Science refletion

One thing I learned from this unit was density. Density is the amount of mass per cubic volume. And the formula for density is mass divided by volume. I learned something about  this because Mrs. Hill taught me about a heart, and if you spilt the heart in half horizontally, there's a M and the top and a V at the bottom. The line sometimes represent divide in division. So M= Mass and V=volume. Mass divided by volume equals to density. I think one of the most memorable and meaningful things I did was the submarine because that taught me how to problem solve and to revise over and over again if I didn't get something or if it didn't become successful. It was also meaningful because it taught me that different people can have different ideas. Another thing that was memorable and meaningful is the layers of liquids because that also had to do with density. For example, the bottom color is at negative buoyancy because the liquid is denser than the others. And this is meaningful because I learned more about density and understand it better than before. 

 Photo

                                                                                      Here's a picture of layers of liquids:

Fraction Comparison Reflection

Question: You know how to compare fractions using cross products, LCD, reasoning. When is it better to use one method over another? 

When both denominators don't have numbers that are in common, you would use cross products or reasoning depending on if the question is hard to do in your head. But when the denominators can be equivalent, then you would use LCD to find out which one is bigger. But easy problems like 2/4 and 1/3, you can use reasoning because you already know how much 1/3 is and how much 2/4 is. 

Sportsmanship- on the sporting field and in the everyday life

1 example of sportsmanship: Never groan if you lose but learn from the mistakes I made. An example of that would be I would self-reflect about what you did good on or what you should work on etc.

3 ways I can demonstrate sportsmanship in PE: I can always try my best even though sometimes it doesn't work. And if I win, I never brag but compliment someone after class. Also I shake hands after every game.

2 ways that I can demonstrate sportsmanship in everyday life: I don't brag if I win, I just say "good game." I also play fair/ play by the rules. Like if we were doing water polo at our home pool, I would still play in the deep end and only use one hand to pass.

1 new way that you can demonstrate sportsmanship: I can try complimenting more, like during the game AND after the game.

Here's my poster:

Halloween podcasting :D

Cartesian Divers. (Homework)

         A cartesian diver is a bottle that has some kind of object inside with water. Like a pipette, (what we used in class.) And you can make it float or sink or make it stay in the middle. During class, we learned that if the mass and the volume are the exactly the same amount, then the object would stay in the middle. But if the mass is the smaller number, the the object would float. And if the mass is bigger than the volume, the object would sink. We also learned about density during class and the average density of water should be 1g/cm3. If an object floats in the water, it has a density thats less than 1g/cm3. If an object sinks in the water, the density is more than 1g/cm3.  

We also learned about positive buoyancy, negative buoyancy, neutral buoyancy, and ballast. Positively buoyant means when the object is floating up. Meaning the density is more than 1g/cm3 and the mass is less then the volume. But negative buoyancy means the object is sinking and the mass is more than the volume. And the density is more than 1g/cm3. Liked you guessed, neutrally buoyant means the object is in the middle. Meaning the density is exactly 1g/cm3 and the mass is the same as the volume. Also, ballast means any material you use to help it sink. The density of something can change it you change the volume or mass. And the formula of getting density is if you draw a heart in between, the you would see a M or top and a V at the bottom. M stands for mass and V stands for volume. So the equation should be mass divided by volume. 

Photo credits: http://www.physics.isu.edu/physdemos/fluids/pics/cartdive_a.jpg

Math Reflections: Factors and Multiples

Questions:

#1: Common multiples help you if you with questions that contains having to find out the common multiple of something. A common multiple is a multiple that both numbers have as one of their multiple. For example, if I had the number 6 and 9, the common multiple of 6 and 9 would be 3. But common factors help you with questions that include with finding the common factors. One example would be if there was a ferris wheel that goes for 3 seconds per round while another goes for 4 seconds. And they asked you what's the fastest time they can meet, then you would keep on adding 4+4 or 3+3 until you get a number that matches. In this case, the answer would be 12.

#2a: You can find the common factors by adding up 4+4 or 3+3 if I had a question like that ferris wheel. You keep on adding it until you spot a number that they have in common. Like 12. 12 is not the greatest common factor because you can keep on adding it up until you get 100 or more!

#2b: It sometimes provide the answer for you depending on the question. Because if the question is asking you to look for the greatest common factor, then you already know your answer.

#3a: You can find the common multiple by adding up the multiples by itself over and over again until you get a number that both numbers have. You can find the least common multiple by doing the same thing, except it's the first number you get that they have in common.

#3b: The least common multiple can also provide you the answer because if it was like the ferris wheel problem, you would need to keep on adding it over and over again until you get the seconds/time of when they meet.

My favourite number project