Vinegar and baking soda
Vinegar is an acid. An acid has a pH less than 7. When baking soda is added to vinegar, bubbles are produced and gas is released. Fizzing, bubbling, and change in smell are all evidence of a chemical reaction. The amount of gas produced using baking soda as an indicator tells you the relative concentration ...
Water snails
Water snails have a shell for protection. They have two tentacles, a foot, and a head and a tail region. Water snails have eyes at the base of their sensory stalks. The stalks are used to smell and feel around the snail's environment.
Worm Experiment Week 1
At week 1, evidence of earthworm decomposition is not present.
Worm Experiment Week 4
At week 4, evidence of earthworm decomposition is beginning to show. The earthworm is eating the dead material and releasing smaller forms of matter into the container.
Geography Information
Examine human impact on the land surface of the Earth as well as evidence of natural processes in this key that emphasizes hands-on interpretation of USGS imagery. This quiz introduces students to the concepts of Remote Sensing, and challenges them to think about the human and physical processes at work that are changing the Earth's surface.
Orlando Figes on the Politics of Russian History Historian Orlando Figes speaks with Sasha Weiss about his latest book, The Whisperers: Private Life in Stalin’s Russia; the recent prosecutor’s office raid on the Memorial Society, a human rights organization working to preserve memories and documentary evidence of Stalin’s repression; and the dangers posed by resurgent Stalinism to the accurate telling of Russian history.
Veterinary Respiratory Pathophysiology Ranking the Rocks: Lesson Ranking the Rocks: Activity Changing Communities: Past vs. Future Mystery of the Chicxulub Crater: Animation Shows Liquid Impact Teaching About Evolution and the Nature of Science Test di autovalutazione informatica Chemistry Unit One How to Find the Area of a Triangle How to Find the Area of a Triangle Finding the Area of a Triangle Finding the Area of Rectangles Mountain building in Scotland Snow Falls on Mars
This course covers a wide range of topics, from Defense of the Lungs Against Infection to Acid-Base Regulation Revisited.
This lesson develops the real-world connections and relationships between the rock properties found in Lesson 5 and the important engineering properties for designing and building caverns (or tunnels, mines, building foundations, etc.). The student teams will use importance factors called "desirability points" to mathematically determine the overall best rocks to build caverns within.
This activity develops the real-world connections and relationships between the rock properties found in Lesson 5 and the important engineering properties for designing and building caverns (or tunnels, mines, building foundations, etc.). The student teams will use importance factors called "desirability points" to mathematically determine the overall best rocks to build caverns within.
This lesson plan introduces students to changes that have occurred in western North Carolina, through two hundred years of national and regional development. Students will learn about the geographical, political, and technological issues that have influenced change in mountain communities using oral histories by Madison County residents. They will learn about the history of road building in the North Carolina mountains, and the relatively recent decision to connect two halves of interstate highw
This news article from Space.com reviews older articles on evidence for the impact hypothesis of dinosaur extinction at the end of the Cretaceous. The article contains hyperlinks to older, reviewed articles, digital images of the hypothesized impact and a link where the reader can post their opinion ...
This website offers a free, online version of the National Academy Press' summary of the scientific evidence for evolution. The book has a substantial bibliography and a number of K-12 activities. Users can read the book online, download a PDF version for a minimal price or order the print version.
Test di autovalutazione per conoscenze base di informatica. Il test ha valore promozionale per le attività di META spa nell'ambito della formazione informatica.
The module contains the following levels: Metal Compounds Alcohols Periodic Table and atomic structure Acid base reactions - Group 2 elements Energy Change
There is a teacher explaining that in math, the area of a triangle is the base times the height divided by two. Find the area of a triangle with tips from a math teacher in this video on solving math problems.
In this video learn how the area of a triangle can be determined by multiplying half of the base by the height, as a triangle is essentially half of a quadrilateral shape. Calculate the area of a triangle with instructions from a college-level math teacher in this free video on geometry. Narrator draws examples on a whiteboard with marker.
The instructor uses an electronic chalkboard to demonstrate how to find the area of a triangle. One example is modeled using a step by step approach to find the area when given a height and base length.
In this video learn how to use a formula to find the area of rectangles, including squares. The instructor explains and shows examples of base multiplied by height equals area.
Some of Britain’s most dramatic scenery is to be found in the Scottish Highlands. The sight of mighty Ben Nevis, the desolate plateau of the Cairngorms, or the imposing landscapes of Glen Coe can unleash the call of the wild in all of us. Although these landforms were largely carved by glacial activity that ended some 10,000 years ago, the rocks themselves tell of a much older history. The Highlands are merely eroded stumps of a much higher range of ancient mountains. This unit is an account o
September 30, 2008- NASA's Phoenix Mars Lander has detected snow falling from martian clouds, and its soil testing shows further evidence of the planet's watery past, scientist say. Run time 01:46.
