Archive for September, 2007

Rachel Carson

Rachel Carson and her writings launched the Environmental Movement. Check out the link to watch a short presentation on her life with some selected quotes from her writing. I remember as a kid listening to one of her books about the sea on tape. Wow!

Why not head to the library and check out some of her writings? Let me know what you think. Perhaps, you can be a famous writer who transforms the world in a powerful and beautiful way by your insights and observations. I hope that you do.

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Metric System Staircase

The metric staircase is a helpful visual to teach how to convert in the metric system. Also look at the previous post to help you remember the different prefixes and their order.

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Metric Me Conversion Mnemonics

In science we are using a variety of measuring instruments from dressmaker’s tape to calipers to measure various parts of our bodies. Then we’ll be converting those measurements into different units and creating our likeness with our correct height. However, our bodies will be compressed horizontally. Here is a fun website that has a variety of mnemonics to help you remember the SI Unit conversions. Can you think of other ones? Submit a comment if you have one that we could benefit from.

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Reading Science Equipment

This week in science we’ll be learning about how to use and read different scientific equipment.

Reading Graduated Cylinders 

An important thing to know is how to read fluids properly.

1.  Have a piece of paper with a solid line written on it. Hold this behind the graduated cylinder to help the meniscus stand out clearly.

2.  Here is a video that shows you the proper way to read the meniscus.

NOTE: Parallax is the phenomenon of having a distortion in the reading by not being at eye level.

Reading a Triple Beam Balance

This activity will help you to learn about the triple beam balance.

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Converting Fractions to Decimals to Percents

The eighth graders are reviewing converting fractions to decimals to percents. They need to create notes to remind them of the process and they need to be prepared to explain how to do this to the 7th graders. Next week the 8th graders will have to teach the 7th graders, then there will be a pair quiz on Tuesday consisting of an 8th grader partnered with a 7th grader. So be prepared!

Here are some YouTube videos to support you:

1. My (MVMS) famous “Decimals to Fractions” YouTube video

2. NASAConnect Percents, Fractions and Decimals video – a fairly basic video; if you really struggle with this concept, you may want to start with this video

3. Fractions to Decimals

Here is a website that I created about fractions. Go to the module that says “Fun Fractions Games and Practice.” The following games will help you practice:

a. Equivalent Fractions Game

b. Quia – Equivalent Fractions Concentration

c. BCC Saloon Snap Fractions, Decimals and Percents Card Game.

Enjoy… and good luck on Tuesday’s quiz.

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Scientific Drawings

An important skill that scientists need is to be able to communicate information. Some times that requires drawing things that they observe. Scientific drawings are different from artistic drawings. Artist drawings are intended to evoke emotions. Scientific drawings are educate. Both have their value. This link will give you some helpful suggestions on making scientific drawings.

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