Download to read offline
HEAT TRANSFER-CONDUCTION for grade 7 students
- 1.
- 2. ALMIGHTY FATHER, WEPRAISE AND THANK YOU FOR THIS DAY. WATCH OVER US AS WE GO ABOUT OUR WORK AND STUDIES. HELP US IN EVERY WAY SO THAT WE MAY BECOME THE CHILDREN YOU WANT US TO BE. AMEN.
- 4.
- 5.
- 6. Pass the box:Students pass the mystery box around while the music is playing. When the music stops, the student holding the box must draw a mystery picture from inside.
- 7. Answer the question: Eachmystery picture is accompanied by a question related to the picture. The student who drew the picture must answer the question aloud to the class.
- 8. Repeat: Once thestudent has answered the question, the box is passed around the circle again while the music plays. The process repeats until all picture in the box are drawn.
- 14.
- 20. CONDUCTI ON H E AT T R A N S F E R
- 23.
- 24. Rubric Scoring 95-100 The groupwas able to demonstrates a clear and accurate understanding of heat transfer through conduction and provides correct answers to all guide questions.
- 25. Rubric Scoring 90-94 The groupwas able to demonstrates a good understanding of heat transfer through conduction and provides mostly correct answers to guide questions.
- 26. Rubric Scoring 85-89 The groupwas able to demonstrates a basic understanding of heat transfer through conduction and provides some correct answers to guide questions.
- 27. CAUTIO N BE CAREFUL WHEN HANDLINGHOT OBJECTS TO PREVENT BURNS OR
- 30. CONDUCTI ON H E AT T R A N S F E R
- 31. Conduction is thetransfer of heat from a region of high temperature to a region of low temperature through direct physical contact CONDUC TION
- 32. Conduction is amode of heat transfer that occurs due to the vibrating and colliding particles of objects that are in direct contact. CONDUC TION
- 33. The direction ofheat transfer in conduction is always from the hotter side to the colder side until both sides reach thermal equilibrium. Heat transfers from a region of higher temperature to a region of lower temperature. COLD HOT
- 35. Heat flows fromhot to cold regions as hotter molecules with higher kinetic energy collide with neighboring molecules, transferring energy.
- 37. THERMAL CONDUC TIVITY Thermal Conductivity isthe ability of materials to conduct heat. The higher the thermal conductivity means that the material is a good conductor of heat
- 38. Material Conductivity W/m·K (Wattsper meter Kelvin) Silver Copper Gold Aluminum Stainless steel Glass Concrete Water at 20°C Rubber Polypropylene Plastic Wood Air at 0°C 429 401 318 237 15 1.7 1.1 0.6 0.16 0.25 0.04 -0.4 0.025 Table 1: List of thermal conductivities of common materials
- 45. When he touchedthe alarm clock
- 46. When he steppedon a sun-drenched floor
- 47. When he openedthe stove to heat the water
- 48. When he pouredthe hot water to the cup
- 49. When he touchedthe hot coffee cup
- 50. When he sitson the sun-drenched chair
- 51. When he touchedthe hot toast
- 54. ASSIGNMENT list down anyexperience showing how conduction of heat helps us in our everyday life. Write your answers to your notebook.