* How It Happens and the Different Types ©Copyright 2014 – all rights reserved www.cpalms.org * What happens to the temperature if I add ice cubes to a glass of soda? * Write your answer down in your notes. * Image Source: http://upload.wikimedia.org/wikipedia/commons/c/cf/Tu mbler_of_cola_with_ice.jpg * How many of you wrote that the ice cubes make the soda cold? * Image Source: http://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Ice_ cubes_openphoto.jpg/640px-Ice_cubes_openphoto.jpg * What if I told you that ice cubes do not make soda cold? * In fact, it is the soda that warms up the ice cube! * Image Source: http://pixabay.com/p-48867/?no_redirect * When will the heat transfer between the soda and the ice cubes stop? Why? * Write your answer down in your notes. * Image Source: http://upload.wikimedia.org/wikipedia/commons/9/9d/Question_mark_blue.png * How many of you wrote, “When the ice has finished melting?” * Please share your answers. * Image Source: http://photomatt7.files.wordpress.com/2012/02/hands-up-color.gif * When the ice has finished melting, the temperature has increased. * When the ice was added to the soda, the temperature of the soda decreased. * The ice continued to melt until the soda and the ice reached the same temperature. * This is because heat transfer continues until both objects have reached the same temperature. * When the two objects have reached the same temperature, this is called Thermodynamic Equilibrium. * * * In your notes, number a set of lines 1-5. * You will be shown a series of pictures. The pictures will show objects between which heat transfer will occur. * On your paper, draw an arrow showing which direction the heat will transfer in. * Image Source: http://pixabay.com/p159904/?no_redirect Cool Air Image Source: http://upload.wikimedia.org/wikipedia/commons/6/64/Light_skin_an d_hair.jpg Warm Skin * Image Source: http://pixabay.com/p159904/?no_redirect Cool Air Since the skin has a higher temperature than the air, the skin transfers heat to the air around it, making itself cooler. Image Source: http://upload.wikimedia.org/wikipedia/commons/6/64/Light_skin_an d_hair.jpg Warm Skin * Image Source: http://upload.wikimedia.org/wikipedia/commons/9 /9f/Pahoeoe_fountain_edit2.jpg Lava Image Source: http://upload.wikimedia.org/wikipedia/commons/c/c1/Bare_m ountain,_nevada.jpg Mountain * Image Source: http://upload.wikimedia.org/wikipedia/commons/9 /9f/Pahoeoe_fountain_edit2.jpg Lava Since the lava has a much higher temperature than the mountain, it transfers heat to the mountain wherever the two make contact. Image Source: http://upload.wikimedia.org/wikipedia/commons/c/c1/Bare_m ountain,_nevada.jpg Mountain * Image Source: http://pixabay.com/p29492/?no_redirect Student Image Source: http://pixabay.com/p308101/?no_redirect Chair * Image Source: http://pixabay.com/p29492/?no_redirect Image Source: http://pixabay.com/p308101/?no_redirect Chair Student The typical human body is around 98.6 degrees Fahrenheit, whereas a chair is usually room temperature, 75 degrees Fahrenheit. When the two come into contact, heat transfers from the student to the chair. That’s why the chair feels cool. * Image Source: Erika Trnka Apollo the Lizard Image Source: http://pixabay.com/static/uploads/photo/2013/07/12/17/12/sun151763_640.png The Sun * Image Source: Erika Trnka Apollo the Lizard Heat will transfer from the Sun to the lizard. There is nothing on Earth hotter than the Sun, and besides: lizards are exothermic! Exothermic: getting body heat from an outside source Image Source: http://pixabay.com/static/uploads/photo/2013/07/12/17/12/sun151763_640.png The Sun * Image Source: http://upload.wikimedia.org/wikipedia/commons/f/fd/1950s_Sitting_Room_(6 320021131).jpg Image Source: http://photos1.blogger.com/blogger/3504/1968/400/Lightbulb.png Light Bulb Air in a room * Image Source: http://photos1.blogger.com/blogger/3504/1968/400/Lightbulb.png Light Bulb When a light bulb gives off light, it also gives off heat. This heat warms up the surrounding air. If you place your hand near a light bulb (don’t touch!), you will feel the heat. Image Source: http://upload.wikimedia.org/wikipedia/commons/f/fd/1950s_Sitting_Room_(6 320021131).jpg Air in a room * * Step 1: Partner A looks at question one and shares the answer with partner B. * Step 2: Partner B either approves of the answer, or guides partner A to the correct answer. * Step 3: Once an answer is agreed upon, Partner A asks, "May I write it down?" * Step 4: Partner B either agrees or provides further coaching until a correct answer is agreed upon. * Step 5: Partner A picks up the writing utensil and writes down the answer. Then Partner A hands the writing utensil to Partner B, and the steps repeat. * If these instructions are not followed, you will complete the work by yourself. *