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The heat is on !!

  1. The Heat is On !! A Fourth Grade Lesson Understanding How Thermal Energy is Transferred
  2. Michigan 4th Grade Science Grade Level Content Expectations • S.RS.04.11 Demonstrate scientific concepts through various illustrations, performances, models, exhibits, and activities. • P.EN.E.1 Forms of Energy- Heat, electricity, light, and sound are forms of energy. • P.EN.04.12 Identify heat and electricity as forms of energy. • P.EN.04.42 Describe heat as the energy produced when substances burn, certain kinds of materials rub against each other, and when electricity flows through wire. • P.EN.04.43 Describe how heat is produced through electricity, rubbing, and burning. • P.CM.04.11 Explain how matter can change from one state (liquid, solid, gas) to another by heating and cooling.
  3. Michigan Educational Technology Standards Grades 3-5 TECHNOLOGY COMMUNICATIONS TOOLS By the end of Grade 5 each student will: 1. use basic telecommunication tools (e.g., e-mail, WebQuests, IM, blogs, chat rooms, web conferencing) for collaborative projects with other students 2. use a variety of media and formats to create and edit products (e.g., presentations, newsletters, brochures, web pages) to communicate information and ideas to various audiences
  4. Let’s Jump Start Your Thinking (What do we KNOW about heat?) • When we are outside, we can feel the heat from the sun • If we touch a hot pan with our bare hand we might get burned • When we sit by a campfire we get warm even though we are not touching the fire • Other ideas……..
  5. Lesson Objectives (WHAT do we want to know about heat?) • Students will understand that adding or removing heat from a substance can change its state of matter. • Students will identify conduction as a physical property of matter. • Students will recognize that thermal energy can be transferred from one object to another through conduction, convection, and radiation. • Other things we want to learn about heat……
  6. What is Heat? • The transfer of thermal energy from one piece of matter to another (Frank, 2000). • It is transferred naturally from hot matter to cold matter. – If you hold an icicle in your hand long enough it will melt – When you walk in hot sand, your feet get warm
  7. How is Heat Transferred? • Heat is transferred in three ways: –Conduction –Convection –Radiation
  8. What is Conduction? • The transfer of thermal energy by particles of matter bumping into each other (Frank, 2000). – Hot burner to metal pot – Hot sand to your feet – Hot cocoa to your cup – Warm hand to ice cube Other ideas….. Conduction Animation
  9. Conductors and Insulators • Conductors – materials that easily conduct thermal energy (Frank, 2000) – Metals – Copper Wire • Insulators-materials that don’t conduct thermal energy well (Frank, 2000) – Glass – Wood Conductors and Insulators Game
  10. What is Convection? • Convection is the transfer of energy by particles of a liquid or gas moving from one place to another (Frank, 2000). – Hot air is less dense and is forced up by cooler air – As the hot air cools, its density increases and it sinks – The process then repeats Convection Animation
  11. Examples of Convection • The air being heated from a fireplace • The air being heated from a furnace • Boiling water • The air being heated in a hot-air balloon Other ideas……
  12. What is Radiation? • The bundles of energy that move through matter and empty space are radiation (Frank, 2000). • Bundles of energy that transfer heat are called infrared radiation (Frank, 2000). Radiation Animation
  13. Examples of Heat Transfer by Infrared Radiation • The sun heating our skin • Warming your hands on the sides of a campfire • Heating Food with a Microwave Oven Other ideas……
  14. You’re the Expert Now (What did we LEARN about heat?) • Heat is the transfer of thermal energy from one piece of matter to another (Frank, 2000). • Thermal energy naturally moves from warm matter to cool matter (Frank, 2000). • Conduction and convection need moving particles of matter in order to transfer energy (Frank, 2000). • Infrared Radiation transfers thermal energy through matter and empty space
  15. Quick Quiz Conduction, Convection, and Infrared Radiation Name three ways that thermal energy is transferred. Thermal energy is transferred in liquids and gases through which type of heat transfer? A pan on the stove gets hot through which type of heat transfer? Convection Radiation
  16. Question of the Week (Wiki Work) You must go on the class Wiki and post a response to the weekly question.
  17. References Frank, M.S., Jones, R.M., McLeod, J.C., Krockover, G.H., VanDeman, B.A., & Valenta, C.J. (2000). Heat energy on the move. In Harcourt Science, Teacher’s Edition (pp. E40-E45). Orlando, FL:Harcourt School Publishers. K-7 Scholar Work Group (n.d.). Michigan fourth grade science grade level content expectations V1.09. Retrieved from /documents /mde/4-Science_COMPLETE_12-10-07_218319_7.pdf. Michigan State Board of Education (June, 2005). Michigan educational technology standards grades 3-5. Retrieved from /METS_3-5_129585_7.pdf.