Mixture Word Problems - Algebra Help
Using information to write an equation and solve a word problem, the instructor uses whiteboard to demonstrate. Students learn to solve "mixture" word problems -- for example, adding two acid solutions together, or adding water to a sugar solution. Students then set up a chart based on the mixture formula, which states that the amount of solution times the percent of acid = amount of acid (or the amount of solution times the percent of sugar = amount of sugar). The chart is then used to set up t
Mixture Word Problem
Writing an equation and finding the amounts of two different antifreeze solutions that must be mixed to obtain the desired antifreeze solution. Suitable for high school students. Instructor uses white board and markers.
Snow Monkeys Play in the Water to Stay Cool
Snow monkeys are native to Japan. Watch these macaques cool off by playing in the water and learn in this video why there are snow monkeys in Texas. Run time 01:12.
Waterproof Gecko is Unsinkable and Can Walk on Water
Two minute video shows geckos in/on the water. Excellent footage. Great for introduction into anmial unit. Perhaps a compare and contast with a lizard. Run time 02:28.
Join Nana as she explains water flow and how flowers drink. She uses a long stem carnation, food coloring, water and glasses to demonstrate how flowers "drink" their nutrients. Nana also addresses the xylem and phloem inside the stem of the flower. The Kids Know It movies bring your student on a fun and interactive journey through the world around us. Run time 06:55
Amusing introduction to hydrogen
An amusing introduction to the properties of hydrogen. Illustrates that hydrogen is lighter than air, with a balloon. A wild-haired professor discusses the element, that it's part of water, and introduces the notion of deuterium. Finally, the hydogen balloon is exploded with some fire. Part of the Periodic Table of Videos series; periodicvideos.com.
Understanding Food - Part 1 - Nutrition by Natalie
Nutrition by Natalie-Understanding What You Eat. In this video Natalie explains what vitamins, minerals and carbohydrates do for your body. It also discusses the importance of water. This video is in a lecture format.
Magic School Bus Gets Energized
Join Ms. Frizzle and the class as they learn more about the different sources of energy. The class plugs their Double-Trouble Wheel of Wonder, the hottest ride at the school carnival, when their electricity fails. No electricity, no ride! Carlos' younger brother Mikey helps them discover that there are other sources of energy besides electricity. Using wind, water, the heat of the sun, falling rocks, and their own muscle power, the class gets the Ferris wheel running. Run time 22 minutes.
What Causes Waves?
The major cause of waves, specifically ocean waves, is wind,
although waves can also be created by tides and earthquakes. Learn
how waves are simply the result of winds passing over water.
Solar Energy Concentrator
This video demonstrates how solar energy can be focused with a curved mirror. Once focused this energy can be used to cook food, sterilize water even create electricity. Includes an explanation of energy, power, joules, and watts. Examples of radiant, heat, chemical and kinetic energy are given.
Includes links to directions for constructing a simple solar concentrator.
Using Cloud-Seeding (Geo-Engineering) to Solve Global Warming
This clip from the "Five Ways to Save the World" details a cheap, simple, and low-risk way to compensate for global warming.
If the reflectivity of clouds could be increased slightly, sufficient sunlight would be reflected to compensate for any future release of CO2 into the atmosphere. (09:37)
How Nuclear Energy Is Produced
A nuclear reactor creates energy by producing heat that, in
turn, heats water and produces steam to drive turbines and rotate
electrical generators. Find out how nuclear energy is used to bring
electricity to homes with information from a science teacher in this
Light and the Law of Reflection
In this video segment adapted from Shedding Light on Science, learn about the reflection of light. Ball bearings are used to represent photons and illustrate the reflective property of light. A beam of light traveling through a water table demonstrates how two different surfaces—a mirror and a paper card—reflect light. Although light always follows the law of reflection, see how the seemingly smooth paper is actually rough and affects the way the light is reflected. Ray diagrams and a demons
The Little Frog The video shows the story of 2 little frogs that get trapped in a hole. The rest of the group tells them to wait until the hole is filled with water but one of them keeps jumping until he can go out. The little frog thought he was being encouraged and that helped him succeed.
The video shows the story of 2 little frogs that get trapped in a hole. The rest of the group tells them to wait until the hole is filled with water but one of them keeps jumping until he can go out. The little frog thought he was being encouraged and that helped him succeed.
Elephants shower Toot, a pink piglet, with water. Simple color animation with music, voices. Site includes tabs to more information on "Characters" and "Learning Goals." (0:46)
Meteorologist Explains How Rain Forms
In this edition of "Ask Dirk," KCRA 3 WeatherPlus Meteorologist Dirk Verdoorn explains how rain forms. A 'water cycle' experiment is set up with a tea kettle and a metal plate. The viewer can see that evaporation changes to condensation, then changes to rainfall with this simple experiment. The video is slightly blurry. (04:06)
Weather & Meteorology : What Is Humidity?
Humidity is a measure of moisture in the air, specifically that of water vapor, which is water in its gaseous state. Find out how to measure absolute humidity and how to determine the ratio of dry air to water vapor with help from a meteorologist. Video is short and good quality and is appropriate for elementary level students of grades three through five.
Spoutin' Fountain Demo
This is a fun demonstration with explanations about steam, water vapor, condensation and air pressure. You will need a flask, water, stopper, tubing, and bunsen burner. For more information, go to www.montanascience.org and select LESSON PLANS. Run time 02:45
HOW 2 CLEAN KEYBOARD - 6 EASY STEPS
WHAT YOU'LL NEED:
lint free cloth
can of compressed air or vacuum cleaner
flat tip screwdriver
pinch of water OR 1 part water - 1 part alcohol (denatured)*
#1 Shutdown, unplug computer & keyboard.
#2 Using the screwdriver, gently remove keys (don't forget to make note of their position - better yet take a photo & print out beforehand) if you have more than one keyboard, use that as your guide, as I did.
Forests in Flux
Science examines the future of the world's forests against a backdrop of climate change and intensifying human activity. This video presentation discusses some of the challenges of global forest governance. (08:54)