EXPLORING GEOMETRY IN THE UNIVERSE

Grade: 9th

Teacher: JT Blue

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Directions• Read the information on each page first, next…• Click on the helpers at the bottom right of the screen on each page• Some helpers have multiple clicks. Click until text/images stop• Click on other shapes on the page when presented to you• Keep the goal in mind as you take this tour• Lastly, look for these terms throughout the tour Ellipse- a closed conic section shaped like a flattened circle and formed by an inclined plane that does not cut the base of the cone Oblate- flattened at the poles, as a spheroid generated by the revolution of an ellipse about its shorter axis Spheroid- a solid geometrical figure similar in shape to a sphere, as an ellipsoid Hyperbola- a conic section formed by a plane that cuts both bases of a cone Point- a part of a line that is bounded by two distinct end points, and contains every point on the line between its end points• Follow the tabs and enjoy your trip!

Goal:To explore the connection of geometry to aspects of the

universe

ClickHereAfter Reading

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Note the background of this page. It is an elliptical inclusion of the known universe which includes, galaxies, our solar system, the Earth, and us! It is theorized to have three shapes…

Spherical Space

Hyperbolic Space

Flat Space

Info on the Shape of the

Universe

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Milky WayThere are a vast of amount of mesmerizing, beautiful, and amazing galaxies within our universe. . . that we know of. They fit within a few categories.Note the elliptical shapes.Click on the helper Sombrero

GalaxyHoag’s Object

Galaxy

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Earth

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Tour the Solar

System Here!

Note the elliptical shapes, orbits, and spherical planets in the solar system

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Shape of the Earth

Shape of Earth’s

Magnetic Field

Welcome home!Our planet has a spherical shape, when including the atmospheres. If you take those away you actually get an oblate spheroid.

Invisible to the eye are magnetic fields that originate at the Earth’s poles. These fields help with navigation along with many other aspects of life. Note the ellipses and overlapping spheres on the link.

Also, Here is a magnet activity.I’m sure you’ll be “attracted” to it.

Click Here

References• http://

study.com/academy/lesson/shape-of-the-earth-density-stress-gravity.html

• http://image.gsfc.nasa.gov/poetry/tour/AAmag.html• http://www.solarsystemscope.com/• http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question35.html• http://dictionary.reference.com/browse/definitions• https://www.youtube.com/watch?v=V-M07N4a6-Y• Images taken from google images

• HSG-GMD.B.4-Visualize relationships between two-dimensional and three –dimensional objects

• HSG-MG.A.1-A.3-Apply geometric concepts in modeling situations