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    irradiated seeds
  • Marian
  • 05/07/2008
  • My son is using the seeds for his Nuclear Science merit badge. We are still in the process of growing ours but they have started to come up. It will be interesting to see if there is a difference compared to the control group. There were lots of seeds. We certainly didn't need all of them.
    good results
  • Kathy Ruiter
  • 02/05/2008
  • We used the irradiated seed set for BJ 7th grade life science. It took the seeds several days to sprout, so we really didn't see much difference between the control and the irradiated seeds for 10 days, with the best differences at two weeks. But the boys were impressed at the fewer, whimpy, strange plants that were growing from the more irradiated seeds. It sparked a good conversation on our need to avoid radiation (sun/skin, unnecessary x-rays, ...) We only used 10 seeds out of each packet; donated the rest (lots of leftovers) to a school.

    reward points

    Seed set, irradiated radish

    Ages 11+

    Item# LM-SEEDIRR

    $38.95 in_stock

    In Stock

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    Product Overview
    These irradiated radish seeds have been exposed to a Cobalt-60 source to demonstrate the effects of varying degrees of radiation on plant growth.

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    • Product Details

      Seed set, irradiated radish

      These irradiated radish seeds have been exposed to a Cobalt-60 source to demonstrate the effects of varying degrees of radiation on plant growth. You get five packets of seeds with at least 50 seeds per packet. One packet is untreated for control purposes, demonstrating normal plant growth. The other four packets are each exposed to different levels of radiation: 50,000 rads, 150,000 rads, 500,000 rads, and 4,000,000 rads.

      Plant health changes brought on by irradiation are often clearly visible a short time after germination begins.

      Science Fair Project Ideas:

      • Does sunlight vs. natural light have an effect on how the seeds grow?
      • What are the best growing conditions for the control seeds? Experiment with soil types, how much to water, sunlight, etc.

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