Math

Math

                In math we are learning about graphing. In this unit we must know how to set up a graph, set up a table of values, and how to put a pattern/table of values on a graph. To set up a graph, you need to:

1.      Make the graph: make sure the lines are straight.

2.      Label the axis correctly according to information(Ex: Cost=C, Distance=D).

3.      Write title of graph on top of page.

4.      Decide how much each space goes up by.

5.      Plot data on graph.

6.      Connect the dots from left to right.

To set up a table of values you need to:

1.      Put titles of info on the graph.

2.      Graph the values.

3.      Title it.

We also need to know if a pattern is linear. On a table of values, you can find this out by seeing if the numbers increase the by the same number every time. On a graph, you can find this out by seeing if the line it forms is a straight one.Math

                In math we are learning about graphing. In this unit we must know how to set up a graph, set up a table of values, and how to put a pattern/table of values on a graph. To set up a graph, you need to:

1.      Make the graph: make sure the lines are straight.

2.      Label the axis correctly according to information(Ex: Cost=C, Distance=D).

3.      Write title of graph on top of page.

4.      Decide how much each space goes up by.

5.      Plot data on graph.

6.      Connect the dots from left to right.

To set up a table of values you need to:

1.      Put titles of info on the graph.

2.      Graph the values.

3.      Title it.

We also need to know if a pattern is linear. On a table of values, you can find this out by seeing if the numbers increase the by the same number every time. On a graph, you can find this out by seeing if the line it forms is a straight one.  http://www.wikihow.com/Make-a-Line-Graph

Optics

 

In Science, we have just finished the topic on Cells and Theory and we are moving onto the new topic of Optics. In Optics, we learn our sense of sight and the behavior of light. We know that light is electromagnetic radiation that can be detected by the eye. With this knowledge, we needed to know whether or not light was matter. We determined that light is not matter, but energy. We can conclude that light is energy by using a radiometer, a device similar to the one on the left.

We also learned that there are two main types of light, incandescent and luminescent. Incandescent light is created by burning or glowing through heat. Luminescent is producing light, but not through heat. Luminescent light can be further sub-divided into 3 different groups. They are . . .

Fluorescent: produce only when electricity is provided. Electricity reacts with chemical inside tube to produce light. Example: classroom lights

Phosphorescent: stores and gradually give off light. Works even after energy is removed. Example: glow in the dark stuff

Chemiluminescent: creates light through chemical reaction. Example: glow sticks

We further on learned about radiation. Radiation is energy emitted through waves. There are different types of radiation. From the lowest radiation to the highest radiation, it is as follows . . . 

Radio waves > Microwaves > Infrared > Visible > UV rays > X-rays > Gamma rays

Electromagnetic radiation is made by photons, which are mass-less particles that travel at the speed of sound. We also learned about refraction and dispersion. Dispersion is the process of separating white light into its visible spectrum (ROY G BIV). Refraction is changing the light’s rays as it passes through matter. Refraction and dispersion are responsible for rainbows, since when white light enters a drop of water, it is dispersed as it reaches the other side. The arch, in this case, depends on the place we see it relative to the sun.

 

All of this information was to be on the quiz on April 17th.