Monday, April 19, 2010
Agendas...
My computer had to get re-formatted because it wouldn't turn on, and before I could post them, they got erased... I'm so sorry, I know it was my responsibility. I'll try my best to get all of them from now on at least.
Thursday, April 15, 2010
Pinhole Camera Experiment
Sorry sir, I couldn't answer some of the questions because I hadn't tried the experiments, and 1 I think I didn't understand. And it says 15th of April because I typed the Title and made this post then, (But I didn't answer all the questions then ), I just hadn't published it.
Experiment 1
WHAT TO DO
Collect the pin-hole camera and make a small hole with the pin in the black paper. Hold the camera about 3m from the window and look through the camera at the lamp
You should see and image of the lamp on the tracing paper screen. Write down what the window looks like. Is it:
a) Upside down or the right way up? it is upside down
b) In color or black and white? it is black and white
c) The same size as the window itself or not? no it was way smaller
Experiment 2
WHAT TO DO
Change the distance of the pin-hole camera from the window.
How does this affect:
a) The size of the image?
b) How clear the image is?
Experiment 3
WHAT TO DO
Make another pinhole about 1 cm from the first one
Describe what you see below.
Didn't do this.
Experiment 4
WHAT TO DO
Make ONE of the pin-holes bigger using a pencil point.
What affect does it have on:
a) How bright the image is? it gets brighter the bigger the hole is
b) How clear the image is? it gets blurrier the bigger the hole is
b) How big the image is? it gets bigger as the hole gets bigger
Experiment 5
WHAT TO DO
Take off the black paper and stick a lens over the hole in the cardboard, INSIDE the box. Repeat experiments 1 and 2 using the lens. Didn't do this.
Experiment 6
WHAT TO DO
1. Look at the windows through the pin-hole camera especially if it is a sunny day. Didn't try this.
2. Sit someone in the beam of the projector and look at them with the pinhole camera. A: the person sitting was seen on the top of the pinhole camera, the pictures turns upside down when projected
3. Try lenses with different focal lengths (large or small curvatures). Didn't try this.
QUESTIONS
1. Why was the inside of you camera painted black?
2. Why was the light shield used?
3. Why was the image so much better with a lens?
FOLLOW UP TOPICS
1. Try to take an actual photograph with your pin-hole camera
2. Draw ray diagrams to show how the image is formed on the tracing paper screen
Experiment 1
WHAT TO DO
Collect the pin-hole camera and make a small hole with the pin in the black paper. Hold the camera about 3m from the window and look through the camera at the lamp
You should see and image of the lamp on the tracing paper screen. Write down what the window looks like. Is it:
a) Upside down or the right way up? it is upside down
b) In color or black and white? it is black and white
c) The same size as the window itself or not? no it was way smaller
Experiment 2
WHAT TO DO
Change the distance of the pin-hole camera from the window.
How does this affect:
a) The size of the image?
b) How clear the image is?
Experiment 3
WHAT TO DO
Make another pinhole about 1 cm from the first one
Describe what you see below.
Didn't do this.
Experiment 4
WHAT TO DO
Make ONE of the pin-holes bigger using a pencil point.
What affect does it have on:
a) How bright the image is? it gets brighter the bigger the hole is
b) How clear the image is? it gets blurrier the bigger the hole is
b) How big the image is? it gets bigger as the hole gets bigger
Experiment 5
WHAT TO DO
Take off the black paper and stick a lens over the hole in the cardboard, INSIDE the box. Repeat experiments 1 and 2 using the lens. Didn't do this.
Experiment 6
WHAT TO DO
1. Look at the windows through the pin-hole camera especially if it is a sunny day. Didn't try this.
2. Sit someone in the beam of the projector and look at them with the pinhole camera. A: the person sitting was seen on the top of the pinhole camera, the pictures turns upside down when projected
3. Try lenses with different focal lengths (large or small curvatures). Didn't try this.
QUESTIONS
1. Why was the inside of you camera painted black?
2. Why was the light shield used?
3. Why was the image so much better with a lens?
FOLLOW UP TOPICS
1. Try to take an actual photograph with your pin-hole camera
2. Draw ray diagrams to show how the image is formed on the tracing paper screen
Monday, April 12, 2010
How can you improve your MYP grade next term?
I need to get a higher mark on criteria D especially. I did get a seven for term 1 and probably 2 from what I counted in average, and I'm really happy, but I barely made it into the 7 area. So, I think the next criteria D or B I think?, I should try my best to get full marks. This year it counts last term and this terms as well, which is what makes it harder, but also easier. That is because if you get one grade bad it could effect you for the whole year, yet if you normally not get a 6 and you got one in the first term or something, it could higher your grade. So for criteria D i got a 4 and that effected criteria D a lot. What I can do myself, is to try my best, and review daily, so I can remember all information to the fullest. Knowing information helps because at the time of a test or whatever, if I know the information, I can think of a way to use it to support my statements or thoughts.
Agenda: 02/02/2010
• Show petri plates bread mold (discuss lab write up)
• Show where students get information to revise from
• Discuss differences between bacteria and viruses (how they cause diseases)
Homework: practice lab report
• Show where students get information to revise from
• Discuss differences between bacteria and viruses (how they cause diseases)
Homework: practice lab report
Tuesday, April 6, 2010
Hypothesis for Scientist Dr. Edward Paginilli's Experiment
"My hypothesis is that the tongue has specific regions that only can taste sweet, bitter, sour, and salty."
I agree to this hypothesis because when I did the experiment with the vinegar, sugar, salt, and black coffee, I seemed to taste stronger tastes on the different bits of the tongue for each flavor. Although I couldn’t taste it that well in general for some of the things I could taste, I tasted it more strongly on a certain bit of the tongue, than overall. Even though I did taste it more on the certain places, you could still taste it on other places, I believe there’s not only one particular part that you can taste the sweetness, or saltiness etc. So I believe the hypothesis above is correct but incorrect.
I agree to this hypothesis because when I did the experiment with the vinegar, sugar, salt, and black coffee, I seemed to taste stronger tastes on the different bits of the tongue for each flavor. Although I couldn’t taste it that well in general for some of the things I could taste, I tasted it more strongly on a certain bit of the tongue, than overall. Even though I did taste it more on the certain places, you could still taste it on other places, I believe there’s not only one particular part that you can taste the sweetness, or saltiness etc. So I believe the hypothesis above is correct but incorrect.
Sunday, March 28, 2010
Wednesday, March 10, 2010
Brainpop videos: Erosion and Rock Cycle
Brainpop: Rock cycle
The three rock types, metamorphic, sedimentary, and igneous are all made of magma, lava, mineral grains, and crystals. Metamorphic rocks are made of heat and pressure onto baking rocks, or earth’s plates moving to create metamorphic rocks. Sedimentary rocks are forms above surface usually from erosion. Igneous rocks have two types, extrusive igneous rocks and intrusive igneous rocks. Both are made when magma/lava cools forming rocks, but the formation is different. Extrusive ones’ magma comes onto the earth’s surface (becoming lava) and cools to form rocks. Whereas intrusive rocks forms when magma cools and hardens underground after thousands of years. The rock cycle is like this, metamorphic and sedimentary rocks can be melted and cooled back to igneous rocks, igneous and metamorphic rocks then can be eroded to make sedimentary rocks, finally sedimentary and igneous rocks near heat and pressure can become metamorphic.
Brainpop: Erosion
Erosion is anything that can change the landscape, like when plant roots keep sand and soil together. The first part of erosion is when sand and rocks are picked up and thrown about by glaciers, wind, running water, or waves. Secondly, another part of erosion is weathering. Weathering is when small particles of dirt wear away from rocks. Lastly erosion is also caused by rivers, oceans, and rain, when it carries soil down the water. In these processes the pebbles hit each other constantly, gradually getting smaller. Finally erosion some issues (not necessarily bad) like floodplains, sandbars, and river deltas, or even change the shapes of the continents. But erosion forms some things as well such as beaches.
The three rock types, metamorphic, sedimentary, and igneous are all made of magma, lava, mineral grains, and crystals. Metamorphic rocks are made of heat and pressure onto baking rocks, or earth’s plates moving to create metamorphic rocks. Sedimentary rocks are forms above surface usually from erosion. Igneous rocks have two types, extrusive igneous rocks and intrusive igneous rocks. Both are made when magma/lava cools forming rocks, but the formation is different. Extrusive ones’ magma comes onto the earth’s surface (becoming lava) and cools to form rocks. Whereas intrusive rocks forms when magma cools and hardens underground after thousands of years. The rock cycle is like this, metamorphic and sedimentary rocks can be melted and cooled back to igneous rocks, igneous and metamorphic rocks then can be eroded to make sedimentary rocks, finally sedimentary and igneous rocks near heat and pressure can become metamorphic.
Brainpop: Erosion
Erosion is anything that can change the landscape, like when plant roots keep sand and soil together. The first part of erosion is when sand and rocks are picked up and thrown about by glaciers, wind, running water, or waves. Secondly, another part of erosion is weathering. Weathering is when small particles of dirt wear away from rocks. Lastly erosion is also caused by rivers, oceans, and rain, when it carries soil down the water. In these processes the pebbles hit each other constantly, gradually getting smaller. Finally erosion some issues (not necessarily bad) like floodplains, sandbars, and river deltas, or even change the shapes of the continents. But erosion forms some things as well such as beaches.
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