The day in Tokyo was very normal. It was very sunny and really peaceful where John’s family lived. John and his family moved from America to Japan because America had hurricanes and tornados that happens every year. John had finished his school and was at some store to buy some snacks. At school, they had a practice for preparing a Tsunami and a Earthquake. He learnt about how people can protect themselves in a Tsunami. He found a shop that sold candies and cakes.
As he went inside the shop, the shop started to wobble. Cakes and candies started to drop from the counter. First he thought a big truck was just passing by the shop but he heard a person that he learnt at school. “JISHIN!!!” (which meant Earthquake). He knew what he had to do, but he was too scared to do it. Then he saw a man who pushed him under a table. After he got pushed under the table, all the snacks and cakes were falling down he felt relieved that he got pushed. The signs and pictures on the wall were also falling down. About 5 minutes later, the Earthquake stopped, he was really relieved that the Earthquake has stopped. He went outside the shop, he saw most of the building has fallen. Some people were helping others to get out from the collapsed buildings. He saw other people running away from the shore. He didn’t know why they were doing that but a stranger came to me and told me something in Japanese. He didn’t know what he was talking about but He knew a word that he said “Tsunami”.
John didn’t run but walked away from shore, then people started screaming behind him. He looked behind him and he saw a massive wave of water coming up to him. The water carried big trees, cars and even some parts of buildings. I started sprinting away from shore up to the steep hill of a mountain. He still saw people trapped inside collapsed buildings. He wanted to help them but the Tsunami came closer and closer. When the Tsunami was about 10 meters close, Somebody on a motorbike caught him and put him behind the motorbike. He felt much safer because the motorbike was faster than the tsunami. After the motorbike stopped at the top of the mountain, he said thank you to the driver. He looked down at the city he was just at. All the buildings were collapsed and every place was flooded with water. He thought about his family, mom, dad and his little brother. He was really worried about his family, even his annoying little brother. A person gave him water, food and a sleeping bag. He couldn’t sleep for a long time and he saved the food for the next day.
It was 5am when he woke up. The sun was rising from the sea. He looked at the city again. The water was still there, he drank some water and ate some food. He saved some of the water and food for later. Around him some people were hurt and many other people were sleeping. John wondered where might his family be. In the water? Maybe in a campsite that might be safe? Or maybe somewhere he can’t even think of. Last time he saw his family at their house. John’s family all knew where to go when it was an emergency. Their family would all meet at the top of the hill of Shinagawa. It would be a long walk from here, so he asked a person who knew how to speak english. He asked the man if there is a transportation that leads to the top of the hill of Shinagawa. The man said “You can use one of the emergency boat to get around. I can ask a person who knows how to drive those stuff”. John and the man started to look for people who can drive the boat. It took ages looking for one, but the man finally found a Firefighter who knew how to drive the boat. John thanked the man and firefighter started the engine of the boat.
About 3pm, the boat reached the top of the hill. He got off the boat and ran to the meeting site. He saw a small campsite and there was about 10 to 12 people in the campsite. They were getting ready to eat dinner. The people in the campsite saw John, they came up to him. They said that their parents were there. John’s parents came out from the tent. John was very happy because all his parents were there. John’s family lived happily ever after.
This week, we did robotics with my friend. Instead of doing some code for the robots, we made costumes for our robots. We are also reviewing on our code so there are no mistakes. Our code is long so it took a bit of time to review. Our group is also choosing the costumes for our robots. I am very excited to do the dance challenge. If our group can win, It will be very grateful.
Another thing that we did is that we started the natural disaster expert group. Our group is going to present about volcanoes. We have to do a research about volcanoes and then present the what we learnt. We didn’t have enough time to do research so we just worked on the plans for the project like: How to present the research or how we can cooperate everyone in the project.
On Wednesday, Dec 15th we had a field trip and we went to Mega Box to do skating at Mega Ice. To be honest, I wasn’t good at skating, but I got better and better because I practiced a lot. Many people got hurt and I also got hurt on my ankle because the skates didn’t fit. But it was still very fun.
I also noticed that skating is connected to what we were learning, Forces and Motion. The ice was smooth so the ice had less friction. For example, the carpet would have more friction, meaning that you can’t slide on the carpet comparing to the ice rink. I should have talked more
This Mind Map on the top is all about the Newton’s 3 Laws of Motion.
The first law is an object in motion will stay in motion, and an object at rest will stay at rest unless an unbalanced force acts on it. For example, if you are driving a car, when it stops suddenly, the things on the car will fall off. That is when the unbalanced force acts. Friction is a resistance caused by any two objects in contact and it always act in the opposite direction of that force.
The second law is when an object that has an unbalanced force acting on it will accelerate in the direction of that force. Every time, Gravity pulls the mass toward the centre of the Earth. The upward normal force of the ground is pushing up against Gravity(two forces cancel out) so that means that you will not move. When you go on a slide, Gravity wins because of the angle. Gravity wins and you accelerate. In this example, There was net force always acting and making it accelerate is a combination of the normal force and the Gravity.
The third law is force always occur in equal and opposite pairs. If you push a door, it pushes right back at in with equal force. The door was on the one that moved because friction between a person’s feet and the normal force and the gravity.
On Friday, Dec 9th and on Monday, Dec 12th, we did our morning meeting as usual but at the Green Roof !!! It was the first time having a morning meeting on the green roof. It was really fun to go outside and do morning meeting because the wind was very comfortable than the classroom. I felt free when we went to the green roof because there was no roof and the I was really relaxed than being inside the classroom. I think our class should go to the green roof more so our classmates can have a relaxed time every day.
Also on the last period of Friday, there was an assembly and we planned to get the Cup Of Good Choices. We really worked hard on getting it. When the assembly finished, the secret judge (Ms Glazier) said our class worked really hard on getting the Cup Of Good Choices so they gave us the Cup of Good Choices. We were the first on getting the Cup Of Good Choices in Grade 4.
On the December 1st, we did a challenge to make a boat and make it move across the basin. The boat needed to hold one marble. The boat also had to move by the wind. I was put into a group of three. We only had 15 minutes to make the boat. We used paper and cut them into pieces and we also used cardboard, tape and a stapler.
The first thing that went well is that it moved really quickly. But really, I think it didn’t really go well. Our group succeeded the challenge but some parts it didn’t go well. Firstly, the sail was tilted because the tape that held the sail wasn’t strong enough to hold the big large sail. Secondly, the boat almost sank because the water got into the cardboard on the bottom of the boat (as you can see from the picture). I found it difficult because there was only 15 minutes to create the boat. It was also hard because it also took time to decide what the design will be. I can improve on to our group’s boat by making the base of the boat bigger so the sail can be stable. We should have use the plastic bag to cover the cardboard. For this activity, I enjoyed looking at other group’s boats because it was really different from our design.
This picture on the mind-map is all about the Buoyant force, Gravity, Fluids, Volume and Displacement.
A Buoyant force is an upward push that fluids give to any object you toss in. The Buoyant force don’t resist force the way solids do. It is because the gravity pushes it back when you hit a solid block. It doesn’t seem that when you put your hands inside a liquid (water), the force is reacting to your hand. But in reality, fluids do react. For example, When you dunk a beach ball into a pool, it takes a lot of effort. But when you let it go, it’s lifted by the buoyant force. Fluids are any substance that flows or that have on fixed shape. For example, like water and other liquids. Also, when you put a solid block in a pool, it slowly sinks to the bottom of the pool. When you weigh an object that is in the pool, it is as twice as light on the ground.
When you put something in a pool, some water moved to make room for the object. It’s easier to see in a cup of water. For example, if you put a cube of ice into the water, the water rises to make space for the ice cube to be inside the water. That is called Displacement. Displacement means that the displaced water and the object take up the same amount of space. Meaning that the Volume is exactly equal. A volume is a the amount of space that an object or a substance fills; the amount of space that a container has. The thing is that if an object weighs 125 lbs (on land) – 70 lbs (in water) = 55 lbs (the water that is displaced). In the past, a famous person named Archimedes’ Principle discovered that the buoyant force is equal to the weight of water an object displaces.
This mind map on the top is a mind map that I have created in BrainPOP. I made a mind map about Gravity. A long time ago, famous scientists like Sir Lsaac Newton knew that Gravity is all about Mass and Distance. For mass, Massive planets/objects exert a stronger pull than less massive objects. Mass is also about the amount of stuff in a object and the weight. The weight is the force exert an object mass by gravity. For distance, objects that are far apart exert less gravitational force on each other than objects that are close together. Albert Einstein found out according to
Einstein’s theory of general relativity, Massive objects actually bends space and time. Changing onto another topic, at the moon, an apple weighs one-sixth as much as it does on Earth. Astronauts can jump six times high on the moon as they at Earth. They are both have one-sixth differences at Earth and Moon because the moon is only one-sixth the size of the Earth. There is also a thing called tides. Tides are when moon’s gravity pulls at the Earth, causing tides.
This picture on the top is a mind map that a made on Brainpop. This mind map tells about the different types of the force. One of the type of the force that I learnt is Magnitude. Magnitude is the size of the force and a direction of the force. Net Force is the unit to measure the force. If you were in a car there will be able to feel the force in speedup, slowdowns and turns. That is called unbalanced force. The word velocity is means not speeding up or down. Same as not moving and the Net Force is 0. A contact force is a force that two objects are touching each other. A non-contact force is a force that is invisible, like Gravity, Electrical Force and Magnetism. Gravity is a invisible force that pulls things down. For example, it pulls the tables, chairs, pencils, and etc. Gravity acts through a field. The gravity gets weaker the farther you get from their source.
I have used the Brainpop MAKE-A-MAP to make the map on the top