Directions:
1. Gather your materials
a 2 identical cups
b. 2 cups of cold water
C. 2 ice cubes
d. Thermometer
e. Timer (stopwatch, phone, or google stopwatch and use that)
2. Pour 1 cup of cold water into each of your cups. Label 1 cup "ice"
and one "no ice"
3. Using the thermometer, measure the temperature of the water in each
cup and record in the data table under "initial temperature.” The
temperature of the water should be the same in both cups - If it isn't,
dump out the water and start again.
4. Place the two ice cubes in the cup labeled "ice"
5. Set the stopwatch/timer for 10 minutes.
6. When the timer goes off, measure the temperature of both cups and
record in the data table
7. Repeat steps 5 and 6 until all the ice has melted. Take one final
temperature reading after the ice has melted.
8. Make a graph of your data following the steps in analysis question 1
9. Answer all 7 Questions at the end of the lab sheet.
10. Submit your assignment to the 2.05 Lab Drop box

19. explain why a magnet from your refrigerator could not be used to lift something as heavy as a car. (chapter 7 – pages 202-203) 20. can a magnet ever have a single pole? explain your answer. (chapter 7 – page 208) 21. what happens to the wavelength of a wave if the frequency is increased? (chapter 9 – pages 280-281) 22. an ocean wave has a wavelength of 10 m and a frequency of 4.0 hz. what is the velocity of the wave? show the appropriate equation from your book and show your work with units. (chapter 9 – page 282) 23. as you sit outside, the sound of a siren becomes lower in pitch. is the emergency vehicle moving away from or towards you? explain how you know. (chapter 10 – page 315-316) 24. why are two astronauts in space unable to hear one another? (chapter 10 – page 307) 25. explain in at least 3 sentences how electromagnetic waves form. (chapter 11 – page 338-339) 26. using the chart on page 345 in your textbook, what are the three types of electromagnetic wave with wavelengths shorter than those of visible light. give an example of each. (chapter 11 – pages 345-351) 27. explain why a leaf usually appears to be green, but a rose typically appears red. (chapter 12 – page 373) 28. what is the difference in light that is refracted compared to light that is reflected? think in terms of speed of light as well as what happens to light waves when they interact with a medium. (chapter 12 – pages 369-370) 29. how are concave and convex lenses different? (chapter 13 – page 408-410) 30. what type of mirror is used in rearview mirrors in cars? why is it important that these mirrors have the warning, “objects in mirror are closer than they appear.”? (chapter 13 – page 405)

In general what determines whether atoms will form chemical bonds?

Does the asteroid belt revolve around the sun?