Phase+Changes

 The student will be able to identify changes of state as it relates to temperature change, energy exchange, and particle movement.

 5.03 Identify substances through the investigation of physical properties:
 * Melting point
 * Boiling point

 -Review what we know about each state of matter using an online mind mapping tool -Preform an activity to experience phase changes -Collect data and record observations in a collaborative document -Asses what was learned in the lesson

 Ice Water Thermometer for each group 400mL beaker for each group Hot plate

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=Part 1=

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1) Now that we have had a good review of the 3 main states of matter (notice I said MAIN, there are actually 5 states of matter.....any smarties know the other 2.....bonus.....) go to [|text2mindmapcom] . =====

 Kyle
= Part 2 =

 When you feel comfortable that you know the difference between the 3 states click on the discussion tab and add a message post.
=Part 3=

Equipment:

 * 1) =====hot plate =====
 * 2) =====400 ml beaker =====
 * 3) =====thermometer =====
 * 4) =====stirring rod =====
 * 5) =====ice water =====

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 Be very careful with the hot plates, glassware and water. If you want to check if it is warm, put the top of your hand ABOVE it. Hot glass does not look any different from cool glass. **Safety goggles must be worn at all times throughout the lab.** =====

<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Procedure:

 * 1) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Add 200 ml of ice water (with ice cubes) to the empty beaker. =====
 * 2) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Verify your hot plate is off and cool. Make sure the bottom of your beaker is DRY. =====
 * 3) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Place the beaker on the hot plate. =====
 * 4) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Adjust the ring stand clamp so just the bulb of the thermometer is below the water surface. =====
 * 5) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">After the readings have stabilized, record the temperature of the ice water. =====
 * 6) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">You may wish to stir the water, but be very careful not to touch the thermometer. =====
 * 7) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">After one minute, measure and record the temperature again. =====
 * 8) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Turn on the hot plate and set it to 80% of maximum. =====
 * 9) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Measure the temperature every minute until the water starts to boil. =====
 * 10) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Take three more temperature readings (3 more minutes) after the water is boiling. =====
 * 11) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Turn off the hot plate and unplug it. Do NOT touch the beaker. =====

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<span style="color: #008000; font-family: 'Comic Sans MS',cursive;"> Graph the data you have gathered with the IV on the x-axis and the DV on the y-axis. Refer also to the lab report format section on graphing. =====
 * 1) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Label the point on your graph when the all the ice was melted . =====
 * 2) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">Label the point on your graph when the water started to boil. =====

<span style="color: #008000; font-family: 'Comic Sans MS',cursive;"> Refer to the lab report format and write a conclusion for this lab. Be sure to discuss:

 * 1) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">the water temperature while the ice was melting. =====
 * 2) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">the water temperature after the ice melted, but before it started boiling. =====
 * 3) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">the water temperature as the water was boiling. =====
 * 4) =====<span style="color: #008000; font-family: 'Comic Sans MS',cursive;">how could the temperatures plateaud while still adding energy? =====

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<span style="color: #008000; font-family: 'Comic Sans MS',cursive;"> Get a copy of the instructor's typical data set graph (time vs. temperature readings). If your graph doesn't resemble the this graph, remember to address this in your error discussion. =====

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<span style="color: #008000; font-family: 'Comic Sans MS',cursive;"> **Here is the link to the Google Form for your Lab Report: [|Lab Report Template]=====

=Part 4=

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