Grade 5 Science Presentation PDF

PREPARED BY : MR. MOHAMED EZZ Grade 5 Science  LEARNING OUTCOMES 1-Identifying physical properties of matter. 2-Differentiating between Heat conductors and Non-Conductors. 3-Identifying Magnetic Properties. 4-Answering questions about Solubility.  KEY WORDS (DICTATION) Mass Cond...

PREPARED BY : MR. MOHAMED EZZ Grade 5 Science  LEARNING OUTCOMES 1-Identifying physical properties of matter. 2-Differentiating between Heat conductors and Non-Conductors. 3-Identifying Magnetic Properties. 4-Answering questions about Solubility.  KEY WORDS (DICTATION) Mass Conductors Magnets Brass Solubility  INTRODUCTION *You Will Know more about Properties of Different Matter & How can you tell them apart. Q:What is weight? -It describes how heavy something is. -Units : Kilograms (Kg) ; Pounds. Q:In science; how can we describe the weight of something? -Using the unit kilograms (Kg); people around the world use the same unit to tell about weight. Q:Different standard units describe the amounts of other properties, Explain? -Such as length and time. -Because everyone agrees on the amount that each unit stands for, you always know what the unit means. -Using standard units means that someone else-no matter where they live will be able to know the exact amount you refer to. Practice -You wouldn’t know the price of the food because the amount that you have to pay wouldn’t be connected to the amount of food.  -Color: Gray. -Rock -Shape: Irregular and rounded shape. -Hardness: Very hard. -Color: black. -Pencil -Shape: Rounded shape. -Hardness: Hard. -Color: blue. -Bottle -Shape: Rounded shape. -Hardness: Hard. -Color ; Shape ; Hardness. -Using sight and Texture. Practice at Home Note: -Every kind of material has properties. What is meant by Property -It is a characteristic of a material, such as its color and odor. -Some materials might have some properties that are the same as the properties of other materials. -But no two materials have the exact same set of properties. Q:How can you observe the physical properties of a material (Observing Properties)? -You can directly observe many of the properties of a material by using your senses to gather information about it. -Example: -You use your eyes to observe the color and shape of the materials in the building in the photo. -You use your ears to observe that a guitar string makes a specific sound. -You observe the hardness and texture of a rock using your sense of touch. -In the kitchen, you can observe the properties of foods by tasting or smelling them. Note: -When you observe something, you can use the information you gather to describe what you observed. Complete: -When you describe something, you tell about its properties. Apply Each material in the building has a unique set of properties. -Circle the material that has these properties: white, hard, smooth, and in the shape of a rectangle.  What are the Measuring Properties -You observe some properties by using scientific tools. -One way to use tools is to measure. (When you measure a property, you compare it to a standard unit, or value, for that property). Q:Each unit of measurement is recognized all over the world. Explain? 1-You might measure the length of an object using a meterstick. -The unit of measurement for length is 1 meter; If the object is 3 meters long, then the measured length of the object is 3 times the length of 1 meter. -The meter is the exact same length around the world. 2-When you measure the weight of an object, you use a balance or a scale. -The balance compares the weight of the object to standard weights. -Each gram mass is marked with a specific amount of grams or kilograms. 3-Another measurement is how much space a material takes up. -This property is measured in liters and milliliters.  Q:Compare Circle the gram mass on the balance pan that you think would measure the largest number of coins. -Texture. -Flammability. -Hardness. -Reactivity. Note : -Every material has physical properties that you can use to describe it. -You can use these properties to tell one material from another. Wood Steel Q:Can you TELL THEM APART? -These two blocks have the same length, width, and height. -One block is made of wood. The other block is made of steel. Wood Steel -Block A is wood; B is Steel. -Through comparing their masses and hardness. Note: -You can identify some properties directly by using your senses. -Other time, you may need to observe how a material acts with other materials or with energy. Q:Explain Heat Conductivity with Examples? -Heat Conductivity: Is a property of the metal is that it moves, or conducts, heat easily. -Example: -If you stir a pot of soup with a metal spoon, the handle of the spoon gets hot. -If you stir it with a wooden spoon, the handle does not get hot. -(a property of the wood is that it doesn’t easily conduct heat while metal conducts heat easily). Note: -Just as some materials transfer heat, some materials conduct electricity. Q:How can you turn the light on using a battery? -When you connect a light to a battery to make it shine, you use wires. -The wires are probably made of a metal called copper. (One property of copper is that it conducts electricity). Q:What happens If you connect the battery and light with string instead of a copper wire? -The light does not turn on. -That is because a property of the string is that it does not easily conduct electricity.  -Because plastic is insulator which does not easily conduct electricity. What are the Magnetic Properties -It is a property of materials is whether they are magnetic, or attracted to a magnet. Q:What are the uses of magnets? -Many people use magnets to hold notes on a refrigerator. -Many refrigerator doors are made from steel, which is magnetic. -The magnets sticking to the door are also magnetic. Q:What happens If the refrigerator were made from brass (Copper alloy) ? -The magnets would not stick to the door; Brass is not magnetic.  -If the refrigerator were made from Brass; The magnets would not stick to the door. -Brass is not magnetic. What is Solubility -It is a property of material that refers to how well it dissolves in another material, such as water. -Example: Salt is soluble in water while Pepper is not. Q:Give Reason why you cannot see the salt in the water, While you can see pepper in the water? -Because the solubilities of the two substances are different. -The salt dissolves in water while the pepper will not dissolve; The pepper does not appear to change at all. Note: -Some substances are more soluble than pepper but less soluble than salt. -The robot can identify the ingredients from solubility. -If the substance didn’t dissolve in water instead it formed layers in the bottle; the substance is oil. -If the substance dissolved in water (didn’t form a layer); the substance is not oil; it could be salt. -The 2 blocks of metal have different masses. -The thick cloth is a good heat insulator.  -Salt and Sand. -Solubility and Color. Science Lab Activity Color: Solubility: -Salt. White. Soluble. Color: Solubility: -Sand. Yellow. Insoluble. -It can use color recognition and solubility test. -If the substance is white Soluble in water; it Is salt. -If the substance is yellow insoluble in water; it is salt. Mr. Mohamed Ezz Leadership international school Science Department