Can you assemble the Plate Tectonics puzzle?
|When first learning about plate tectonics, our Puzzling Plates app provides an excellent introduction to Earth’s tectonic plates with a jigsaw-like puzzle game that introduces the location and names of the major plates. The entire app is scored, making it fun and challenging.|
|For a comprehensive introduction to plate tectonics, consider our Theory of Plate Tectonics program for Macintosh and Windows.|
Determine your weight on different planets
|One’s mass does not change on planets with different gravity, however the weight will appear to change because of the different pull of gravity. Denser planets have a stronger pull of gravity, therefore weight increases. Less dense planets have a weaker pull of gravity so the weight decreases. For example on Mercury, 100 pounds on Earth would appear to only be 38 pounds.|
|This activity is one of several in our Explore the Planets CD-ROM. This activity helps students understand the difference between weight and mass by calculating their weight on other planetary bodies.|
Figure the length of the day in summer and winter where you live
|Because of the tilt of the Earth’s axis of rotation, the amount of sunlight striking the surface varies throughout the year. The tilt is independent of the Earth’s location within its orbit around the Sun. The axis of rotation always points in the same direction.|
At the summer solstice in the Northern Hemisphere, more than half of the Northern Hemisphere is on the lighted side of the circle of illumination. As a result, days are longer in than in the Southern Hemisphere. At this same time, the Southern Hemisphere experiences the winter solstice.
Our Earth’s Atmosphere and Its Seasons program goes into great detail about the relationship between the Earth and our Sun and the consequences of that relationship which produces the weather and climate here on Earth.
Use various tests to identify mineral samples
By understanding the physical properties of minerals, it is possible to determine which mineral or minerals are present in an unknown sample. Physical properties include: color, luster, hardness, and “streak.”
We have several products that explore the properties of minerals including our new app How to Identify Minerals for iPad, Macintosh, and Windows. Select your platform from the links in the page header to see all of our programs.
Construct a profile from a topographic map
|Understanding how to use topographic maps is an essential skill for any geologist. It is also quite important for anyone hiking or camping in the wilderness. To learn about these important maps and how to use them, you will want to consider our Introduction to Topographic Maps program. This program is a great tool for students competing in the Science Olympiad competition.|