Presented by Rachna Bhagat Sergio Lopez

Heat and Temperature Day 1 Introductory Activity Start class by asking students to answer the following question; “Why is so hot in Las Vegas”? Make sure you justify your answer. (Give them about 5 min).

Class Discussion After the 5 min. bring the students together and discuss their answers. Analyze their answers to see what concepts they have. Use their correct answers to introduce the topic of “Heat and Temperature”

During the discussion, on the board write their answers to the question, even the answers that are incorrect, and have them write it on their notes. At the end of the lesson on the second day, the class will go over the answers and determine if they are correct.

Vocabulary Builder In their Vocabulary booklets the students will make 4 columns, and define the words: Heat Temperature Kinetic Energy

Exploration Lab: “Can you Take the Heat” Challenge: Why, or why not, does one drop of boiling water at 100 o C burn your hand? Note: Students will collect data as the water boils (optional).

Guided questions for exploration lab: 1.Why, or why not, does one drop of boiling water at 100 o C burn your hand? 2.Would you burn your hand if you poured the entire beaker of 100 o C of boiling water on your hand? Why or why not? 3.What is being transferred from the water to your hand? 4.How does energy transfer from the water to hand or form any one object to another?

Reinforcing Vocabulary In their Vocabulary booklets, the students will write in their own definitions for the words, and draw a picture to describe each word: Temperature Heat Kinetic Energy

Analyzing & Closing Activity Discuss heat, temperature, kinetic energy, with respect to the heating of water.

DAY 2 Introductory Activity Read article about the factors that affect the temperature in Las Vegas. Make a concept map using the factors that heat the Las Vegas Valley.

Vocabulary Builder In their Vocabulary booklets the students will make 4 columns and define the words: Conduction Convection Radiation

Challenge: Melt an Ice cube in 100ml of water at room temperature and boiling water at 100 o C Boil 100ml of in a beaker and record the temperature as water is boiling. Remove beaker when temperature has reached 100 o C. Record the time it takes for ice to melt in each beaker.

Analysis What makes the water on the heating plate hot, and its temperature rise? How is energy being transferred from: (a) heating plate to beaker (b) beaker to water (c) water to thermometer (d) water to thermometer Describe the color of the hot plate after boiling the water. What form of energy transfer is causing the heating plate to change color?

Reinforcing Vocabulary In their Vocabulary booklets, the students will write in their own definitions, and draw pictures for the words: Conduction Convection Radiation

Synthesizing & Closing Activity The students will answer the original journal question “ Why is it so hot in Las Vegas”? again. They will compare this answer with the original answer to determine, if it was correct or incorrect?

Student Misconceptions Heat is a substance which can be added to or removed from an object. (misconception) The sensation of coldness is due to transfer of cold toward the body. (misconception) Heat is the opposite of cold.

NV Science Content Standards P.12.C.5 Students know the relationship between heat and temperature. I/S Prior Knowledge: P.2.C.2 Students know objects can be described as hot or cold relative to another object. I/L P.5.C.4 Students know heat can move from one object to another by conduction, and some materials conduct heat better than others.E/S P.8.C.5 Students know heat energy flows from warmer materials or regions to cooler ones through conduction, convection, and radiation. E/S

CCSD Syllabus Objective 7.1 The student will differentiate between heat and temperature. 7.2 The student will discuss the kinetic molecular theory of matter. 7.3 The student will describe how heat is related to molecular movement. 7.5 The student will illustrate the three methods of heat transfer

Justification Students will learn that heat is the transfer of energy from an area of high energy to low energy. Temperature is the measure of the average kinetic energy. Heat can be transfer by conduction, convection, and radiation.