands of Himba tribeswoman grinding mixture for body paint, Namibia
Getty Images
Grains of white powder placed in beaker of water and dissolve, UK (sound available)
Grains of white powder placed in beaker of water and dissolve, UK (sound available)
Sherman Grinberg Film Library
Miners in Nova Scotia extracting salt for war effort during World War II show different kinds of salt from mine
CU miner's hands showing salt crystals / CU salt crystal / CU miner showing thin cake of salt / CU miner's hands showing square salt crystal, thin cake of salt and powdered salt / Note: exact day not known
Hearst Metrotone News
A woman's hand powders a large poodle's nose.
A woman's hand powders a large poodle's nose.
AFP News Agency
CLEAN : India celebrates Holi festival with traditional coloured powders
CLEAN : India celebrates Holi festival with traditional coloured powders