<TITLE>How Organisms Respond To Changes In Their Environment</TITLE>
<PRE>
<B>How Organisms Respond To Changes In Their Environment</B>

Carmella Gordon             Farragut High School
9700 S. Oakley              2345 S. Christiana
Chicago, Il. 60643          Chicago, Il. 60620
312-233-5809                312-542-3000

<B>Objective</B>: 

To observe the reaction of living cells to mechanical and chemical stimuli.

To observe the streaming of protoplasma in living cells.

To identify the relationship between cell response and survival.

<B>Materials</B>: 

       Living culture               Compound Microscope            
       Droppers                     Salt crystals
       Vinegar                      Microscope slides and coverslips
       Decaffeinated coffee         Caffeinated coffee
       Sugar                        Cotton fibers
       Specimen pipettes

<B>Strategy</B>:  

1.  Using a specimen pipette, remove a drop from the collected specimen.
                         
2.  Place culture on the microscope slide and cover.  Focus microscope
    to locate organism.

3.  Having observed the normal activity, some artificial stimuli will
    be introduced so that the cell response can be observed.
    Record observed behavior on chart provided.
 
4.  Prepare a new culture specimen if necessary; repeat strategies 1-2.

5.  Cautiously place a small salt crystal near some of swimming organisms.
    Observe and record their response.

6.  Continue to add each stimuli along side of covered organism.
    Observe and record the behavior of the organism. 

7.  Observe movement.  Are new structures visible on the organism?
    Has movement stopped?
    
<B>Conclusion</B>:
    
     Bridging the learning experience, is man being affected by environmental 
pollutants? 
</PRE>

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Environmental science is about how human activities affect the natural world. Environmental scientists work to solve problems like global warming, using more renewable energy, and stopping pollution of the air, soil, and water to keep our planet healthy.

To observe the reaction of living cells to mechanical and chemical stimuli. To observe the streaming of protoplasma in living cells. To identify the relationship between cell response and survival.

We're going to observe how living cells react to different stimuli. We'll use a microscope to see how the cells move and change when exposed to salt crystals, vinegar, coffee, sugar, and cotton fibers.

Investigating Cell Responses

How do organisms respond to changes in the environment?

<h1><strong>1000 Science Fair Project Ideas by Subject</strong></h1><p>Looking for a science fair project idea? Each of our science fair project idea has complete instructions with video. Get ideas for your science projects, find extra resources for your class' scientific projects, or try a fun experiment at home! It doesn't matter what grade you're in, there's something for everyone!</p><p>You can find your perfect science fair project from the different science subjects below or from our <a href="https://www.all-science-fair-projects.com/category0.html#bottom">science fair project idea lists!</a></p>

<h2>Science Fair Project Idea Lists</h2><p>Looking for other ways to find good ideas for science fair projects? Check out these lists of science projects!</p><hr style="clear:both; border-style:dotted" data-marker="clearFloat"><h3>Easy Science Fair Projects</h3><p><img src="/images2/flex/176_popular 2 (2).png" data-size="100" data-float="left" style="width:100px; float:left">Explore the exciting world of science with an easy science fair project that you can do at home using simple materials. Any one of these easy project ideas will teach you important scientific concepts and help you have fun while learning. An easy science fair project is a great way to introduce the wonders of science to kids and adults alike!</p><hr style="clear:both; border-style:dotted" data-marker="clearFloat"><ul><li><p>Changing the Color of Flowers</p></li><li><p>Baking Soda Volcano</p></li><li><p>Swimming Raisins</p></li><li><p>Egg in Vinegar</p></li><li><p>Color of Skittles Experiment</p></li><li><p>Jumping Rice Krispies</p></li><li><p>Mixing Colors of Light</p></li><li><p>Camouflage and Hide</p></li><li><p>Light and Dark on Seed Germination</p></li><li><p>Make a Parachute</p></li></ul><p>More science project details at <a href="https://www.all-science-fair-projects.com/science_fair_project_list/12">Easy Science Fair Projects <strong>→</strong></a></p><hr style="clear:both; border-style:dotted" data-marker="clearFloat"><hr style="clear:both; border-style:dotted" data-marker="clearFloat"><h3>The Top 10 Best Science Fair Projects</h3><p><img src="/images2/flex/177_popular 2 (3).png" data-size="100" data-float="left" style="width:100px; float:left">To find the best science fair project for you, we've picked the best science projects from 10 different science categories, all with very interesting topics. 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Science museums, natural history museums, space museums, and discovery museums are all great places to do that! You can discover all sorts of interesting things about science and find cool project ideas for science fairs.</p><p>There may be free admission days or free passes to a science museum near you! Check your credit card for offers, your local library for free museum passes, and nearby science museums for free entrance days.</p><p>So what are you waiting for? <a href="https://en.wikipedia.org/wiki/List_of_science_museums">Find a science museum near you</a> and prepare to be awed by all that you can learn there!</p><hr style="clear:both; border-style:dotted" data-marker="clearFloat"><h4>Look around and observe</h4><p><img src="/images2/flex/117_5.png" data-size="100" data-float="left" style="width:100px; float:left">Do you know how scientists start their cool projects? They often look around and notice things that are interesting or make them curious. 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