130 likes | 138 Vues
Do different colors absorb. different amounts of heat?. Purpose. Which color absorbs the most heat?. Hypothesis. I think the dark blue cup will absorb the most heat. Materials. For this project I used: Six different color cups 45 watt flood lamp Digital Thermometer Measuring cup
E N D
Do different colors absorb different amounts of heat?
Purpose Which color absorbs the most heat?
Hypothesis I think the dark blue cup will absorb the most heat.
Materials For this project I used: • Six different color cups • 45 watt flood lamp • Digital Thermometer • Measuring cup • 150ml water per cup
Procedure • Step 1: Gather the materials that you will need for this experiment. • Step 2: Fill each cup with 150ml of water • Step 3: Place all cups under the lamp so all the cups will receive the same amount of heat. • Step 4: Measure the starting temperature. • Step 5: turn on the lamp and wait 90 minutes.
Step 6: Measure the temperature of each cup • Step 7: Record your results • Step 8: Repeat steps 2-7 two more times to make sure your results are accurate. • Step 9: Calculate the average temperature for each cup.
Variables Manipulated: The color of the cup Responding: The temperature each cup reaches Controlled: Amount of water, time under the lamp, placement of cups (so each cup receives equal amounts of heat)
Results Starting Temperature: 6.6° C
Conclusion The color that absorbed the most heat was the blue with an average temp. of 22.3°C . The color that absorbed the least amount of heat was the white, with an average temp. of 18.9° C. My hypothesis was correct.
Sources of Error Three sources of error would be: • The starting temperature may have been slightly different for each cup. • The cups may not of received the same amount of heat. • The amounts of water may not have been equal.
Ways to Improve Three ways to improve are: • Make sure all starting temperatures are the same. • Use a bigger lamp so all the cups receive equal amounts of heat. • Find a more accurate way to measure the water.