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Using Plants in Science Experiments - List of Ideas

Plant Leaves and Leaf Anatomy Leaves are the sites of photosynthesis in ..

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Ideas for teaching photosynthesis for kids in lower ..


-Observed “Quantum coherence”, a phenomenon that describes electron’s movement in wave patterns.
-Experimented by purifying the photosystems of cryptophytes, a type of photosynthetic algae.

Here is a list of our experiments ..



Until the end of the 17th century, people believed that little animals like flies andworms could spontaneously be born from substances in decomposition or from mud. FrancescoRedi, Lazzaro Spallanzani and Louis Pasteur made experiments which proved the idea of thespontaneous generation was wrong. At your home or in your school you can made suchexperiments too.
1 - Take two glass jars with a screw top. Put in each a little piece of cooked apple and aspoon of vinegar. For a night, leave one of these jars opened so it can be visited byvinegar (fruit) flies. Close the other jar with the lid and sterilize it by placing it inboiling water in a pressure cooker for a half an hour. After removing it from the cooker,let it cool, leaving it closed. The morning after, let the possible bugs present into thefirst jar leave and then close it with a fine gauze or a plastic sheet on which you willmake some pinholes to allow oxygen to enter. After a few days, you should see some bugs inthe first jar, and none in the second one. What has happened in the first jar which hasnot happened in the second? Some vinegar flies laid eggs in the first jar and from themsome new flies are born. In the second jar, even if there had been eggs, these are deadbecause of high temperature in the pressure cooker. More eggs were not laid because thejar was kept closed. With experiments like this one, you can realize that living beingscannot born from nothing, but they are born from other organisms like them. Fall is themore suited season to do this experiment because vinegar flies are particularly active.
2 - Anyway you can try to adapt this experiment to organisms present at other times of theyear. For example, if you place some dry grass in a water glass, in few days a deal ofprotists will appear. If instead you will put the same material in a close glass pot andif you boil it, nothing will be born. Only some rare thermoresistant microorganisms,bacteria which resist the high temperature of boiling water.
... Uhm, and still there is something which is not working: if any living being comes fromanother living being, from where has come the first living being from which all others arederived? Can we consider completely falsified the theory of the spontaneous generationwith these experiments? Is it possible to assert that, even if the spontaneous generationis not the usual way with which living creatures are born, at least at one time duringbillions of years it has happened on the Earth or another place in the Universe? It is noaccident that there are scientists who study how life began in the first place.
Spontaneous Generation
Spontaneous Generation
Internet keywords: spontaneous generation.

Elodea Plant Photosynthesis Experiment

Photosynthesis [photosynthesis: The chemical change that occurs in the leaves of green plants



An ecosystem consists of the whole community of living organisms (biocenosis), the abioticcomponent of a certain environment (biotope) and their relationships.
The relationships essentially consist in a flux of substances which pass from thenon-living components to living ones and in a flux of energy which passes from thephotosynthetic organisms (plants) to the herbivorous animals, then to carnivores. Thewastes and the dead organisms are then decomposed by the micro-organisms which brake downthe substances back to simple components, in a full cycle.
1 - With a shovel in a field or in a wood, dig a square hole of about half a meter (1 1/2feet) square and about 40 cm (18") deep. Describe the non-living components of thesoil and all forms of life you find: roots, earthworms, snails, centipedes, spiders,crickets, etc. To complete the description of the ecosystem of the soil, look forinformation on the role of each of these organisms and the relationships with the otherforms of life of this environment.
2 - In similar way you have studied the soil ecosystem, you can analyze other ecosystemssuch as the ones in a forest, pond, shore, or desert.
G. and L. Durrell (2) can be useful, or there are many other books on this matter.
An Illustration of a Soil Ecosystem
Protocols for a Soil Ecosystem Approach for Characterizing Soil Biodiversity
Internet keywords: soil ecosystem.


In its simpler form, this experiment is particularly suited to elementary schools.
1 - Put some beans in a little jar containing some moist cotton wool. Keep the jar closedto maintain the humidity. Every day pull out the cotton and observe the state of the seedsand measure the length of their roots.
2 - Students in junior high schools or high schools can try to evaluate the influence ofparameters such as temperature, light and nutrients on the speed of germination of theseeds. If seeds are placed in gelatin, it is possible to observe the germination withoutextracting them from the jar.
3 - You can also collect seeds of different plants and determine their vitality (percentof seeds which germinate) as a function of time to harvest.
Exploring Seed Germination
Germinating Seeds on Gelatin
The Great Seed Mystery For Kids
The Wonderful World of Seeds
Internet keywords: germination seeds student.

LabBench Activity Plant Pigments and Photosynthesis

Germination PPT with a cress seed experiment activity included and a seed dispersal IWB. Both more suited to KS2 Photosynthesis PPT more suited to KS2 for a …

[6] von Mayer was able to compile a series of ideas from previous scientists to come up with his theory Julius von Sachs -Proved that the green pigments in chlorophyll were responsible for photosynthesis
-Light intensity on plants will affect the formation and storage of starch.

[6] As of this point, it is thought that the increase in plant mass comes from water, soil and carbon dioxide Julius Robert von Mayer -Proposed the idea that plants convert the energy emitted by the Sun into chemical energy known as photosynthesis.

Germination PPT with a cress seed experiment activity included and a seed dispersal IWB. Both more suited to KS2 Photosynthesis …
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  • Photosynthesis Lab Walkthrough — bozemanscience

    Photosynthesis for Kids

  • Science Experiments on Environmental Education and Biology

    The increase of O 2 in the photosynthesis experiment also indicates that from SCN 1300 at Babson College

  • Photosynthesis Worksheets - Homeschool Den

    by Theresa Knapp Holtzclaw

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Germination, Seed Dispersal and Photosynthesis by …

We exhale the carbon dioxide that plants need for photosynthesis.



Many scientists contributed to the discovery and understanding of photosynthesis throughout the ages; in this page are outlined some of those crucial milestone experiments that contributed to this effort.




Jan Baptista van Helmont, Flemish physician, chemist, and physicist, in the 1600s carried out a famous experiment by growing a willow tree in a pot for five years.

Science Fair Project Resource Guide - Internet Public …

Plants absorb water through their roots, and carbon dioxide through their leaves. Some glucose is used for respiration, while some is converted into insoluble for storage. The stored starch can later be turned back into glucose and used in respiration. Oxygen is released as a by-product of photosynthesis.

Finding an idea for your project can be the hardest part

The is a plan that is followed in performing a scientific experiment and writing up the results. It is not a set of instructions for just one experiment, nor was it designed by just one person. The scientific method has evolved over time after many scientists performed experiments and wanted to communicate their results to other scientists. The scientific method allows experiments to be duplicated and results to be communicated uniformly.

Many students have sent us questions on topic ideas

Animals that consume plants also make use of this energy, as do those that consume those that consume plants, and so on to the top of the food chain.

As important a job as making all of the world's food is, there's another vital function that photosynthesis performs: It generates the oxygen that oxygen-breathing animals need to survive.

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