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Tuesday, 8 September 2009
Water on, in, and above the Earth - USGS Water Science for Schools
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As the saying goes ... "water, water, everywhere." Well, how much water is there; where is this water; how does it move around? Use the diagram below to find out (select "Menu of all Earth's Water topics" to see a more complete list).
As the saying goes ... "water, water, everywhere." Well, how much water is there; where is this water; how does it move around? Use the diagram below to find out (select "Menu of all Earth's Water topics" to see a more complete list).
Light and Optics: online meteorology guide
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Mechanisms Particle/Molecule-light interactions responsible for creating optical effects. These interactions include: reflection, scattering, refraction and diffraction.
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Friday, 4 September 2009
Wednesday, 2 September 2009
The Showdowbox Theater
When
the sun shines, shadows can be seen on the ground or on a wall,
creating an outline of any object blocking the light. Shadows are so
common that you probably do not pay much attention to them. However,
there is much to discover if you observe shadows and experiment with
making your own. A fun way to learn about shadows is by using a
shadowbox theatre and shadow puppets.
Click Here
the sun shines, shadows can be seen on the ground or on a wall,
creating an outline of any object blocking the light. Shadows are so
common that you probably do not pay much attention to them. However,
there is much to discover if you observe shadows and experiment with
making your own. A fun way to learn about shadows is by using a
shadowbox theatre and shadow puppets.
Click Here
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