Category Archives: HFHS Science

Our Giant Clock of a Planet

  By HFHS | August 31, 2012 - 2:52 pm |
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The second chapter of my book, “Privileged Planet” was all about data recorded inside of the Earth. Some of the most unusual things can record massive amounts of data. This data can be from how hot it was 10,000 years ago to how many volcanoes erupted. The first thing I want to talk about are the trees. Our planets forests are like huge library full of scrolls just waiting to be read. Many people know that you can tell how old a tree is by how many rings it has. There is so much more than that tree rings can … Continue reading →

Chemistery

  By HFHS | August 27, 2012 - 2:19 pm |
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Today we did a lab about electric circuits. The main portion of the lab was learning how to use a Digital Multimeter (DMM). Once we understood how to use the DMM we used it to test a series of things. The first was one 1.5V battery and a 100 ohm resister. The second and third tests were just after adding batteries. We tested the circuit in various places just to see if the strength of the electricity would change. After we tested it we recorded all the information on a table. Over all we liked this lab and we think … Continue reading →

Crystal formation

  By HFHS | August 27, 2012 - 12:32 pm | ,
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Today in our final lab we studied the formation and dissolving process of crystals. The lab had us grow Epsom salt crystals and Alum( aluminum sulfate) crystals which was very cool. We grew them by dissolving their powder form in water then we put the liquid in petri dishes after that we let the water evaporate out of them. Then we examined the crystals under a hand lens. After that we made sugar glass by putting plain sugar in a small sauce pan and we melted it, being careful not to over cook or burn it. When we thought that … Continue reading →

Wonderful Eclipses

  By HFHS | August 24, 2012 - 10:56 am |
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This week I have started reading the book “Privileged Planet”. The first chapter I read was called “Wonderful Eclipses”. This chapter was all about (obvious) eclipses. I never realized how awesome they were until I read this book. The part that astonished me the most was that our planet is in the perfectest  spot in our solar system. When I say perfect I mean that we are in the circumstellar habitable zone of our solar system. If we were a little bit closer we would be fried. If we were a lot closer the planet’s orbit and spinning would become synced with … Continue reading →