Science Lab

Topics: Temperature, Specific heat capacity, Intensive and extensive properties Pages: 3 (493 words) Published: November 30, 2010
Purpose:
To find out the densities and to find out the name of the unknown metals. (Based on the extensive and intensive properties)

Check up the words mass, volume, density, extensive properties, and intensive properties. Where do the units for mass and volume) come from and what do they mean? What is the density of distilled water? What is Archimedes principle? Does temperature affect the density of a solid? Liquid? Gas?

Materials:
Safety glasses,
10, 25 or 50 mL graduated cylinders
Distilled water
Metal Samples W, X,Y & Z

Procedure:
1. Class split into 5 groups. Every group will get data for four metals and tell it to the class 2. Choose a metal sample for every group then pass it around between groups. 3. Set a number of your metal sample and record the mass in the table. 4. Get a gradated cylinder with distilled water, but not to much to make it over flow when sample is put in. Record the amount of water in the cylinder accurately 5. Then tip the cylinder to about 45 degrees then put sample into it slowly, DON’T spill any water or have to restart. Make sure no air bubbles are clinging. Then take down final volume of water cylinder. 6. Dump the water out, then dry sample off.

7. Repeat this over with the other metal samples.
*
Hypothesis:
* My hypothesis is that even though I will find the densities and names of the unknown metals its not going to be accurate because some water will spill out. Many people are going to come up with the different names because they aren’t care full enough. Mass of metal | | | | | |

Initial volume of water | | | | | |
Final volume | | | | | |
Volume of metal | | | | | |
ExperimentalDensity of metal | | | | | |
Group Data| | | | | |
| Metal W| Metal X| Metal Y| Metal Z| |

Class Data: Mass and Volumes of each groups’ metal samples| Lab Group| Metal W| Metal X|...
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