Science Class
For my
blog post today I will be talking about what we are learning and what
experiments we will be performing in science class. In science we are learning
about fluids. We just started this unit so we haven’t learned very much yet.
The main things we’ve learnt are what fluids are and what viscosity is.
Throughout my blog post I will discuss the definition of these topics and how
we prove them in experiments.
Fluids
are any substance that flows, spreads out evenly when poured, and exerts
pressure. Fluids are usually gases or liquids. An example of a fluid is carbon
dioxide. To prove that carbon dioxide is a fluid, in class we did an
experiment. In the experiment, we put baking soda and vinegar in a beaker than
put the top of the beaker over a lighted candle. The candle needed oxygen but
carbon dioxide took the oxygen’s place when it was ‘poured’ out of the beaker,
therefore, making it a fluid.
We have
also learned about viscosity. Viscosity is the opposite of fluidity and is the
resistance of a fluid to change in shape or movement. Fluids that flow easily
or quickly are not viscous. We will be performing an experiment on the viscosity
of various fluids. We will have a cookie sheet on an angle and will pour the
fluid while timing the amount of time it took to reach the finish line on the
cookie sheet. This experiment will be taking place on Friday, February 6th.
I hoped you enjoyed my blog. Thank you.
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