how to make esence from plants?
452101
First off, it is essence.  Secondly, it would vary depending on which extract you wanted.  You need to know what "aroma" you wish to get out from the plant(s).  After you know that, you need to figure out the structure, then you can develop of means of extrapolation of the essence.
82715
Anything with plants would be easy to do.  You can study just about anything... photosynthesis, plant hormones, genetics.  For example, you could design an experiment to determine which color of light will grow the tallest plant.
117711
>>>1. Plant medicine\n>>>2. Dry completely\n>>>3. Grinding\n>>>4. Methanol extraction\n>>>5. Filtration using Watmann No. 5 filter paper\n>>>5. Concentration with rotary evaporator\n>>>6. Suspend in distilled water\n>>>7. Partitioning\n>>> 1) partition with hexane\n>>> 2) partition with n-butanol
533016
plants use the sunlight to turn nutrients into sugars to feed the plant they also take the toxins away from the plant when they go brown and drop off. Carbon dioxide and oxygen are released from them.
122360
design it just like any other plant, however this is realyl complicated.  I bet you 10 points nobody answers this correctly.
115131
right! plants have the ability to produce their own food. They get essential nutrients from the sun's rays and from the soil. When plants get certain elements and/or nutrients from its major surroundings, it is therefore able to convert the nutrients into food; making the plant survive with no dependence from us.
295022
Lots of Sun. Keep the plant in gravel, sand or loose soil. Depending on which desert the plant came from here's how to determine how much water to give it:\n1. FInd out which months it usually rains in that desert and feed the plant accordingly.\n-or-\n2. Every three weeks or so give the plant a fraction of the entire amount. (Not advised if the soil dries out quickly.
620203
Make it. Boil up some rose petals. Strain them and then add fresh ones to the existing water.
922712
there is a whole science that adresses exactly what you mention\nWATER HARVESTING\n,dig small dams every where to cath the rain water, and you can archieve that all of the rain water is absorbed by the land ,it will seep slowly into the ground to add to subteranean water suplies ,make sure that all the dams are interconnected by slow gradient ditches .just because you dont see water ,does not mean that it is not there .\nNormally a land repels water and with the rains it runs over ground into the rivers and awy.\nthink now that you want to make the land receptive or absorbent of all the water that falls on it.\n\nMULCH\ncut down the weeds before they produce seeds and leave them where they fall,they will cover the ground and put even more organic matter on top,you can use saw dust,leaves green or dry,and when you plant make a little space and plant in the mulch.this is the easiest quickest and by far most benificial way(for the quality of you soul)to prepare the land for planting\n\nto prevent weeds from coming all you have to do it turn out the lights,you can even use cardboard or black plastic(this is good for strawberries because they will rot if they touch humid ground,and the bugs can get to them).\n\nwhat you do is to cover the ground with mulch which is the same principal as compost but it includes the whole garden surface\nthe top part of the soil where the topsoil is being produced houses a world or microbiotic life.\n\nMulch is organic material green or dry that covers the ground,the thicker the better the composting process will turn it in to black topsoil\n\nthe humidity is preserved underneath and promotes the devellopment of worms(their exists no better compost than their excrements)and a variety of micro biotic life which together with the mulch produce more topsoil.\n\nthe mulch also keeps the ground temperature even and guards against the impact of the rain ,which would other wise brings salt to the surfave if on unprotected land\n\nMulch also prevents the soil from drying out because of the sun and, lay it open to wind erosian.\n\nand it turn out the lights for any weeds that want to come up\ndo not use chemicals because the water will wash them into the ground and if enough people did that, you would be guilty of helping to contaminate subteranean water suplies that other people could be pumping up to drink \n\nSUSTAINABLE FARMING\nthe best examples on this Earth of sustainable agriculture,\nare the chinampas of central Mexico ,the surviving ones(that have not been consumed by urban devellopment)have been going for more than 800 years ,that is sustainability.\nthe are built from the mud of the lakes and enriched with compost ,in the old days with the toilet contents of the outhouses that were on the bridges going into town,which the indians collected with a canoo.\n\nAnother example are the traced gardens of the Inca which have been going for more than a thousand years,there success is also because of the principle of using compost and their form which id a receptive concave absorb the rain waters and collect the dust from the wind (for hundreds of years and so increase in quality instead of the oposite.\nin the Ukraine are also examples of ancient agriculture due to no till farming and mulching(green organic matter that is added)\n\nin Mexico today are still examples from old Indian agricultural practises of diversity or companion planting.\nwhere by a series of 7 or 8 species of plants are put together or one folows the other.to create biodiversity ,and utilisation of space.\nCorn is planted for example ,wich is followed 4 weeks later by a bean that climbs it.\nand agavi and edible cactus is on the sides to protect these plants from foraging animals and add chemicals to the soil by their secretions.and others are in between to provide groundcover\n\nthere are many forms of sustainable farming in the past,and today those who follow the principles of permaculture,no till farming,organic or sustainable farmin
133727
gather some leaves. put them in a metal drum after wetting them. wait until the leaves are decomposed - what remains is a compost fertilizer
652769
Galvinisation with zinc. \n\nChroming\n\nboth work off the basis of reduction and their poteintal to be oxidised\n\nlook in an chemistry A-Level text book. Or if your american look at a college text book, for exact details
352887
Search at these sites.  It can be done, but it is usually not economical.\n\nhttp://www.scirus.com/srsapp/\n\nhttp://www.scienceresearch.com/search/
908302
http://www.google.com/search?hl=en&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=plant+propagation&spell=1\n\nhttp://forums.gardenweb.com/forums/load/propa/msg0212575212518.html?2\nhttp://www.sciencenetlinks.com/Lessons.cfm?DocID=22\nhttp://classroom.all-science-fair-projects.com/forum/showthread.php?t=1161
1084762
Are you talking about plants?
984892
Paper mache? Cut an opening and fill it with clay to form shapes for organelles??
479477
In green leaves, containing chlorophyll.\n\nPlants make their own food using a process called photosynthesis. During photosynthesis, the chlorophyll-containing green parts of the plant trap light energy and use it to perform a series of chemical reactions. The process involves carbon dioxide, and so plants also need plenty of air. We usually rely on the sun to provide light for our plants.
174137
Buy a bottle of Tabasco sauce, mix with one gallon of water, strain mixture using a cotton cloth, pour into a spray bottle, then spray the trees well with the mixture. Repeat mothly......KECK