Wednesday, January 28, 2009

Standard 5, Objective 3 for 3rd grade science is to demonstrate that heat may be produced when objects are rubbed together. There are differences in the amount of heat given off depending on different surfaces and conditions. To explore this concept, we use probes to measure temperature and record the data on the computer as a line graph! First, we measured the temperature of our hand. At a resting rate, our hand’s temperature was approximately 78 degrees Fahrenheit. Then we rubbed our hands together, creating friction to see if the temperature of our hands would increase. Using the probe, we found that the temperature of our hand increased to 79.6 degrees! We rubbed lotion on our hands and found that the temperature surprisingly went back down! To experiment with different surfaces, we tested a sweatshirt and white board erasers. The coat was about 77 degrees before we rubbed it together. After rubbing the coat together, the temperature rose to 80 degrees. We also rubbed the two erasers together and this produced a temperature of 82 degrees! Integrating technology into your curriculum enhances your lessons, and kids have fun! Using these probes gave students the opportunity to graph data and do tests to discover the unique facts about friction and heat production!

1 comment:

  1. Please be sure to include "Tech Savvy Teacher" in the title of your article.

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