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| Found: 263 Entries
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Viewing 1 of 263 |
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| Title: |
How Low Can You Go? |
| Description: |
Here is a simple activity that allows the students to measure temperature changes of ice water over time. The addition of rock salt to the mix lowers the freezing point of the water, yet continued melting of the ice results in plummeting water temperatures. This activity can be used for a variety of lessons. The simplest of which would be to have the students collect data that can be plotted with a line graph. However, this can also be utilized to introduce the students to the concepts of endothermic and exothermic reactions, and the energy transfer that accompanies phase changes of water. |
| Key Words: |
temperature changes, freezing point, endothermic reactions |
| Grade Level: |
6th, 7th |
| Subject: |
Science |
| URL: |
http://antoine.frostburg.edu/chem/senese/101/solutions/faq/why-salt-melts-ice.shtml |
| View File: |
How Low Can You Go (Activity Plan).doc |
| View File: |
How Low Can You Go (Student Handout).doc |
| View File: |
Ice and Salt.swf |
| Teacher's Request: |
I would like an activity that has the students learn about the freezing point of water. |
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