Weekly blog - 4/4 - 4/11 - Ocean currents

en.wikipedia.org

Summary: Oceans currents are a crucial part of the ocean environment.They are powered by wind circulation across the surface of the ocean. Ocean currents are created by density, salinity, temperature changes, and wind. Because of this, wind currents and ocean currents travel in the same general direction. When two winds clash, they bounce back and then turn causing gyres. Ocean currents also create gyres (from the wind). This occurs along with the wind. The water hits land masses causing it to bounce back and form and travel in a circular shape. This means that if there were garbage it would just stay there for a long time. (GPGP) Currents flow clockwise in the northern hemisphere and counterclockwise in the southern hemisphere. 

SP2: Developing and Using Models:
We used models to explain how different things contribute and affect the forming of currents, mainly ocean currents.We put two rocks in a small tub of water along with some ice (in one corner). We put food dyes to act as pollutants and the change in temperature to create small currents. The food dye was able to move a little bit. After a few minutes, we blew on the surface of the water to create wind currents. The food dye was able to spread across the 'ocean' much faster than before. We used this information to fill out a few worksheets about ocean currents.

Comments

Post a Comment

Popular posts from this blog

Amedeo Avogadro - 5/27/18

Image
Summary : Amedeo Avogadro was an Italian scientist who created what is now known as Avogadro's law. Known as a founder of the atomic-molecular theory, he was the first scientist to realize that elements could exist in the form of molecules rather than as individual atoms. His biggest contribution to science, Avogadro’s law, states that equal volumes of gasses under the same conditions of pressure and temperature will contain an equal number of molecules. Amedeo Avogadro was born on August 9th 1776 to Filippo Avogadro and Anna Maria Vercellone. Coming from a family of lawyers, Advogadro was guided to a legal career, and became a bachelor of jurisprudence in 1792. Despite a successful legal career; Avogadro has started private studies of mathematics and physics, which then he pursued full time. SP8 - Communicating Information : This week, I communicated information in the form of a wanted poster about a certain scientist. I decided to create a wanted poster about Amedeo
Read more

Roller Coaster Project Blog - 2/18/18

Summary : A roller coaster ride is a thrilling experience which involves a lot of physics. Part of the physics of a roller coaster is the physics of work and energy. The ride often begins as a chain and motor which exerts a force on the train of cars to lift the train to the top of a vary tall hill. Once the cars are lifted to the top of the hill, gravity takes over and the remainder of the ride is an experience in energy transformation. At the top of the hill, the cars possess a large amount of potential energy. Potential energy is dependent upon the mass of the object and the height of the object. As the cars descend the first drop they lose much of this potential energy in accord with their loss of height. The cars subsequently gain kinetic energy. Kinetic energy is dependent upon the mass of the object and the speed of the object. Therefore, their original potential energy is transformed into kinetic energy. Backward-Looking:  How much did you know about the subject before we
Read more

Wave Communication - 3/25/18

Image
Summary : There are two types of signals, analog and digital. An analog signal changes in frequency and amplitude all the time in a way that matches the changes in the voice or music being transmitted. A digital signal has just two values, which we represent as 0 and 1. An analog signal varies in frequency and amplitude. A digital signal has two values, 0 and 1 (or ‘on’ and ‘off’). The signal is converted into a code using only the values 0 and 1. The signal becomes a stream of 0 and 1 values. These pulses are added to the electromagnetic wave and transmitted. The signal is received and then decoded to recover the original signal. Both analogue and digital signals can pick up unwanted signals that distort the original signal. Digital signals can be cleaned up in a process known as regeneration because each pulse must be a 0 or a 1, so other values can be removed. Analogue signals can be amplified, but the noise is amplified too. This is why digital signals give a
Read more