Kamis, 22 Januari 2015

Science in Everyday Life

For today's blog I'm going to do 5 things on my list and explain to you about.
1. Watch a spider spins its web. What techniques does it use to achieve the final shape.

Photo credit : Google

a spider has a silk glands and it is the materials that made the web itself. First a spider will produce the silk. After it has been produced the spider will make the pattern of the web from the inside to the out. After that, a spider will use it's arms and legs to help those pattern connect to each other from the outer part to the inside part.

2. Watch the sky at sunset. Which colors do you see? Which are the closest to the earth and which are the highest in the sky? How long does it take the sun to disappear below the horizon?

Photo Credit : Ruby Ishak

In the picture the colors are white, yellow, orange, purple-ish blue. The white, yellow and orange are the closest to earth, while the purple and blue color is the highest in the sky. I took about 1 hour util the sun disappear below the horizon. Looking at the time period from 5 pm - 6 pm.

3. Play a musical instrument. How does that instrument create sound? how can you change the sound it makes?

Photo Credit : Ruby Ishak

The instrument that I chose is the piano. When someone is pressing the tuts or the white blocks that existed in the piano, It will make a sound. This happens because the tuts inside are connected with a string, when we press those tuts, the tuts will hit the string . Vibration happens and created sound. You can change the sound by pressing different tuts and playing different style of chords.

4. Create heat in three different ways. Describe each process and indicate which produces the most heat with the least effort.
 The three easiest way to create heat is to rub your hands together, hug another person, and use a sweater or jacket. when you rub your hands together, it gives friction. The friction combined with the with the body heat, creates a warm situation. Same thing when your hugging another person. When two bodies stick together, both of them will give out body heat, which makes it warm. The last is using a sweater. by using a sweater, your body is trap, thus gives us the heat. this makes the easing way to create heat because you don't need friction and you don't need someone else.

5. Rub a balloon ( or a ruler in my case) on your hair in the dark ( since its a ruler I didn't do it in the dark) to watch a static electricity. Can you make the balloon ( ruler) stick to anything after it has been rub.
The ruler did create a static electricity. I rub it  on my hair and then put it on top of a piece of small paper. Then it suddenly stick to the ruler. This happens because there is an exchange in the electrons.

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