Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. On occasion liquids were tested simply for acidity or basicity, which did not show the continuum of pH nor allow comparisons.
Compare results of pH level between each substance tested by drawing a pH scale and labeling each score with the substance name. Pour ounces of toilet bowl cleaner into the appropriately labeled cup.
The group at station 15 moves to station 1 and continues on to high numbered station. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual.
They are to test a minimum of four additional and different liquids in their home and record the pH of each. Assessment The lab is assessed as indicated above. Is water acidic, basic, or neutral? Provide paper toweling at each station 6. Adjust number of stations for shorter class periods.
What is the scale pH is measured on? The homework provides an evaluation of the testing procedure and transfer to real life setting. Students receive a second lab sheet and a length of pH testing strip with scale. What is the range of basic levels? Teaching Notes and Tips Safety rules must be emphasized for this lab.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. It is beneficial to have another adult in the classroom with a class over 20 students. It is also important that infection control protocol be used at the saliva testing station.
If guided activity, review properties of acids and bases; and the uses of each. Discuss uses of liquids and liquids Place one eye dropper at each station if using Student preparation and procedure: Explain the characteristics of liquids which tested 7.
Contamination of strips occurs when students touch the area used to test liquid creating a testing error. Pour ounces of milk into the appropriately labeled cup.CAT - Measuring the pH of common household substances 1.
Predict the pH value of substances & estimate the pH value by using the universal indicator. 1 EXPERIMENT Determination of pH of Common Substances Materials: pH paper and color chart (pH range 3 to 12) or pH meter distilled water white vinegar household ammonia (or baking soda).
Aug 05, · How to Measure the pH of Water. Testing the pH of water tells you how acidic or basic the water is at the moment of testing. Pure water should have a pH of 7, though common tap water has a pH between 6 and Highly acidic water (water with a low pH) is more likely to dissolve toxic chemicals.
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Nov 10, · October The purpose of these guidelines is to assist manufacturers in determining the metric equivalent declarations (e.g., gram (g) and milliliter (mL) measures) of the common household. Context for Use: Investigating pH of common household substances is designed for a 6th grade middle school classroom.
The activity is conducted as a lab with emphasis on prior determined safety rules. Mar 16, · The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.
Guided Lessons Learning Resources Teaching Tools. Testing pH Levels in Everyday Foods and Household Products. Science Project. Measuring /5(72).Download