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Petri dish

Radish Seed Growth Lab

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Radish Seed Growth Lab Report 9/28/14 Problem: What is the effect of the amount of vinegar on radish seed growth Independent Variable: Amount of vinegar Dependent Variable: Radish seed growth Hypothesis: If there is more vinegar, then the radish seed growth would be less than water because vinegar is not ideal for plant growth. Materials: Vinegar, water, radish seeds, petri dishes, paper towels, ruler, scissors, tape Controlled Variables: Same light Same amount of liquid Similar environments Procedure: Cut out paper towel for each petri dish Put in the petri dishes Cut three pieces of tape On one write Water and put on a petri dish On another write Vinegar and put on a petri dish On the last one write Water/Vinegar and put on a petri dish

Airborne Pollution

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Emma Mashburn Mr. Knapp APES April 24, 2013 Airborne Particulate Lab Follow up Questions A fine course particle is less than 2.5 micrometers in size and is easily inhaled deep into the lungs. A course particles is greater than 2.5 micrometers but smaller than 10 micrometers Fine particles can cause increased respiratory systems, decreased lung function, and aggracated asthma. Five examples of particle pollutants are soot, windblown dust, aerosols, pollen, and insect body parts.
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