: Applying Darker Colors with Watercolor Paint
You can lay in more color over top of a light color if the paint is wet to the touch. Lay the color wet into wet-wjoch means put wet water color onto wet water color.
Watercolor Painting Wet Technique
How to use the wet technique for beginners in watercolor painting by Larry Dubitsky. Take water-wet an area until it is really wet, you can take some color and add it to this area-it creates a softness. (1;07)
Covalent Bonding Models using Balloons
Covalent bonding can be modelled using baloon. Modeled here hydrogen fluoride (three white and one red balloon), water, ammonia, methane, and carbon dioxyde. The video shows each model listed above made out of red and white balloons, labeled, and explained through narration. Run time 01:37.
Learn about Density
Can you float a bowling ball? Crazy Chris explains about the basics of density by floating a bowling ball in a container of water. Density is how much the ball weighs compared to how much water it takes up. Run time 03:22.
Temperature vs. Heat
Eureka! explains that heat refers to quantity of hotness, and is determined by the mass and speed of molecules. This program demonstrates that a bucket of water at a temperature of 50 degress Celsius contains more heat than a cup of water at 100 degrees Celsius. Video is good quality and has good information for students of any level.
Temperature and Molecule Demonstration
Join Nanna KnowItAll in her Mad Lab as she explores how temperature effects water molecules. Nanna uses a large jar, small jar, warm and cold water, food coloring, and ice cubes in her demonstration. Run time 07:28
The Chemistry of the Earth Geographic distribution of specific resources determines global economics. The program highlights how specific deposits of resources came to be located in specific places. Rare resources inspire the search for alternatives in industry. Silicon, a cornerstone of the high-tech industry, is one of the elements of the Earth highlighted in this program.
States of Matter
Demonstration of the solid, liquid, and gaseous states of water. Uses simple science demonstrations and humor to illustrate the three states of matter. Run time 06:00.
Reaction to New Immigration- late 1800s
This video is accompanied by text. "The influx of millions of new immigrants into America’s cities had a powerful effect on city governments. At the time, state and federal governments did little to help immigrants adjust to their new lives in America, leaving city governments burdened with the enormous task. Due to the rapid rate of urban growth, cities could scarcely keep up with city dwellers' needs for transit, water, sewers, street cleaning, and fire and police protection. This lack of go
Watercolor Painting for Beginners : How to Paint Watercolor Vase
Dirty wet water was used to draw a vase. Adding more colors to the vase makes the colors react. Flatten the brush to take the colors off the canvas. English captions. (1:02)
How to Paint a Rose With Watercolors : Supplies for Painting a Rose With Watercolors
Cobalt blue, permanent red, and lemon yellow tube paint is useful for painting roses with watercolors. You need a spray bottle to spray the colors and a palate. You need a round water color brush. English captions. (1:28)
Wonders of the Natural World - Victoria Falls This video looks at Victoria Falls and gives information about the falls. Video discusses where the falls are located, how high and wide the falls are, how it was named, and where the falls fall into, and how much water goes over the falls edges. Video is of good quality, it is a short video and narrator talks fast. (0:55)
Sign Language Lessons: Common Phrases : Food & Beverages in Sign Language
Learn how to sign eat, water, milk, banana, apple, and cookie with American Sign Language (ASL) tips in this free online sign language video tutorial clip.
Centripetal Force: the Roller Coaster
What can we learn about physics from an amusement park ride? This videosegment, produced for Teachers' Domain, uses roller coaster footage to demonstrate that what really keeps people pinned to their seats as a roller coaster hurtles through a loop isn't just the seat belts, it's centripetal force. To reinforce this important scientific principle,a physics teacher successfully swings a cup of water around his head without spilling a drop. Run time 04:40.
The Kidney and Nephron
This is an overview of how the nephrons in the kidney filter blood and re-absorb water and other molecules. Mr. Khan uses computer software (with different colors for clarification and emphasis) to illustrate his points. Sal Khan is the recipient of the 2009 Microsoft Tech Award in Education.
Anatomy of a Kidney
There is a very brief video with still images of the kidney. This is a quote from the video:
"This cross section of a kidney, almost three times life-size, shows its blood supply and one of the filter tubules, a nephron, highly magnified. The nephron is a highly specialized coiled tubule measuring up to one inch in length. There are more than one million nephrons in each kidney. They function as the kidney's filter units. The kidneys filter unwanted materials from the blood and regulate th
Learn How the Kidneys Work
How do our kidneys filter our blood stream? This video deomonstrates and explains how our kidneys work by making a model using a water bottle, fish tank tubing, funnel, coffee filters, food coloring and water. Run time 03:52.
That Catholic Show - Water, Water Everywhere
Episode 7 - Holy Water, Baptismal Water, Water in Scripture, Water in our Lives. But what does Water have to do with Catholicism? Watch That Catholic Show to find out!
The Great Stink - History of sewage - Thames River Water
Thames Water commissioned this short film mark the 150th anniversary of The Great Stink. In the hot summer of 1858, the stench of sewage in the River Thames so offended MPs that Parliament was suspended and the Government agreed to "take immediate measures for abating the dangerous nuisance caused by the noxious state of the Thames". A leading Victorian engineer, Sir Joseph Bazalgette, was commissioned to design and build a system of sewers which would remove the sewage from the Thames, sending
Hoover Dam and Hydroelectric Power Plant Tour Part 1
This video is a series of video clips taken when visiting the Hoover Dam and Hydroelectric Power Plant back on December 28, 2008. Hoover Dam is located at Lake Mead at the Arizona and Nevada State line and just East of Las Vegas on US Highway 93. The highway goes over the dam, but a by pass bridge is being built across the Colorado River just down stream from the dam due to be completed in September of 2009. Video part 1 mainly shows the outside area of the dam as viewed from the visit
