Dearest 5/4,
Here are some videos for you to refer to regarding the different methods of seed dispersal.
Here are some videos for you to refer to regarding the different methods of seed dispersal.
Dearest 5/4, Here are some videos for you to refer to regarding the different methods of seed dispersal.
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Dear 5/4, After the introductory session for the topic of "Reproduction of Flowering Plants", lets look at the video below to learn a little more about the different parts of a flower and how they contribute to the function of reproduction. Below is the diagram that includes the different parts of a flower that you need to know. Note that you do not need to know the parts named pistil, stamen and sepals. The 7 parts that I have labeled for you below is enough. Here's a few videos to talk about some different types of pollination in plants! Pollination by insects Pollination by wind Below is a video that gives you more details about pollination and fertilisation of plants. Dear 5/2 and 5/4, Below are the 2 videos that you will view during the 2 days of PSLE Oral and do corrections for CA2 Revision 1A, 1B, 2A and 2B. Listen to my explanations and learn the concepts that will be relevant for your CA2 Science Exam on Tuesday! Dearest 5/4, Please use the video below to do corrections for your SA1 Science paper Dearest 5/4, Here are some videos that introduce to you the different types of cells around us, and also those that form out very own body! These are some very good videos that help you understand how living things around us are made up of these cells! These videos will provide valuable information for you before you become young scientists at the Singapore Science Centre next Wednesday! Here's a picture of an animal and plant cell for you to compare the structure of both cells and summarize the functions of the different parts of each cell. Now that you have been introduced to the different cells around us, lets examine the different parts of the cell and what they do! Hope that you had fun learning about cells. Now you're ready to go for the science centre lesson tomorrow! Lots of Love, Mr Edmund Dearest 5/4, Last week, we have learnt about how the human respiratory system helps our body take in oxygen and give out carbon dioxide. The oxygen that is taken in eventually ends up in the lungs of the human respiratory system. However, how does this oxygen get distributed to the rest of our body? The video below introduces the circulatory system, which is the transport system that helps to transport different materials all over our body. Watch the video to see how the circulatory system works together with the respiratory system to ensure that all parts of our body gets the oxygen that is needed! Note: The videos place some emphasis on the names of the 4 parts of the heart and the valves. You are, however, NOT required to memorize these parts. You only need to know that the heart is important because it pumps so that blood can travel all over your body through the blood vessels. This first video tells you about why the rate of heart beat, also known as the "pulse rate", increases when you exercise. It also gives you an explanation of how the circulatory system works. This next video allows us to view the circulatory system from the interesting perspective of a red blood cell. This video tracks the journey that the red blood cell takes as it is pushed through the entire circulatory system! After watching these 2 videos, I would like to point out a diagram of the circulatory system below. This diagram is important because it summarizes many important concepts of the topic of the Circulatory System. You will need to understand that after oxygen goes into our lungs when we inhale, that oxygen is transported to the heart first, and then transported to the rest of the body. After the muscles in the rest of the body goes through respiration, the carbon dioxide given out will be transported from the rest of the body back to the heart, and then back to the lungs to be exhaled from the respiratory system. Below is a diagram that maps out how blood carrying oxygen travels from the lungs to the heart and the rest of the body. After which, the rest of the body gets rid of carbon dioxide by transporting it back to the heart and then to the lungs to be exhaled from the respiratory system. Thanks for staying tuned. We will discuss this diagram again tomorrow!
Dearest 5/4, Welcome to our very first video lesson for Science! Following our classroom discussion about the human respiratory system, I have found some pictures and videos online that will offer clearer explanations of how the human respiratory system works. Lets first start off by reviewing the composition of the air around us. As we have discussed in class, the air around us is made up of many different types of gases like Nitrogen, Oxygen, Carbon Dioxide, Water Vapour, etc. From the pie chart below we can see that if we imagine our air to be the entire pie chart, we can see the % of air that is made up by Nitrogen and Oxygen and the other gases, showing that the air that we breathe is mostly made up of Nitrogen, followed by Oxygen. the 1% other gases includes Carbon Dioxide, Water Vapour and many other gases. Now lets view the first video! This 1st video above shows the parts of the human respiratory system that is important for you to recognize, because we may ask you to label the different parts during your tests. Take note: The video uses the term "bronchial tubes" but we only need to remember it as "air tubes". Now lets view the 2nd video! This 2nd video shows how different parts of our respiratory system work together to help us breathe in air (inhale) and also breathe our air (exhale). It is especially important to know how the diaphragm and the ribs move during inhalation, and also how the diaphragm and ribs move during exhalation. Now lets view the 3rd video! This 3rd video shows looks at a different respiratory system, that of a fish! While humans and most mammals have lungs to take in oxygen from the atmosphere, fish have gills to take in oxygen that has been dissolved in the water. Lets look at how a fish does it using its gills! Now lets view the 4th video! This one's pretty interesting! This 4th and last video is an interesting video that shows how we can make a model that represents the human respiratory system. The guy in the video cleverly uses a bottle to represent the human ribs, a piece of rubber to represent the diaphragm, and also 2 balloons to represent the human lung. You can make something like this yourself at home!
After viewing this last video, I have a question for you. While this model is a creative and interesting representation of the human respiratory system, there is one part of it that does not accurately represent the human respiratory system. Which part is it? We will discuss this in class tomorrow! Lots of Love, Mr Edmund P/S: You can also read more about it in your textbook pages 7 - 16! Dear 5/4, Welcome to our very first Science flipped video lesson! Firstly, lets re-watch the video that we have watched in class! Next, we have another video that explains in greater detail about how plants use a system of tubes to transport materials all over the plant! Some things to take note about this video: 1. You do not need to remember the term "Xylem". You can call it the "water-carrying tubes" instead. 2. You do not need to remember the term "Phloem". You can call it the "food-carrying tubes" instead. Below I have attached a cross-section view of the stem of a dicotyledon plant. Observe and take note the positions where the "water-carrying tubes" and "food-carrying tubes" are being located. Thanks for staying tuned! See you in class next lesson for some more fun activities!
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September 2016
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