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Penny Experiment Lab Report

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Penny Experiment Lab Report
Purpose: Can the penny hold more drops of water or more drops of the MYSTERY liquid?

Research: Cohesion- The state of sticking together. Pennies can hold more water because soap reduces the cohesion of water and the water molecules break apart and can't stay on the penny.
Hypothesis:
The penny will hold more a larger number of drops of water because water is more cohesive than the “mystery” liquids

Variables: Independent variable: Penny Dependent variable: Number of Drops of Water Control variables: Penny, pipette, paper towel size, same scientist

Materials:
Penny
Pipette
Water
Mystery liquid
Paper towel

Procedure:
Step 1: Rinse a penny in tap water and dry completely.
Step 2: Place the penny on a DRY paper towel.
Step …show more content…
3-4
The student is able to correctly collect and present data in numerical and/or visual forms, accurately interpret data and describe results, state the validity of a hypothesis based on the outcome of a scientific investigation, state the validity of the method based on the outcome of a scientific investigation, state improvements or extensions to the method that would benefit the scientific investigation.
5-6
The student is able to correctly collect, organize and present data in numerical and/or visual forms, accurately interpret data and describe results using scientific reasoning, outline the validity of a hypothesis based on the outcome of a scientific investigation, outline the validity of the method based on the outcome of a scientific investigation, outline improvements or extensions to the method that would benefit the scientific
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