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Global Warming
Essay specific features
Written by:
Rebecca R
Date added:
April 9, 2011
Level:
Grade:
B
No of pages / words:
2 / 451
Was viewed:
8240 times
Rating of current essay:
Essay content:
After completing this lab we will be able to find the density of 2 liquids (water and rubbing alcohol) and a solid (block of wood).
Materials:
• Goggles
• Water
• Another liquid (Rubbing Alcohol)
• A block of wood
• A rock
• 2 10 mL graduated cylinders
• 100 mL graduated cylinder
• Ruler
• Dropper pipettes
• Electronic balance
Formula:
Density=mass/volume
Densities:
Water-
M= 7...
displayed 300 characters
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2mL
D= 30g/ml
Questions:
1. Calculate your % error for the density of the second liquid.
3.67%
2. Why does a helium balloon rise?
The helium in the balloon is less dense than the air outside, causing the balloon to float, or rise.
3. Why does ice float in water?
A substance floats if it less dense or has less mass...
displayed 300 characters
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