Menu
science
Mystery density lab
Today we did the mystery density lab. We had to measure the mass and we had to measure the volume and then divide the mass from the volume. Me and ben were in the same group. here are all our calculations.
Analyze
1. (a) A problem that could have occurred that could have caused an experimental error is not measuring the amounts.
(b) Being careful how much you put in the beakers.
2. My predictions were fairly close and obviously the lighter items I guessed had a lighter weight. Like the sand and salt would have a similar density.
Conclusion
1. (a) To find the density of a fluid or solid, I took the mass of the material, then divided by the volume. For an example, if the was 102.48g and the volume was 300mL, I would divide 102.48 by 300mL giving me .34g/mL.
(b) For me, dividing the mass by the volume is the easiest way to find the density of the fluid, or solid.
1. (a) A problem that could have occurred that could have caused an experimental error is not measuring the amounts.
(b) Being careful how much you put in the beakers.
2. My predictions were fairly close and obviously the lighter items I guessed had a lighter weight. Like the sand and salt would have a similar density.
Conclusion
1. (a) To find the density of a fluid or solid, I took the mass of the material, then divided by the volume. For an example, if the was 102.48g and the volume was 300mL, I would divide 102.48 by 300mL giving me .34g/mL.
(b) For me, dividing the mass by the volume is the easiest way to find the density of the fluid, or solid.
Rainbow density Lab
Even though I wasn't there for class, today we did the rainbow density lab. The lab is basically about fluids and how dense they are. Here is what we had to do.
Here are some of my classmates observations
This was actually a really straight forward lab. All we had to do was add the certain color and amount of sugar to each beaker/cup and warm/stir the fluid. After doing this u would carefully drop each color one after anther from greatest to lowest density. What I observed was that the saturation of each color was what made it stand out more and actually look like a separate layer. What i mean by this is that green and red were very visible and they were the ones with the highest saturation. But yellow and blue look almost invisible because the saturation was really low. If you don't understand what I mean pay attention to the pictures below and observe which colors you can see more- Jujhar Minhas
Thanks for reading my blog hope you learned a lot!
Playland forces project
Today we went to playland for a field trip. At play land we had to find what force the rides used. There is gravitational force, friction force, tension force, elastic force, electrostatic force, and magnetic force. We also had to take pictures and make a video on the rides here is the video.
Here is what we had to do
Here are the definitions of the forces
Today was and I hope you learned a lot if you have any question just leave comment below thanks!
Cow Eye Dissection
The eye is one of the most important parts of our body. In class we dissected a cows eye, It smelled really bad. My partners were Jujhar and Bill. We had to cut off a lot of the skin and muscle before we got to cut it open here are some picture .
Light Ray lab
In class we had to do a light ray lab where turned off all the lights and we turned on our light ray boxes to see how mirrors and lenses reflect and refract. I did this lab with Nandini and Vidhi. We started the lab on Monday and we finished the on Wednesday. This lab was actually the start of a new chapter, so keep scrolling down and I hope you enjoy this blog!
The name of mirrors and lenses are
-flat mirror
-convex mirror
-concave mirror
-Concave lense
-convex lense
The name of mirrors and lenses are
-flat mirror
-convex mirror
-concave mirror
-Concave lense
-convex lense
The first part about the lab was the flat/plane mirror. I saw that if we put the mirror on the angle the light from the light box will reflect off the mirror and go a different way. The incident ray and the reflected ray are equal so they are both 60 degrees. Here is the diagram that we drew.
Law of reflection: The Reflection for light hitting the mirror at an angle is the angle of incidence (i)equals the angle of reflection(r).
Law of reflection: The Reflection for light hitting the mirror at an angle is the angle of incidence (i)equals the angle of reflection(r).
Convex mirror
The Next part about the lab was the convex mirror, I think that the convex and concave mirrors were the most challenging question but the most fun. For this question we used a multi slit baffle The convex mirror is a curved mirror, when the light hits this mirror straight on the reflected ray will be at an angle and it would diverge. Here is picture of the convex mirror in action.
Law of reflection: For the convex mirror after it reflects the the rays will diverge .
Law of reflection: For the convex mirror after it reflects the the rays will diverge .
Concave mirror
The concave mirror is kind of like the opposite of the convex mirror. The instructions said to put this mirror right in front of the light box and we saw that it reflected in an angle but this time it meets at a point then it diverges. For this mirror we used a multi slit baffle here is the diagram and the picture
Concave lensBefore we even started this question I knew that the Concave lens would refract. We put this lens right in front of light box so the the light can hit the ray straight on. We used a multi slit baffle so there were three slits. After the light was refracted the light went three different directions .
|
Convex lensI thought this one was the most trickiest, after we did it we started asking our other classmates we did it right. I learned that if we put the prism in the right position we could get it to refracted differently than the concave mirror and this time it converged.
|
Questions and answers
1.How do light rays behave with a plane/flat mirror?
It depends on what angle you put it in and the angle incident ray will always be the same as the angle of the reflected ray. For example if the the incident ray is 60 degrees the reflected ray will be 60 degrees.
2.How do light rays behave with concave mirror and lens?
I would say that the light will diverge even if its being reflected of refracted. Also when the incident rays hit the lens or the mirror they will always be to the inside.
3.How do light rays behave with convex mirrors and lens
I would say the behave the opposite to how they behave to the concave objects. Even if the mirror reflects and the lens refracts they both converge at one point or another.
4. Examine the lens on the front of your ray box. What kind of lens is it? Why do you think this kind of lens is used for the ray box?
I think its a really thin concave lens because its curved to the inside. I think it is used to magnify the light so its more visible.
It depends on what angle you put it in and the angle incident ray will always be the same as the angle of the reflected ray. For example if the the incident ray is 60 degrees the reflected ray will be 60 degrees.
2.How do light rays behave with concave mirror and lens?
I would say that the light will diverge even if its being reflected of refracted. Also when the incident rays hit the lens or the mirror they will always be to the inside.
3.How do light rays behave with convex mirrors and lens
I would say the behave the opposite to how they behave to the concave objects. Even if the mirror reflects and the lens refracts they both converge at one point or another.
4. Examine the lens on the front of your ray box. What kind of lens is it? Why do you think this kind of lens is used for the ray box?
I think its a really thin concave lens because its curved to the inside. I think it is used to magnify the light so its more visible.
Bonus
Are teacher said if we make a rainbow out of a clear prism she would give us a bonus.
I hoped you liked my blog, because I learned a lot and I hope you did too thank you!
Slinky wave lab
In class we had do lab about waves and how they move for our new unit on optics . Our teacher made waves much easier by giving us slinkys as an example of a wave. We were in a group of three trying to figure out things about waves. My partners were my friends Liam and Hayden. During the experiment one person stood on one side and another person stood on the other side and we made transverse waves and longitudinal waves. We also observed how much energy takes to reach to the other side.
I hoped you liked reading my blog if you want to watch our funny video scroll down if you want to make a comment make a comment. Thank you bye !
Boys Jokers Classic
On friday we went to the jokers classic. Jokers Classic is a tournament between some of the schools in the lower main land. Not all schools have it but some schools do like JO, Churchil and many others.This was actually my first jokers classic this year. so I hope you enjoy this blog.The three body systems I chose were Muscular Skeletal and Nervous systems.
Muscular
I chose muscular because with your muscles you could move around, you can defend, you can attack you could do many thing s with your muscles.
Skeletal
I chose Skeletal system because with out the bone your body would be useless. Also your bones help your muscles in every thing your body does.
Nervous System
Te Nervous system helps your body pump blood and makes sure the blood goes all over you body. In Basket ball when you run around your nervous system starts pumping blood faster around your body.
Choose 3 of the 11 systems studied in class and describe how it is used in basketball with an example. Ensure to have picture from the game to support your work.
This what we did in class if you want see more of my blogs keep in tuned.
Osmosis Jones
In class we watched Osmosis Jones, it was like a action movie but it was inside a human body. The villian was the disease, the hero was a cough pill and the white bllood cell,and the main character was the human Frank. He ate really unhealthy things and thats how the diesease came. Now are teacher asked us some question, here are the answer below.
Explain how osmosis jones exemplifies a white blood cell?
osmosis jones exemplifies a white blood cell by helping take down pathogens antigens etc… Like a white blood cell if he sees a pathogen he would kill it. In the movie he goes all over franks body and tries to protect it. Together Drix and Osmosis stopped the Red Death from killing Frank.
Explain how Drix (drixonal) affects the body? Is this similar to a real cold pill?
Drix goes around the body using his ice gun freezes all the germs until the white blood cells come to destroy them. He usually does what a cold pill usually does, like it helps cure a sore throat and cough. I think Drix would go through a different process of helping the body than real cold pill but all the other things are the same.
Explain how Frank’s health habits created a situation for not only infection but for poor response and recovery from that infection?
His habits are really bad. He eats really unhealthy. Even if the food was taken by monkey and fallen on the ground he would still eat it. In this scene of the movie the food was an egg, the egg had all lot of pathogens and antigens etc..., and one of them was the Red Death.
How does an airborne allergen (ie. Pollen, dust, dander etc.) affect the body? What is the body’s defense against this situation? What is the body’s response to this situation if your defense tactics don’t work?
It can actually make you quite sick. But if there is only a little bit you will only sneeze. Sometimes during a small allergic reaction some effects sneezing runny nose coughing. The body releases antibodies to destroy the allergen, if the defense doesn’t work some effects rash and closed up throat.
What is the function and purpose of a fever?
Fever is when your temperature is heating up. It’s usually for destroying germs bad bacteria etc. It even helps the white blood cells do it job. Some symptoms are overheating, head ache and burning eyes.
What would it mean for the Red Death to be more infectious and dangerous than Ebola?
What would it mean for the Red Death to be more infectious and dangerous than Ebola?
Red Death would be more infections and dangerous than Ebola because people already know what the symptoms of Ebola and how it starts. But Red Death was a new disease and the white blood cells thought it was a normal cold.
This what we did in class if you want see more of my blogs keep in tuned.
Gummy Bear Project
In class we worked this gummy bear project. What we did is that we put two gummy bears in water and in sugar water and we left the gummy bears in there for three days . When we came back the color of the gummy bears was all faded but it got so much bigger here are the measurements.
Galiano Island
In galiano we had a lot of fun, we learned a lot. It was mostly Athletic things like kayaking, biking hiking . It was actually was the first time I was cooking for my self the whole week. Our campsite was by the sea so when it was evening the sunset was really pretty. At night the stars were really bright and you can see a lot of them .
Hypothesis
Why are tree barks so rough ?
I found this idea from seeing a lot of trees and one was really cool, the bark was a different colour. The bark of the tree even looked much older than the other tree's bark, for example it had green mos sicking out of it and the wood was chipped. I think the bark is so rough because its for protecting other living things that are in the tree. Here is the tree that I saw.
I found this idea from seeing a lot of trees and one was really cool, the bark was a different colour. The bark of the tree even looked much older than the other tree's bark, for example it had green mos sicking out of it and the wood was chipped. I think the bark is so rough because its for protecting other living things that are in the tree. Here is the tree that I saw.
10 main Lab Safety Rules
1. Make sure there is a teacher supervising you during a experiments
2.Do not eat or drink anything while your doing a experiment
3.Never leave your lab bench unattended while you are doing a experiment
4.Have your equipment on at all time during a experiment
5.Don't touch any chemicals or equipment until you have been asked to
6.Notify the teacher if you see anything dangerous
7.Always remember instructions the teacher gives you
8.Make sure you know where all the safety materials if there is a fire
9.Never work alone without a teacher saying yes
10.Be responsible enough to make the right decisions
Methane Bubbles
In class are teacher made methane bubbles and let us hold it while she lit them on fire. First she told us to wash are arms, then we took some bubbles from the container. she lit them on fire.Hope you enjoy the slow motion video.
Catapult Competition
At school we made catapults with popcicle sticks, rubber band and plastic spoons. Here is the video of our trial and slide show.