 | Build a model to demonstrate how earthquakes are caused
The apparatus consists of a heavy object that is dragged steadily with an elastic cord. Although pulled with a constant velocity, the heavy object repeatedly slides and then stops. A small vibration sensor, attached to a computer display, graphically monitors this intermittent motion. |
| | Difficulty: High school |
| Compare the porosity of different types of soil
Soils are made of particles of different types and sizes. The space between particles is called pore space. Pore space determines the amount of water that a given volume of soil can hold. Porosity is the percentage of the total volume of soil that consists of pore space. This is an important measurement in areas where drinking water is provided by groundwater reserves |
| | Difficulty: Elementary school |
| Demonstrate how erosion happens in different ways
No matter where you look, the land you see is a
battleground. On one side of the battle are the forces beneath
the surface. These forces cause the crust to be faulted, folded,
tilted, and lifted. On the other side of the battle are the
natural processes of weathering and erosion. Once rock has been
broken up by weathering the small pieces can be moved by water,
ice, wind, or gravity. Ev |
| | Difficulty: Elementary school |
| Demonstrate how lava flows when a volcano erupts
This model is easy to demonstrate and very useful in relating hazards associated with lava flows (or mud flows). However, this model costs more and requires you to order a plastic three-dimensional map. |
| | Difficulty: Middle school |
| Demonstrate how volcano's erupt using an air-pressure model
You may wish to do this demonstration outside. This apparatus will use air pressure to propel tephra (sand) into the air. A fan disperses the tephra downwind where it accumulates to form a cinder cone. Visibility of the tephra is enhanced if a white sheet or cardboard is used as a backdrop and drop cloth. |
| | Difficulty: High school |
| How soil management affect soil quality?
Soil is one of our most precious natural resources, as it integrates all parts of the ecosystem. It provides a medium for plant growth so that we can have food, clothing, and other materials. Soil filters water, decomposes waste, stores heat, and exchanges gases. Soil is alive- it is the home to billions of micro- and macroscopic organisms. It is a material used for construction, medicine, and art |
| | Difficulty: High school |
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| How to make your own fossil
Though scientists have found many, many fossils, they are not all that common. It takes very special conditions for fossils to form. Here's how you can make a modern day fossil. |
| | Difficulty: Elementary school |
| What causes a tsunami? Demonstrate this with a model
A Tsunami (Japanese for 'harbour wave') is a wave generated by an undersea earthquake,landslip or volcanic eruption so if you want to demonstrate what causes a tsunami rarher than it effect that it may have then we have to think about simulating an undersea earthquake. |
| | Difficulty: Elementary school |
| What causes landslides?
A landslide inventory of the Touchet subbasin of the Walla Walla River Watershed was completed in 2002 by the WDNR. Using a combination of 1:24,000 scale orthophotos from 1996 and aerial photographs, nearly 250 possible landslides were located in the total 93 km2 (234 were accessed by road or trail; gates, road closures, or other obstacles prevented ground-truthing of the remaining 15 or so). The |
| | Difficulty: High school |
| | | Difficulty: Elementary school |
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Science kits, science lessons, science toys, maths toys, hobby kits,
science games and books - these are some of many products that can
help give your kid an edge in their science fair projects, and develop
a tremendous interest in the study of science. When shopping for
a science kit or other supplies, make sure that you carefully review
the features and quality of the products. Compare prices by going
to several online stores. Read product reviews online or refer to
magazines.
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