Archive for May, 2006
Question: Polypropylene sorbent prices? Oil spills?
For a science oil spill task, i need to choose the best method of cleaning up oil spills. After an experiment I decided sorbents, and found out that polypropylene is a oil spill sorbent. Does any one know the price for polypropylene? Thanks
Answer: Found a contact phone number on Google.
The # is at the page bottom.
This web site deals with oil tanker spills:
Their home sit is:
Hope this helps, interesting question.
Gulf Oil Spill Science Experiment On All Says Biologist
Vernier calipers are very useful when precise measurement is needed. Vernier calipers are used in many Science Experiments.
A vernier caliper can measure to the nearest 0.1mm. A vernier caliper is shown below.
The ten divisions of the vernier scale on vernier calipers are spaced over 0.9 cm of the main scale and the aim is to select the vernier graduation which is nearest to being in line with a main scale graduation.
Figure 1: Vernier Caliper
History of Vernier Calipers
Vernier Calipers were introduced in 1631 by Pierre Vernier, a French mathematician,scientist and engineer. In 1631, Pierre Vernier published a publication called La Construction, l’usage, et les propriétés du quadrant nouveau de math-matiques. In this book, Pierre Vernier described his invention, the Vernier caliper with 2 graduated scales.
Click here to read about How to read a vernier caliper.
Question: How do you do an experiment for this science fair project?
The topic is: How does global warming affect plants and the environment?
I got this idea from Yahoo! Answers. The person said to build a (thinking of the word!) model (or something) of earth and see how it affects things by increasing the temperatures. Is that a good idea? If yes, how can I build it and what materials do i need? Is there another way?
Answer: If you do that, you will take a long time to be done.
Maybe you can make a 3 day experiment and produce the results during science fair. You will need an incubator or anything to manage it though.
Take 4 plants of the same type and approximately same size and age. Preferably small plants so it will be easy to store. Replant them into small boxes or pots of the same size. Place two of the pots in a normal temperature room where it can get all the sunlight it needs. The other two will be placed in an incubator where the temperature will be increased about 4 degrees higher than the normal room temperature.
Don’t forget to provide all the nutrients the plants need.
After 3 days, record your observations. Take photos of the plant before and after the experiment for comparison. It will be the main statement. Present the plants during the fair too.
There you go, all ready for the science fair!
Rotation and Revolution of Earth – Science Experiment – Japinder Kaur Baweja