How do rocks form in water? What kind of lesson plan can I do?
142618
I found several good websites with ideas for lesson plans. They are below. I also included a website for you to show how rocks form in water. My first inclination was that you good gather different types of rocks, but I'm thinking that making "rock candy" would be a fun inexpensive way to show how they are formed. Same theory as how natural rocks are made. The water evaporates leaving behind the sedimentation of sugar on a string. I've included a recipe that I found online, but haven't tried it. I did make rock candy when I was younger. You maybe be able to find simpler recipes by doing a search on "making rock candy" or "rock candy recipe."  HOPE THIS HELPS!!
58110
It is quite simple really. There is no 'theory' as some of the posts have indicated. The earth is composed of a number of large plates, which move constantly (the Pacific Ocean today is spreading at 4-5 cm per year). As these plates move, they sometimes slide under one another. As this happens, the upper plate is lifted. This moves rock that was deposited in an ocean environment slowly upwards and often to the top of mountains. The process takes millions of years, so it is likely the rocks that contain the shells on the top of the mountain your husband refers to are tens of millions of years old, or older. \n\nA perfect example is Mount Everest, which has carbonate rocks (with shells) at the peak. Other examples are many parts of the Rocky Mountains in North America, and the Alps in Europe. The Sierra's in California also contain carbonate rocks in many places that did in fact originate in what is now the Pacific Ocean. It is not rare and not mysterious or theoretical. \n\nThe names of these processes, in case you want to learn more, are plate tectonics (previously called continental drift), subduction (one plate under another), orogeny (mountain building), and carbonate sedimentology( deposition of carbonate rocks).  I'm including some links with basic explanation of the concepts. \n\nAnimated illustrations of plate tectonics:\nhttp://www.ucmp.berkeley.edu/geology/tectonics.html\n\nIllustration of subduction:\nhttp://www.platetectonics.com/book/page_12.asp\n\nOrogeny:\nhttp://www.uwgb.edu/dutchs/platetec/orogeny.htm\n\nCarbonate sedimentology (great pictures of carbonates in mountains (sea shells):http://epswww.unm.edu/sed/home.htm\nOther carbonate sedimentology links:\nhttp://www.unige.ch/sciences/terre/geologie/w_groups/carbonate_sedimentology/webmain.html\n\nIf you want to see my explanation for how sea shells form in the ocean go to this question:\nhttp://answers.yahoo.com/question/index;_ylt=AiyMjODIRNiCqQ3uGA0_ICPsy6IX?qid=1006011004317
5994
I would recommend two options:\n\n1) Get hold of a copy of 'First Things First' by Stephen Covey. It is around the notion of important and urgent and how one can identify these on a daily and weekly basis\n\n2) A simple story which might help you in saving some time instead of reading the book :)\n\nA teacher comes into class one day with a glass container full of big rocks and asks the class if the container was full or not?\n\nThe students say Yes after which the teacher gets some gravel and pours it into the container through the rocks.\nTeacher: "Is the container full now?"\nStudents: "Yes"\n\nthe teacher now gets some sand and pours it into the container which slips in through the rocks and gravel.\nTeacher: "Is the container full now?"\nStudents: "Absolutely Yes "\n\nTeacher gets water and pours it into the container which slips in through the rocks, gravel and sand to eventually fill up the container.\n\nMoral of the story: Identify the rocks in your life (or day) and get them in first - everything else can adapt. Imagine trying to get anything in to the container if  one started with water!
786689
Sedimentary rocks are formed at the surface of the Earth, either in water or on land. They are layered accumulations of sediments: fragments of rocks, minerals, or animal or plant material. Temperatures and pressures are low at the Earth's surface, and sedimentary rocks show this fact by their appearance and the minerals they contain. Most sedimentary rocks become cemented together by minerals and chemicals or are held together by electrical attraction; some, however, remain loose and unconsolidated. The layers are normally parallel or nearly parallel to the Earth's surface; if they are at high angles to the surface or are twisted or broken, some kind of Earth movement has occurred since the rock was formed. Sedimentary rocks are forming around us all the time. Sand and gravel on beaches or in river bars look like the sandstone and conglomerate they will become. Compacted and dried mud flats harden into shale. Scuba divers who have seen mud and shells settling on the floors of lagoons find it easy to understand how sedimentary rocks form. \n\nExamples:\n\nArkose \nBreccia \nChalk \nChert \nClaystone \nCoal \nConglomerate \nCoquina \nDolomite \nEvaporite \nGreywacke \nLimestone \nMarl \nMudstone \nOolite \nSandstone \nShale \nSiltstone \n\nFor more check :\n\nhttp://interactive2.usgs.gov/learningweb/explorer/topic_rocks_sedimentary.htm\n\nhttp://en.wikipedia.org/wiki/Sedimentary_rocks\n\nhttp://en.wikipedia.org/wiki/List_of_rocks
160584
Um...well first you take some water, add in a cliff of some sort, then lastly you sprinkle on some gravity.  Voila!  You have yourself your very own waterfall.  It has water, and guess what?  It's falling!
384463
If you are talking about stalagmites and stalactites, it is not the water that is turning to stone...  It is calcite in the water that is deposited.
165682
A complete answer to this question would require a very large book.  You will need better focus for a short answer.\n\nAcids dissolve most minerals and rocks.  Even water dissolves rocks or rock constituents over a long period of time.  There is fabulous erosion in calcium rich rocks creating tunnels and underground chambers...\n\nAcid rain enhances this process greatly.  Virtually all the salts in the oceans came by the erosion of rock salts over aeons of time spent under the never ceasing rainy seasons.\n\nSome conditions are rock forming or metamorphosing, others are rock dissolving.\n\nHeat and cold are also factors in the deterioration of rock, making it more vulnerable to water and acid rain.\n\nThere are many fabulous websites on rocks and minerals and gemstones.  Just Google some of that and you will pull up two or three super-excellent ones.\n\nTry also Googling "rock geological processes."  Keep it in quotes.
800807
of course stones can be melted , heat them till they reach melting point (which depends on their components) and they will melt and form lava with the same chemical composition , this can be done in labratories .. and you can cool the melt again to form a hard rock .. quick cooling = fine grained rock with the same composition of course or slow cooling = course grained rock ..
131586
I would suggest the rock cycle. This is a basic earth science project that you can make as simple or complex as you want. You can identify the three major parts and how they interact going from one part of the cycle to another. You can identify the different properties of these rocks (and find samples if you want). If you want to make it really elaborate, you can bring in how plate tectonics drives the rock cycle, and how volcanism, metamorphism, and sedimentation form the Earth's surfaces.\n\nAnother topic that might be interesting to you would be to identify all the products and materials around you that come from rocks and minerals. Since this includes almost everything (e.g gypsum wallboard, clay in ceramics, iron in cars, aluminum in beverage containers and cars, plastic made from oil, shampoo made from oil, household detergent made from oil, electricity made from burning coal and natural gas, salt on your table, etc). You could look for the most surprising things, and could perhaps include how soil is made from weathered rock so even trees and plants come from rocks. You can do some research on how each of these materials is mined and where it comes from. You get the idea, right? \n\nDepending on where you live, you might do something on natural hazards in your area.If you have earthquakes you could find a fault map for your area and research earthquake hazards. If you have landslides or coastal erosion you could research what causes these things. Of course, if you live next to a volcano that is an excellent topic.  For example, see if you can find an eruption hazard map.  You might want to make sure your teacher approved of this because it might not be within the scope of your class (some teachers might consider this geography more than earth science). \n\nJust a bunch of ideas from a geologist. Hope this helps.
607690
Sedimentary rock is one of the three main rock groups (along with igneous and metamorphic rocks) and is formed in three main ways—by the deposition of the weathered remains of other rocks (known as 'clastic' sedimentary rocks); by the deposition of the results of biogenic activity; and by precipitation from solution. Sedimentary rocks include common types such as chalk, limestone, sandstone, clay and shale. Sedimentary rocks cover 75% of the Earth's surface. Four basic processes are involved in the formation of a clastic sedimentary rock: weathering (erosion), transportation, deposition and compaction.\n\nSedimentary rocks are formed from overburden pressure as particles of sediment are deposited out of air, ice, or water flows carrying the particles in suspension. As sediment deposition builds up, the overburden (or lithostatic) pressure squeezes the sediment into layered solids in a process known as lithification ("rock formation") and the original connate fluids are expelled. The term diagenesis is used to describe all the chemical, physical, and biological changes undergone by a sediment after its initial deposition and during and after its lithification, exclusive of surface weathering.\n\nSedimentary rocks contain important information about the history of the Earth. They contain fossils, the preserved remains of ancient plants and animals. The composition of sediments provides us with clues as to the original rock. Differences between successive layers indicate changes to the environment which have occurred over time. Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remnants.\n\nThe sedimentary rock cover of the continents of the Earth's crust is extensive, but the total contribution of sedimentary rocks is estimated to be only five percent of the total. As such, the sedimentary sequences we see represent only a thin veneer over a crust consisting mainly of igneous and metamorphic rocks. These rocks are very useful for building and architecture.\n\nYou can get more information at following link\n\nhttp://en.wikipedia.org/wiki/Sedimentary_rock
670407
False.\n\nPermeable rocks allow water to move through them. Impermeable rocks don't therefore the water would run off.
467968
Sedimentary rock forms relatively flat. Youngest always on top of the oldest. Just like a stack of newspapers if you were to accumulate them everyday.\n\nFolding from compressional stress is one. Rock is literally pushed together creating anticlines & synclines, upward folding & downward folding arches respectively.\n\nFaults can also do this. This can be accomplished through compressional (pushed together) or tensional (pulled apart) stresses.\n\nI am not too sure about this one but isostatic adjustment could possibly tilt rocks.\n\nHope this helps.\n\n:)
393590
Well, sedimentary has "sediment" in it. You know, the yucky mud stuff on the bottom of a river or stream. That's what sedimentary rocks are made of.\n\nIgneous looks like ignite, which is to start a fire. Volcanoes have red-hot magma in them, and that's what igneous rocks are formed from.\n\nA metamorphosis is a change from being one thing to being something else (like a caterpillar becoming a butterfly.) Metamorphic rocks are formed when other rocks are transformed by heat and pressure deep withing the earth's crust. \n\nI know you probably wanted some kind of clever mnemonic device, but in this case all you have to do is remember the meanings of three common words.
865007
Minerals are what make up rocks.  When Earth's rocks erode, these minerals are released.  A lot of times, erosion takes place in higher elevation areas because the denudation (erosion) rate of higher elevations is also higher than lower elevations and streams usually stem from places of higher elevation.  Minerals then are deposited into these streams.
71958
muromets is correct. You can model this yourself using clay. On a cookie sheet, put a half inch of water. On top, put a 1/2 layer of rolled clay. This is what the earth was liked pre-flood. The earth was watered from below. Now break open the center and the water will burst forth (as Genesis describes) and now the clay is covered by the water as the clay sinks. Now pull the clay out toward the corners and the water will display into seas.\nIn order for the continental drift to occur properly, the earth would have had to expand, thus making physics of the covering of the earth with water and its later displacement to be quite possible.
120074
To see some pictures of geodes you can go to:\nhttp://www.rocksforkids.com/Rocks/geodes.html\n\nFor help on how to identify geodes, I have not been able to find a difinative website.  Most sites tell you to examine rocks that you know are geodes and find other similar rocks in the same location.\n\nAnother good siteis :\nhttp://skywalker.cochise.edu/wellerr/students/geode/Geodes.htm\n\nGeodes form under special conditions. There must be a hole in the rock and then minerals dissolved in fluids must be able to reach that hole to allow crystals to be able to form. In geodes the minerals form from the outside in, therefore the crystals point inwards. Certain types of rock are more susceptible to the formation of geodes.\n\nThe most common rocks containing geodes are lavas that contain gas pockets and carbonate rocks which contain holes where other minerals dissolved away, sometimes during the formation of the rock from the original sediment (the process is called lithification and means "turn to stone"). These rocks are common in certain areas of the country.
63593
When it rains and the rain hits mountains or other materials it cannot sink through small trickles appear in the direction of the downslope. The trickles come together eventually and pour looser materials with them (such as sand or loose earth for example). Eventually they can form a big enough stream to be a river. When a river runs with high speed it tends to have a straighter path, but if it becomes wide and slow it starts bend like a serpentine.