Instead of planting them in soil, I decided to plant the beans in plastic bags with wet paper towels so I could measure the root. There, systems would convert the microwave energy back into electricity and feed it into the nation’s power grid. It is usually corroborated a stimulating effect on the growth and development of plants subjected to static magnetic fields, but inhibitory action in the case of variable magnetic fields (Martínez et al., 2003). Explore plant behavior in this cool botany science fair project and learn about phototropism! Microwaved Seeds. Warning - you are about to disable cookies. Microwaves derived from solar power and transmitted by orbiting satellites to electric power stations on Earth may someday enable U.S. energy self-sufficiency, but is this method safe for local plant life? 0000010372 00000 n This tiny living thing gets its nutrients from the cotyledon, which is the fleshy part of seed. Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration. "Also measured are gross plant variables, such as stem length and overall vigor," he said. I had computer troubles in uploading this -- 6-minute videos apparently take longer than an hour to export, which is good to know. What about their structure causes this variation? At the same time, nearby 'control plants' are not subjected to microwaves. Background: Hydrodistillation is a current method to extract plant essential oils which is time consuming. "Alfalfa begins to flower in late September, when we begin to get shorter days in the Northern Hemisphere, and we will end the experiment then when the plants are getting ready to winter.". To switch between accounts click on the account below. If no seeds have started sprouting, rewrap and check again every day until you see germination. "Our hypothesis is that plants exposed to microwaves will be no different from those plants that are not exposed to microwaves," Skiles said. Does microwave radiation affect the growth of a lima bean seed? "This prototype experiment will provide preliminary results based on a 14-hour artificial day and constant temperature." It also proved to me that microwave radiation can affect the life of a plant so they aren't always good for food. 1). This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction. Make creases in the paper towel pieces by folding them into thirds, each 6 cm long. Each day for two weeks, I measured how much each seed grew in centimeters and recorded the data. 0000001813 00000 n I labeled the bag and taped it to the window. Skiles also is preparing to conduct a longer, 6-month experiment in a rooftop greenhouse at NASA Ames starting in late spring. xmlns:xsl='http://www.w3.org/1999/XSL/Transform'">. Even at 120 seconds the seeds had some growth of .75 centimeters after the 14 day duration. Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed. "Long-duration mixes of plant species experiments as well as testing single plant species for response to microwaves under stressful conditions, including plants from a desert ecosystem, will be future tests," he said. ames-releases-request@lists.arc.nasa.gov. Microwaves derived from solar power and transmitted by orbiting satellites to electric power stations on Earth may someday enable U.S. energy self-sufficiency, but is this method safe for local plant life? Write “0 seconds” on a label and place it on the foil packet. In prior assessments, the NRC had indicated that it was premature to pursue this field of R&D," Skiles said. A few days late, but here it is! Germination is an intricate process, and many factors, including lack of water or strong chemicals, can prevent it. "We expect that the microwave intensity at ground level will be about a million times less than that in a typical microwave oven.". A satellite system would convert the electricity into microwaves and beam them to receiving antennae on the Earth’s surface. Skiles has designed a series of experiments to test the effects of weak microwave illumination on plants at 2.45 GHz frequency. Repeat the procedure microwaving radish seeds for 30 seconds, 1 minute, 2 minutes, 4 minutes, and 8 minutes. The National Academy of Sciences qualified its recommendation that a space solar power project is feasible by stating that NASA should partner with other government agencies such as the Department of Energy, Skiles said. <<8CB56143FD21E448937C595BFA9D9417>]>> Skiles also is preparing to conduct a longer, 6-month experiment in a rooftop greenhouse at NASA Ames starting in late spring. You may suffer from “Microwave Sickness” Impaired cognition Nausea Vision problems Depression and irritability Weakened immune system Headaches Dizziness Insomnia and/or sleep disturbances Frequent urination and extreme thirst "We are going to duplicate the prototype experiment in natural sunlight, and we will have night and day temperature changes that will give us more realistic environmental values," he said. Additionally, all the beans received the same amount of water through the paper towel. Solar cells on the satellites would change energy from sunshine into electricity. If the 0 seeds have started sprouting, check the other seeds. startxref Plant response to microwaves at 2.45 GHz. %%EOF The National Academy of Sciences qualified its recommendation that a space solar power project is feasible by stating that NASA should partner with other government agencies such as the Department of Energy, Skiles said. Both the test plants and the control plants are subjected to the same temperature and lighting regime, and they are grown in the same size pots in the same kind of potting mix. The plant height, root length and biomass %, all have decreased. All of the beans also changed colors after being microwaved and then planted. I predicted this because the radiation and heat would make the molecules in the seeds move faster to grow. Your control group of seeds that weren’t microwaved will show you how long sprouting takes under normal conditions. A few days late, but here it is! 0000003623 00000 n A 'control' in a scientific experiment is something used as a standard for comparison. Don’t be discouraged, real science is all about trial and error! A possible explanation for why seeds microwaved a short time sprouted more than the control seeds is that the heating opened the seeds' coats a tiny bit, allowing water in and starting germination sooner. To unsubscribe, send an e-mail to the same address with "unsubscribe" in the subject line. 0000001661 00000 n Cut six rectangles of paper towel, 18 cm x 15 cm. 0000000016 00000 n This absorbed energy can warm up your food, but what effect would it have on a radish seed? The one thing that would have helped my experiment would be doing the experiment a different time of year when the sun is shining more often. A 'control' in a scientific experiment is something used as a standard for comparison. 0000000656 00000 n Don’t forget this step! And at that altitude, they are continuously in sunlight. During his current prototype experiment, Skiles broadcasts microwaves over a tray of alfalfa plants in a laboratory. Do NOT let balloon touch sides of oven. "One of our main questions is how organisms will respond to sustained microwave exposure because the beam from space will be on all the time," said scientist Jay Skiles of NASA Ames Research Center in California’s Silicon Valley. A germinating seed has a baby plant, called an embryo, on its surface. Germination inhibition of undesirable seed in the soil using microwave radiation : Effect of microwave radiation on seed mortality of rubber vine (Cryptostegia grandiflora R.Br.