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Plant Experiment

Plant Experiment . Johnny and Tommy Block 1 Sept. 18, 2008. Problem Identification. Do plants grow faster using microwaved water?. Hypothesis. We think that if you water a plant with microwaved water it will grow slower than a plant watered with regular water. Water Microwave

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Plant Experiment

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  1. Plant Experiment Johnny and Tommy Block 1 Sept. 18, 2008

  2. Problem Identification Do plants grow faster using microwaved water?

  3. Hypothesis • We think that if you water a plant with microwaved water it will grow slower than a plant watered with regular water.

  4. Water Microwave 18 bean seeds 6 pots Dirt Graduated cylinder Paper Ruler Writing utensil Data tables Tape or marker for labeling pots Materials

  5. Experiment Procedures • Label one pot A1, one A2 and one A3. • Label another pot B1, one B2 and the last one B3. • Fill each pot ¾ full of dirt. • Plant 3 bean seeds in each pot. Placing each one ½ inch into the soil. • Microwave 60 mL of water until it boils. Let cool. • Water the A plants with 20 mL of regular tap water every other day. • Water the B plants with 20 mL of microwaved tap water every other day.

  6. Experiment procedures continued • Record in a data table the date experiment began. • Watch for germination. When the seed begins to grow record plant height daily. • Measure the seed that begins to grow first and ignore the other seeds in that pot. • Record data daily.

  7. Data for Plant A

  8. Data for Plant B

  9. Analyzing Data Growth of Plant A Height in Cm Plant Height in Cm

  10. Analyzing Data Growth of Plant B Height in CM Plant

  11. Controls • We used the same amount of water on each plant. • We used the same containers and same kind of dirt for all plants. • We used the same kinds of seeds. • All plants were placed in the south window.

  12. Variables • We used microwaved water for plant B and regular tap water for plant A.

  13. Pictures of Experiment

  14. Plants watered with Tap Water Mean: 18 + 16 + 18 = 52/3 = 17.5cm Median: 16, 18, 18 = 18 Range: 18-16 = 2 Plants watered with Microwaved water Mean: 16 + 13 + 12 = 41/3= 13.66 Median: 12, 13, 16 = 13 Range: 16-12 = 4 Mean, Median and Range

  15. Draw Conclusions • We found that the plant watered with microwaved water grew slower and less tall than the plants watered with tap water. The ones watered with tap water also germinated first. • Our conclusion is supported by the mean, median and range of our data. • We found the mean to be 17.5 for the plant grown in regular water and only 13.66 for the microwaved water. This supports our hypothesis that regular water will grow larger plants. • The range between the plant A was smaller which shows that there was more even growth in those plants. The B plants grew at a much different rate and also took longer to germinate. • If we were to grow plants again or in a garden we would use regular tap water.

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