Grade 4 unit 1 lesson 1
- 1. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 Measuring Tools Matter It is anything that has a mass and volume. Or It is everything that has a mass and occupies a part of space. Mass It is the amount of matter that the object contains. Volume It is the space that is occupied by the object (matter). Give reasons: 1) Air is matter. Because air has mass and volume. 2) Paper is matter. Because paper has mass and volume. 3) Water is matter. Because : To deal with some matter, we must measure their length, mass or volume. 1 – Length To buy shoes, We must know the length of your foot. To buy cloth, We must measure the length of cloth. M r.Ahm ed ElBasha
- 2. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 Length The measuring tools The measuring units 1 – Centimetre (Cm) For measuring small lengths as pen or book. 2 – Meter (m) For measuring large lengths as dimensions of your classroom. 1 meter (m) = 100 centimeters (cm). 3 – kilometer (km) For measuring very large lengths as Distance between Cairo and Alexandria. 1 kilometer (km) = 1000 meters (m) 1 – ruler. For small lengths 2 – Graduated tape. For large lengths Exercise : COMPLETE : 1) Units of measuring length are ………… , …………… and …………. . 2) 5 meter (m) = centimeters (cm). 3) We use …………………… to measure length of long objects. Write the scientific term: 1) Everything that has mass and volume. (……………….) 2) The space occupied by an object. (………………..) 3) The amount of matter in an object. (…………..) M r.Ahm ed ElBasha
- 3. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 2 - Mass Did you try to buy banana?! How much did you buy?! Mass The measuring tools The measuring units 1 – Gram (g) Measure small masses such as jewelry. 2 – kilogram (kg) Measure large masses such as fruits and vegetables. 1 kilogram = 1000 grams. 3 – Ton Measure masses of heavy objects like cars. 1 Ton = 1000 kilograms. 1 – common balance (two-pan balance) For things like tomato and cheese. 2 – Sensitive balance For tiny (small) objects like gold and chemicals. Exercise : Mention the use of: 1) Common balance: Measures the ……………. of large masses. 2) Sensitive balance: Measures the ……………. of small masses. 3) Graduated tape: Measures the ……………. of long objects. M r.Ahm ed ElBasha
- 4. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 3 – Volume Did you buy milk before?! How many liters did you buy?! Volume The measuring tools The measuring units The ways (methods) of measuring the volumes 1 – Estimating the volume of liquid (water): A: pour an amount of water into graduated cylinder. B: record the reading at lower level of water surface. ** your eyes must be in horizontal position with lower point of liquid surface to get right reading. The correct reading is 40 1 – Liter or milliliter For measure volumes of liquids only. 2 – the cubic meter (m3) or Cubic centimeter (m3) For measure volumes of solids and liquids. 1 liter = 1000 milliliters (cm3) 1 – A graduated cylinder It measure volume of liquids as: ((water , oil , milk ….. )) Or an irregular solid body. 2 – A ruler that measures the dimensions of a regular solid body. M r.Ahm ed ElBasha
- 5. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 2 – Estimating the volume of solid body ((regular or irregular)). B: Irregular sold bodyA : Regular solid body It must be insoluble in water as: ((Stone or marble)) * using ruler here is not correct way!! Cuboid as a box or a book: Measure the length , width and height of the book by a ruler. Put piece of stone in graduated cylinder containing water. We can calculate the volume of book by relation: Volume = length × width × height. Steps of measuring the volume of irregular solid body ( insoluble in water ) 1 – pour amount of water in graduated cylinder and recored volume of water (V1) 2 – put a piece of stone carefully in the cylinder and recored new volume of water + stone (V2) 3 – the volume of stone = V2 – V1 = …………….. cm3 Take care When you put stone in a cylinder full of liquid , the liquid is spilled out !! M r.Ahm ed ElBasha
- 6. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 Problems: 1 – find the volume of a brick , knowing that its length = 20 cm and its width = 10 cm and its height = 5cm Answer Volume of brick = length × width × height = 20 × 10 × 5 = 1000 cm3 2 – when we put a piece of marble in graduated cylinder containing 30 cm3 of water the level raised to 50 cm3 . What is the volume of the marble? Answer Volume of the marble = V2 –V1 = 50 – 30 = 20 cm3 Calculate: 1) A pencil case, 30 cm in length, 10 cm in width and 3 cm in height. Calculate its volume. 2) A graduated cylinder containing 50 cm³ of water. If we place a key under water, the volume of water becomes 70 cm³. Calculate the volume of the key. M r.Ahm ed ElBasha
- 7. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 The relation between volume and mass of matter Equal volumes of different substances have different masses!! Activity : to prove the equals volumes of different substances have different masses. Steps: Get two cubes of iron and wood have the same volume. Put them in the two pans of common balance. Observation: The iron cube has larger mass than wooden cube. Conclusion: Equal volume of different substances have different masses. Question??! The opposite two balls have the same volume!! 1 – are the two balls have the same mass?! 2 – which one will have larger mass?! Glossary ﻣﺪرج ﻣﺨﺒﺎرGraduated cylinderاﻟﻤﻠﻤﺲTexture ﻣﻨﺘﻈﻢ ﺻﻠﺐ ﺟﺴﻢRegular solid bodyﯾﺸﻐﻞOccupy ﺻﻠﺐ ﺟﺴﻢﻣﻨﺘﻈﻢ ﻏﯿﺮIrregular solid bodyطﻮلLength ﺗﻘﺪﯾﺮEstimatingﻣﺎدهMatter اﻗﻞ ﻣﺴﺘﻮيLower levelاﻟﺤﺠﻢVolume ذاﺋﺐ ﻏﯿﺮInsolubleﯾﻘﯿﺲMeasure ﯾﺼﺐPourﻛﺘﻠﮫMass اﻓﻘﻲHorizontalﯾﺘﻮاﻓﻖDeal اﻟﻌﺮضWidthاﺑﻌﺎدDimensions ﯾﻐﻤﺮSubmergedﺻﻐﯿﺮهTiny ﯾﻨﺴﻜﺐSpilled outﻣﺠﻮاھﺮاتJewelry ﯾﺴﺠﻞRecordﻛﯿﻤﺎوﯾﺎتChemicals اﻟﻤﻌﻤﻞLaboratory M r.Ahm ed ElBasha
- 8. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 Questions on lesson 1 Complete the following statements: 1 – measuring ruler is used for measure ……………………………… 2 – matter has ……………………….. and ………………………….. 3 – all matter are similar in occupying a space and this means that they have the same …………………… 4 – the length can be measured by some units as …………………..and …………………….. 5 - ………………….. is suitable unit to measure the length of your pen. 6 - ……………… unit is used to measure small lengths, while ………………. Unit is used to measure very large lengths. 7 – four meters = ………………… centimeters. 8 - …………………. Is used to measure the distance between Carlo and Alexandria. 9 - ……………….. is used to measure mass of chemcical materials and gold. 10 - ……………….. unit is used to measure the mass of very big objects like cars. 11 – common balance used to measure ………………… 12 - ………………………….. is used to measure the volume of orange juice. 13 – the liter unit is used to measure the ……………………..of liquids. 14 – cubic meter is the measuring unit of ……………………… 15 – 1 liter = ………………… milliliter 16 – 3 liters = ……………………. Cm3 17 –the volume of a book can be calculated by multiplying ………………….. × …………………….. × …………………… M r.Ahm ed ElBasha
- 9. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 Choose the correct answer: 1 – milk has ………………….. A; mass only b. volume only c. length d. a and b 2 - …………………… are the measuring tools of length. A: graduated cylinder. B. sensitive balance C: graduated ruler or tape. D: two pan balance . 3 – five meters equal ……………. Centimeters. A: 200 b. 500 c. 20 d. 5 4 - …………….. is used to measure very small masses in lab. A: ruler b. sensitive balance c. tow pan balance d. glass 5 – gram and kilogram are units that measure the …………………. Of any object. A: length b. mass c. volume d. height. 6 – the jeweler uses ………………… to estimate the mass of jewellery. A: conical flask b. graduated ruler c. sensitive balance d. two pan balance . 7 – the measuring cylinder can be used to determine the …………………… A: volume of liquids. B. volume of irregular solid body c. mass of regular solid body C: a and b 8 – two liters of water equal ……………… liters of milk. A: 5 b. 2 c. 3 d. 4 9 – the volume of sold material is measured by ……………….. unit. A: cm b. cm2 c. m2 d. cm3 10 – we can determine the volume of an irregular small stone that doesn't dissolve in water by using …………........ A: glass beaker b. measuring cylinder c. common balance d. graduated ruler. 11 – if the dimensions of your science book are 5 , 4 and 3 cm, so the volume of book = ... cm3 A: 60 b. 120 c. 100 d. 80 12 – if you put a piece of iron in 50 cm3 that completely filled with water, a quantity of 20 cm3 is spilled out, so the volume of or iron piece = ………………… A: 30 cm3 b. 20 cm3 d. 5 cm3 c. 25 cm3 14 – all the following objects are made of iron , which of them has the least volume? M r.Ahm ed ElBasha
- 10. Science – Grade 4 – 2017/2018 Mr.Ahmed ElBasha 01153233911 Correct the underlined words: 1 – three meters = 100 centimeters 2 – common balance is used to measure volume of objects. 3 – graduated tape is used to measure mass of fruits and vegetables. Give reasons for : 1 –a glass is a matter ? ………………………………………………………………………………… 2 – air is matter ? ……………………………………………………………………………….. 3 – the car has a volume? ………………………………………………………………………………… Mention the use of : Graduated tape ………………………………………………………………………………… Sensitive balance ………………………………………………………………………………… Graduated cylinder ………………………………………………………………………………… Define the following: Matter : ……………………………………………………………………….. Mass: …………………………………………………………………………. Volume : …………………………………………………………………….. Problem: Look at the figure , then complete: the volume of irregular solid body = ……………………. My wishes, Mr. Ahmed Elbasha M r.Ahm ed ElBasha