| Have you ever heard of someone who used a light | | | | 5. Turn on the lamp and turn the light so that it is shining |
| bulb to keep their puppy or another animal warm. | | | | on the glass measure. |
| Well, there is heat that is produced from the energy in | | | | 6. Using the tape measure see how far away the |
| light bulbs. This science project will show how warm a | | | | thermometer and lamp are from each other and |
| light bulb can be in producing heat. | | | | record this information. |
| Materials you need for this project: | | | | 7. Let the lamp shine on the this for 5 to 10 minutes. |
| - A Lamp - you will probably need a desk style lamp | | | | Record the temperature at the end of your time. |
| that can bend different ways | | | | 8. Now you will test this with each light bulb to see |
| - Light Bulbs of different watt strength - 60 Watt, 75 | | | | how much heat is generated by each one. |
| watt, 100 Watt, 40 Watt and even 25 Watt | | | | Make sure to let the lamp and light bulb cool down |
| - A Thermometer - get one of the old fashioned kind | | | | before your change to the new one each time. Also |
| that are glass and have mercury | | | | make sure to shake your thermometer each time so |
| - A tape measure | | | | that it starts at the same temperature. In addition, |
| Instructions | | | | make sure to measure the lamp to thermometer |
| | | | distance each testing to ensure they are at the same |
| 1. Get a white towel and place it onto your counter top | | | | distance apart. |
| where you plan to do the experiment. Make sure your | | | | You will probably discover that with the higher watt |
| lamp can reach to this area safely while being plugged | | | | you get more heat. How much heat did you estimate |
| in. | | | | that could be produced by one light bulb in 5 minutes. |
| 2. Shake your thermometer so that the mercury | | | | Did you realize by this science project that there would |
| reading is down and lay it on one end of the towel. | | | | be much warmth from a bulb? Try this with a |
| 3. Take your lamp and set it on the counter or table at | | | | florescent bulb. You will probably find that they do not |
| the other end of the towel. | | | | produce hardly any heat. |
| 4. Read the temperature on your thermometer. | | | | |