Ancient stream on Mars?
Left: Mars. On right: dry stream bed on Earth.
What do you think?
09.26.2012 Rock Outcrops on Mars and Earth This set of images compares the Link outcrop of rocks on Mars (left) with similar rocks seen on Earth (right). The image of Link, obtained by NASA's Curiosity rover, shows rounded gravel fragments, or clasts, up to a couple inches (few centimeters), within the rock outcrop. Erosion of the outcrop results in gravel clasts that fall onto the ground, creating the gravel pile at left. The outcrop characteristics are consistent with a sedimentary conglomerate, or a rock that was formed by the deposition of water and is composed of many smaller rounded rocks cemented together. A typical Earth example of sedimentary conglomerate formed of gravel fragments in a stream is shown on the right.
An annotated version of the image highlights a piece of gravel that is about 0.4 inches (1 centimeter) across. It was selected as an example of coarse size and rounded shape. Rounded grains (of any size) occur by abrasion in sediment transport, by wind or water, when the grains bounce against each other. Gravel fragments are too large to be transported by wind. At this size, scientists know the rounding occurred in water transport in a stream.
Image and Article Credit: NASA/JPL-Caltech/MSSS and PSI
An annotated version of the image highlights a piece of gravel that is about 0.4 inches (1 centimeter) across. It was selected as an example of coarse size and rounded shape. Rounded grains (of any size) occur by abrasion in sediment transport, by wind or water, when the grains bounce against each other. Gravel fragments are too large to be transported by wind. At this size, scientists know the rounding occurred in water transport in a stream.
Image and Article Credit: NASA/JPL-Caltech/MSSS and PSI
So Sad...
As some of you may already know that due to budget cuts that I will not be returning to Wewa next school year. Although I am disappointed, it is part of life. I am mostly sad about not seeing all my fantastic 7th grade students returning as 8th graders next year. Nonetheless, I know you will do your best no matter who the science teacher is. Have a wonderful summer and if I do not move I am sure some of you will see me cycling on 22 or even
Welcome to another school year!
This year I will be doing most of my correspondence using this website, which is for both students and parents. The site is divided into three basic parts, which can be accessed by clicking on the tabs on the top of this page. First there is what we are doing in each grade (7th and 8th) that will show what we are working on, links to the Discovery Education and/or Gizmo website, and when upcoming quizzes, tests will occur, and when any projects and homework is due.
Next is the General Info page, which will list things such as class rules, discipline, supplies, grading rubric, along with my bio. In addition, it will discuss how our "online" Discovery Education techbook works and why it is a better way to tech science instead of obsolete textbooks.
Finally, there is my "blog". What is a "blog"? It is my online journal about what is going on in our classroom listing entries in reverse chronological order For example, I will put this entry in my blog. Furthermore you (students and parents) can leave comments or question for any entry I post. Remember that any entry you post will be seen by other students and parents, so be respectful of that.
I hope with the addition of this site that we all can work together to make this the best year ever!
Next is the General Info page, which will list things such as class rules, discipline, supplies, grading rubric, along with my bio. In addition, it will discuss how our "online" Discovery Education techbook works and why it is a better way to tech science instead of obsolete textbooks.
Finally, there is my "blog". What is a "blog"? It is my online journal about what is going on in our classroom listing entries in reverse chronological order For example, I will put this entry in my blog. Furthermore you (students and parents) can leave comments or question for any entry I post. Remember that any entry you post will be seen by other students and parents, so be respectful of that.
I hope with the addition of this site that we all can work together to make this the best year ever!
School Supplies
Students should have the following for our science class:
- Notebook (spiral or composition) for their journal
- Three ring notebook (to put the returned work and any handouts in)
- Pencil or pen
- Paper
- Notebook (spiral or composition) for their journal
- Three ring notebook (to put the returned work and any handouts in)
- Pencil or pen
- Paper
Links to online techbook
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Links to school and district sites
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Contact info
Students and parents, please e-mail me if you you have any questions you have.
Parents, to make an appointment to see me please contact the main office at:
639-2228. |