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Radish Lab

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Introduction
In this experiment, radish seeds were exposed to several different kinds of solutions (salt, soap, vinegar, fertilizer, distilled water) to test how different environmental pollutants affect seed germination. Because there are several kinds of solutions being tested in this experiment, there is more than one hypothesis. The hypotheses for this experiment are as follows: The use of fertilizer solution increases radish seed germination and growth. The use of salt solution decreases radish seed germination and growth. The use of soap solution decreases radish seed germination and growth. The use of vinegar solution decreases radish seed germination and growth. Distilled water increases radish seed germination and growth. My prediction …show more content…

Next, place filter paper into the top of the petri dish. Using a pipette, pour 5ml of a solution onto the filter paper, making sure that it is completely soaked. Then, spread 10 radish seeds evenly across the filter paper. Place a second piece of filter paper on top of the seeds in the petri dish. Again, using a pipette, soak the second piece of filter paper with 5ml of a solution. Put the bottom piece of the petri dish onto the top piece. Move the petri dish to an area where it cannot be disturbed. Repeat procedure with each solution. When the procedure has been completed with each solution, stack the petri dishes and tape them together. Let the petri dishes sit for seven days. After seven days, open the petri dishes and examine the seeds. Record the data in a table. Repeat procedure seven …show more content…

The seeds soaked in the salt solution did not have any change in appearance while the seeds exposed to the vinegar solution generally appeared to become darker in color and shriveled. For the 10% fertilizer solution only one replication produced germination (6 out of the 10 seeds in the petri dish germinated). The seeds that did not germinate for the 10% fertilizer solution appeared darker in color. Seeds exposed to distilled water (control) had germination across every replication group and produced some fairly large sprouts. The 10% soap solution seeds also had germination in every replication group, but the size of the sprouts were not as large as the ones in the control group. Figure 1 on page 4 is a table that shows the number of seeds germinated across all replications, including the different concentrations of the solution. Figure 2 on page 4 is a bar graph showing the number of seeds germinated across the replications for the following solutions:10% Salt, 10% Vinegar, 10% Soap, 10% Fertilizer and Distilled

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