Its for my science project
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Yes sure:\n\nAll plant cells have a cell wall. Young growing cells, some storage cells and the photosynthesizing cells of leaves, all parenchyma cells have only a primary cell wall. The primary cell wall is thin and formed while the cell is undergoing growth. The cell wall surrounds the protoplast [cell membrane and all its contents]. Continuous pressure by the fluids inside the cell forces the cell membrane against the cell wall. Between the primary walls of adjacent cells is the middle lamella which cements the two cells together by means of an adhesive substance called pectin. Mature cells which stop growing lay a secondary wall. \n\nThe primary cell wall\n\nThe primary wall begins to form between cells that are completing cell division. A cell plate forms where a new cell wall will divide the two daughter cells. The cell plate forms from the microtubules. Microtubules may guide materials towards the cell plate which grows to the outside by addition of materials such as pectin. Much of the materials that form the cell plate become the pectin-rich middle lamella between the two cell walls of the daughter cells. As soon as this middle lamella is formed cells release structural material to build the primary cell wall.\n\nThe primary cell wall is thin relative to the secondary cell wall and the entire cell. It is generally 1 to 3μm thick. It consists of 9 to 25% cellulose. Cellulose molecules are unbranched and are bound together by means of hydrogen bonding into long cylindrical fibres called microfibrils [4.5-8.5nm thick]. The microfibril is a polymer of glucose made up of 30-40 pairs of cellulose molecules.\n\nCellulose molecules are arranged in a parallel form and thus microfibrils have an incredible high tensile strength relative to their weight. This orientation allows cells to elongate, the microfibrils slip past each other and are pulled along the axis of the cell. Recent and older microfibrils are laid over each other perpendicularly as threads in cloth.\n\nThe cellulose microfibrils are embedded in a matrix composed of celluloses, pectin and protein. The matrix is composed mainly of hemicelluloses which from a branching network filled with water. The primary cell wall contains 25 to 50% hemicelluloses. Pectic substances make up 10 to 35 % of the cell primary cell wall. Primary cell walls also have 10% protein involved in cell growth and recognition of antigens.  \n\nThe primary cell wall is also adapted for growth. During growth, growth regulating hormones are produced. These soften the primary cell wall and the microfibrils layers [perpendicular] move apart and slide past each other in the wall filled matrix. This takes place with the aid of water which is absorbed by the protoplast thus forcing a pressure against the cell wall. Thus the wall is stretching plastically [irreversible] as the cell grows.\n\nWhen the cell stops growing and cell division is complete, synthesis of growth regulating hormones is stopped and the microfibrils become entangled losing the organized parallel orientation. Therefore the microfibrils can no longer slide past each other and thus the primary cell wall resists further growing by means of the entangled microfibrils which have a high tensile strength. This makes cell walls resistant to swelling if placed in water.\n\nThe primary wall is porous allowing passage of water and materials dissolved in water. The pores are about 3.5 to 5.2nm in diameter compared to the 0.3nm of the diameter of water molecules. The water and other materials can thus pass through the cell wall medium which is called the apoplast.\n\nLeaves and young stems are made up of cells that have mainly primary cell walls. They are rigid when water forces a pressure against the cell wall, but wilt when water is lost and internal pressure decreases. Thus water together with primary cell walls provides a hydrostatic skeleton. \n\nThe secondary wall\n\nIn many plant cells, a primary wall is not enough to withstand the extreme
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Here's a site with alot of different ideas and difficulty levels with instructions.  Maybe you can find something here.\n\nOr you can tell us more about what you are wanting to do and what you like and we might be more helpful on here.\n\nhttp://www.all-science-fair-projects.com/
73239
This doesn't really belong in Earth Sciences.  Biology or Botany are more specific categories for questions about living matter.  However, I'm in a good mood because it's Friday.  Check the link.
230623
http://www.sciencebuddies.org/ \n\nhope will help
604454
I don't know but, I suggest you put this in the "Physics" category if you want the best possible answer.
494918
This seems more like a physics question than a chemistry question.  I would try posting this in the physics section- someone will be able to help you there!
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Apparently so, but this is all I could find.  Next time start working on your project sooner :)\n\nhttp://www.all-science-fair-projects.com/science_fair_projects/40/511/876cb29d53dd2afebdeaadc98cecc049.html
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this might help\nhttp://www.sciencebuddies.org/index.htm?gclid=CNKB5o6Y4ogCFRZQTAodPm_rjw
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answers.com        -go to this site and you will get your answer
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I dont know kid, but you got one hell of a science project in the works!
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http://www.sciencentral.com/articles/view.php3?article_id=218391915&cat=2_4\n\nIs that what you are looking for?
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??????????????????????????
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just measure how much water they lose to the atmosophere some how and keep track of the amount of water you have added over a period of time. \nThis should be an interseting experiment.
352207
Here's a nice explanation:\nhttp://www.4to40.com/QA/index.asp?counter=382&category=science
565853
www.howstuffworks.com\nu may find somethin
594294
The question is too open. What experiment are you talking about? If you google science supplies you might find out, although since it's homework most people won't just give you an answer.
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i hope you realize that you could have typed that into google (or even looked it up in your science book) and got the answer quicker than it did for you to submit this question and then for someone to answer it