Materials:
Four cups
Distilled drinking water
Glass pot (do not substitute a metal 1! )
1 ¼ teaspoons cornstarch
Stove
Wood spoon
Potassium iodide
Coffee filter
Paintbrush
Scissors
Hiding tape
Spray bottle
Experimental Procedure
Measure out four glasses of distilled water and place it into the glass pot.
Mix in 1 ¼ teaspoons associated with cornstarch
Heat the mixture over a medium flame while stirring it having a wooden spoon. When the mixture thickens and becomes a little see-through, remove it from the stove.
Include the ¼ teaspoon of potassium iodide, and mix. Let the mixture cool.
Put a coffee filter on the ceramic plate, and brush both sides from the filter with the mixture. Try to ensure that the mixture is spread evenly on the entire filter. You have now created an ozone check paper.
Use additional filters to make a lot more ozone test papers.
Wash your hands with soap and tepid to warm water.
Let the test papers dry in the dark place.
Cut the test papers into strips.
Spray a strip with distilled water as well as hang it in one of the locations that you want to test.
Spray and hang additional test strips in the areas. Consider hanging some strips inside and a few outside, as well as hanging some in places that you simply think experience higher levels of pollution.
Depart the strips for eight hours.
Take lower the strips and spray them with distilled drinking water. The strips should change color based how much ozone they were exposed to. The actual darker the purple color, the more ozone is in the air near their location.
Note: Don't place the strips in direct sunlight.
Terms/Concepts: Ozone; Which factors will probably increase the ozone levels in the atmosphere?
References:
First Place Science Fair Projects with regard to Inquisitive Kids, by Elizabeth Snoke Harris. Pp. 110-112.
Keren Perles did as an educational writer, editor, teacher, and tutor of ages. Her experience spans the subject places, from science and math to English and also the Hebrew language.
