Heat, temperature, Conduction

1. Heat, temperature, Conduction Oct. 31-Nov. 5

2. Key Concepts • Adding energy (heating) atoms and molecules increases their motion, resulting in an increase in temperature. • Removing energy (cooling) atoms and molecules decreases their motion, resulting in a decrease in temperature. • Energy can be added or removed from a substance through a process called conduction. • In conduction, faster-moving molecules contact slower-moving molecules and transfer energy to them. • During conduction the slower-moving molecules speed up and the faster-moving molecules slow down. • Heat is the transfer of energy from a substance at a higher temperature to a substance at a lower temperature. • Some materials are better conductors of heat than others.

3. Room temperature washers in hot water • When room-temperature washers are placed in hot water, the temperature of the washers increases and the temperature of the water decreases. • Energy from the water is transferred to the washers. • http://www.middleschoolchemistry.com/multimedia/chapter2/lesson1#heating_washers

4. Hot washers in room temperature water • When hot washers are placed in room-temperature water, the temperature of the washers decreases and the temperature of the water increases. • Energy from the washers is transferred to the water. • http://www.middleschoolchemistry.com/multimedia/chapter2/lesson1#heating_washers

5. Spoon and conduction • Heated Spoon • http://www.middleschoolchemistry.com/multimedia/chapter2/lesson1#heated_spoon • Cooled Spoon • http://www.middleschoolchemistry.com/multimedia/chapter2/lesson1#cooled_spoon

6. Conducting energy • http://www.middleschoolchemistry.com/multimedia/chapter2/lesson1#conducting_energy