Introduction to pH Measurement
This series of simple, highly visual lab activities introduce students to the concept of pH. Students add drops of acid and base to a variety of pH indicators and observe how pH indicators can detect and differentiate acids and bases. Students are also introduced to the concept that acid and base discussions are not limited to chemistry but also extend to applications in biology and the study of the human body.
Details at a Glance
- 1-2 Days | 1-2 ~50 minute class periods
- 1 Activity
- Accommodates 5 classes, each with 12 groups of 3 students
- Consumables service 180 students
- Includes digital resources
Scientific Concepts
•pH indicators can detect and differentiate acids and bases.
•The pH scale is a method of measuring the relative strength of acids and bases.
•pH is an important factor in many biological processes.
KEY VOCABULARY: acid/acidic, hydrogen ion, indicator, pH scale, base/basic (alkaline), hydroxide ion, neutral
Guides & Student Sheets
Our kits and modules provide you with everything you need so you can open, review, and teach the material confidently the next day.
- Comprehensive Teacher Guide with background information, detailed instruction, example data and answers
- Student Sheets with age appropriate background information, full procedure(s), and analysis items
- Materials necessary for the investigation (beyond common classroom items)
- Safety Data Sheets
Kit Components
- 12 Chemplates® w/stir stick
- 1 Hydrochloric acid, Drop control bottle
- 1 Sodium hydroxide, Drop control bottle
- 1 Bromthymol blue , Drop control bottle
- 1 Phenol red, Drop control bottle
- 1 Phenolphthalein, Drop control bottle
- 1 Blue litmus paper, Vial
- 1 Red litmus paper, Vial
- 1 Universal indicator paper, Vial
- 50 Student Guides
- 1 Teacher’s Guide with MSDS
- Not included and needed for instruction: Eyewear.
Need to order refills for this Kit?
Order RefillsRelated Products
-
Kit #83Identification of SubstancesIn this kit, students are asked to identify common metallic and non-metallic ions in zinc, cadmium, antimony, barium, sulfate, sulfide, sulfite, and carbonate. Through the identification process, students learn that each substance has distinctive properties. As a closing activity, students conduct chemical tests on four unknown substances. All test results are safe, clear, colorful,...
$189.20 View Details -
Kit #85Chemical Formulas
With this activity, students learn to predict the formula of a compound by comparing the amount of the compound produced when combining different ratios of reactant solutions. Students use a chemical analysis method to determine the ratio of each of the ions in the product substance’s composition. Knowing the ratio, students can...
$129.75 View Details -
Kit #84Identification of Chemical Reactions
A very important outcome of studying science is to acquire the ability to make and interpret observations. Students initially observe and describe seven different solutions. They then combine pairs of these chemical solutions and use their observations to determine whether or not a chemical reaction took place. Finally, they test an unknown solution and...
$151.35 View Details -
Kit #82Acids and Bases
In this activity, students observe various acid and base reactions. They observe the effect of acids and bases on the chemical indicators litmus and phenolphthalein. They also observe that not all metals react equally with acids and not all acids, even those with the same concentration, react equally with metals. Students also collect and...
$183.80 View Details -
Kit #81RpH Indicator
In this very popular Applied Science Concept Kit, students perform a series of very colorful tests that help them to develop a better understanding of pH, and its relationship to acids and bases, and its effect on indicator dyes. Using a LAB-AIDS® Chemplates® and universal indicator, each student creates his own pH...
$148.50 View Details
