Showing posts with label scheme. Show all posts
Showing posts with label scheme. Show all posts

Saturday, February 4, 2012

Science Fair scheme on Testing Drinking Water

Science Fair scheme on Testing Drinking Water-Experiment Chemistry

You are absorbing adequate to know that the purpose of most science fair projects is to teach students how to use scientific methods to solve problems on their own. A science fair task can allow students, parents, and teachers to make new discoveries together. One of those discoveries might be how clean your drinking water is.

Experiment Chemistry

Students may expect faucet water to be clean, but is it? A science fair task on testing drinking water can help them learn what is in the water they use. This figure will help them and you conduct a drinking water test.

State Your Hypothesis

A good example might be, "If I test drinking water from distinct sources, which will I find to be the best for my health?" A poor example would be, "If I drink tap water, what happens?"

Background Research

Learn all that you can about what water may contain. Explore the effects of various contaminants, minerals, etc.

Develop a Drinking Water Test

What kind of drinking water test will you use? What kinds of drinking water will you test? Will you buy a kit, or plainly order acceptable test materials? How will you get the water to be sure you do not convert its content?

What You Need for Drinking Water Tests

Students will need Colorimetric test strips for many drinking water tests. Kits are available from science fair websites. Water Safe Drinking Water Test is an Epa standardized, laboratory certified simple kit that identifies harmful levels of 8 distinct common contaminants in water: bacteria, chlorine, lead, nitrates, nitrites, pesticides, pH, and water hardness.

Predict Results

Write out a prediction of what you expect. Will your city tap water be the best water for your health? Should your house pay money to drink only bottled water? What do you predict your drinking water test will reveal?

Conduct Your Drinking Water Test

Students may pick from many drinking water tests. Here are a few possible tests. Younger students may want to use only one. Older students may concentrate a series of drinking water tests.

1. Basic: A basic drinking water test might allow students to test water for alkalinity, chlorine (both free and total), nitrate and nitrite, pH, and water hardness. What is the basic make-up of your water?

2. Bacteria: Along with a basic drinking water test, you might test for bacteria in the water. Water from a drinking fountain may show bacteria that get on the bubbler and wash into the water.

3. City Water: What is in municipal drinking water? You can use the basic drinking water tests above, but check, too, for metals and sediment. Are corroding pipes contaminating the water?

4. Well Water: Since the government does not test hidden wells, there may be contaminants in the water taken from them. What might you find? Would you expect more sediment or less? Would your drinking water test be likely to find pesticides if the well is near a farm or orchad where they are used?

5. Bottled Water: Is bottled water nothing else but pure? Is it good than tap water or worse? Run a drinking water test on it and see what you find.

6. Water Cooler: If your water cooler is typical, a large five-gallon bottle is turned upside down into the drinking water crock. Might there be germs on the bottle top? Will a drinking water test show up these germs?

7. Pet Water Bowl: Pet drinking water tests will show you what your pet's water contains. The pet bowl should not be cleaned right before the test. Allowing your pet to drink from it will show whether or not the water is still pure adequate for humans.

Repeat Your Drinking Water Test

A good scientist repeats tests to be sure the results are the same. You will not have precise results if you run your drinking water test only once.

Analyze

Analyze the results of your tests. Which water is purer? Which one tastes better, looks better, and smells better? From your analysis, do you think your prediction will hold up?

Arrive at Conclusions

Draw conclusions from your drinking water test. Look at all the evidence and settle what it means in regard to healthy drinking water.

1. Which water contains the fewest contaminants?

2. Which water contains the fewest bacteria?

3. Which water is best for your health?

Prepare Your Display

Decide early how the display will look and leave fullness of time to complete it. Will you have photographs? Will you have clear glasses containing water samples? How will you display used test strips?

Most science fair projects wish a display board to characterize your work to others. A three-panel display board that is 36" tall by 48" wide when unfolded is standard. On your board, contain these elements.

1. Title: Make it catchy - and big adequate to read from across a room.

2. Hypothesis and research: found your information from top to bottom, left to right, as though you were planning a newspaper page. Put Hypothesis and Explore information on the left side of your board.

3. Materials and procedures: Place this information just under your title in the middle of the board.

4. Data / Charts / Photos: These go at the lowest of the center part of your board.

5. Results and conclusions: The right side of your board holds the final information about your drinking water test.

A science fair task on testing drinking water can be absorbing and exciting, acceptable for any age student. The results may surprise everyone.

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Sunday, January 15, 2012

5th Grade Science Fair scheme Idea

It's that time of the year again! Time to create, fabricate and carry out a science scheme for the school science fair. Stumped? Don't worry this report will help you plan a 5th grade scheme in science.

Here is a great 5th grade science fair scheme idea:

Every 5th grade scheme in science needs these foremost sections: title, materials, purpose (of the experiment), hypothesis (what you think is going to happen), procedure, results and conclusion. For this 5th grade science fair scheme idea:

Title: Come up with your own title!

Purpose: We all heard the saying water and oil do not mix. Why? Water and oil are both liquids and should mix like liquids. What will happen when we authentically test this saying and mix oil and water? What will happen when we mix honey in? What will happen when when place objects in this mixture?

Hypothesis: This section is for your predictions. What do you think will happen when you pour the liquids in the jars? What do you think would happen to the objects? When you place objects into water, they regularly sink. Do you think this will happen when you place objects in liquids that are not water? Don't worry about being right! Hypothesis can be wrong, after all you need to do the experiment to find out.

Materials: For this science fair scheme idea, you will need

  1. honey
  2. small objects of separate weights such as paper clips, coins, toys, marbles, etc.
  3. two separate jars that are at least 8 inches tall
  4. water
  5. vegetable oil
  6. food coloring

Procedure:

  1. Pour honey into one jar so it is 2 inches high.
  2. Food color the water (pick whatever color you like best!) and then pour 2 inches of water into the same jar with the honey.
  3. Then add oil to the same jar, 2 inches high again.
  4. Pour the liquids in reverse order in the second jar. (oil, water, honey)
  5. Put the objects in one jar. See what happens to the objects after 10 minutes, one hour, two hours.
  6. Repeat step five for objects in the second jar.

Results: What happened? divulge everything. You don't need to contain explanations of why something occurred. Make sure to bring to jars to the science fair!

Friday, January 6, 2012

7th Grade Science Fair scheme Ideas

7th grade science fair scheme ideas are likely more involved than the projects you've done in old years. The science fair at your school is likely more contentious for your age group and there's a good chance your peers will be putting a lot more time and attempt into their projects than they have in old years, so you'll want to do the same for your 7th grade science projects.

One arresting idea might be to see which type of cheese mold will grow on the fastest. This is a great scheme because it's interesting, but still fairly simple. Someone else idea for a scheme might be to see if you can grow a plant without soil. You can try placing seeds in discrete things such as a wet paper towel, grass clippings, coffee grounds, etc to see if they will grow. Be creative!

You could find out either the presence of smoke in the air affects plant transpiration. Perhaps you could look into either or not there is ever acid snow, we all know there is acid rain, but what about snow? You can find this out by testing the Ph level of the snow and comparing it to the Ph level of acid rain. Obviously this singular scheme only works in the winter months. There are many great topics out there for your 9th grade science project, it's just a matter of looking one that interests you, researching and testing it out and presenting it in a professional manner.