Curated OER
Perimeter and Area
In this perimeter and area instructional activity, 9th graders solve 17 various types of problems, mostly word problems related to determining the area or perimeter of a geometric shape. They also determine the area and perimeter of...
Curated OER
Determine the molarity of an unknown HCl solution
Students complete a lab to help develop a comprehension of stiochiometry. They review equation writing, equation balancing, and stiochiometry. Studnets are given the following information: Sloppy students from the previous class have...
Curated OER
Indicator Sponge A Discrepant Event Demonstration
Learners explore the use of acid and base pH indicators. The teacher saturates an indicator sponge with congo red solution. Afterwards, the sponge is placed in a blue base solution. Students observe that the blue sponge actually turns...
Curated OER
Acid Neutralization Lab
Students discuss and design a lab to measure pH of limestone, pyrite, limestone-pyrite mixtures and their control. They have their labs approved by the instructor before they begin. Students preform the lab and explore the acid-base...
Curated OER
Soil Acidity and Leaching
Students are introduced to the concept of acids and bases and arouse curiosity about acids and bases in daily life. They are introduced to the measurement of soil pH. Pupils are introduced to the effect of soil pH on nutrient cycling...
Curated OER
Chemistry: pH and pOH Calculations
In this pH instructional activity, students complete a graphic organizer by determining the pH and pOH of given solutions and then deciding if its an acid or base. Students write equations for dissociation reactions. This instructional...
Curated OER
pH Basics
At some point, all science learners experiment with pH. In this brief lesson plan, they simply use pH strips or a meter to find the pH of six different solutions. A useful worksheet that displays a data chart is included for your students.
Curated OER
Trapezoid Problems - base1, base2, height and area
In this online math worksheet, students must find the missing measurement in a variety of trapezoids. This excellent resource allows the students to check their answers, and to get "hints" should they run into difficulties. A terrific...
Curated OER
A Number is X% of What Number?
In this algebra worksheet, students solve for the base of a number given the percent and its partial amount. There are 10 questions.
Curated OER
Acids and Bases
Students study acid and bases and how they fall on the pH scale. In this solutions lesson students complete a lob activity using litmus then fill out a data table.
Curated OER
Soil Sample Lab
Young scholars test the pH of soil samples they collected from the field trip. In this chemistry lesson, students differentiate acids and bases. They write a lab report about the experiment.
Curated OER
What is pH?
Students describe pH and the importance of it in the natural world. In this Biology lesson students compare the pH of different mixtures.
Curated OER
Off Base
Students study La Chatelier's principle and identify how carbon dioxide may affect pH. In this coral lesson students complete a worksheet on pH and observe a lab.
Curated OER
Cabbage Juice Indicator
Middle schoolers experiment with household solutions and classify them as a base or acid. For this exploratory lesson students complete a lab where they test products to see if they are an acid or a base.
Curated OER
Exponents: Positive and Negative Bases
In this exponent learning exercise, students solve exponent problems containing positive and negative bases. They multiply integers. This four-page learning exercise contains 27 problems. Answers are provided on the last page.
Curated OER
Identifying the Base and the Exponent
For this identifying the base and the exponent worksheet, students write the base and the exponent for four expressions.
Curated OER
pH
Students test the pH of various solutions. In this pH activity, students use litmus paper to test the pH of household solutions. They compare their results with book charts.
Curated OER
Digestion Experiment
In this digestion experiment worksheet, students follow the procedures to set up an experiment about stomach digestion using pH paper to test for acidity.
Curated OER
Indices and standard Form
In this indices and standard form worksheet, students convert numbers from exponential notation to standard notation. Positive and negative exponents are included. This two-page worksheet contains 30 problems. Answers are provided beside...
Curated OER
Trigonometry: Square Roots
In this square roots worksheet, students mental calculate the square root of numbers. They determine the value of numbers raised to a power. This two-page worksheet contains 30 problems.
Curated OER
Exponents: Ten to the nth Power
In this exponent worksheet, students determine the value of ten when raised to a specified power. This one-page worksheet contains 5 problems. This self-checking worksheet may be completed on-line or presented in printed form.
Curated OER
Binary Code Message
In this binary code message, students convert numbers from binary numbers to base ten. This one-page worksheet contains 26 problems.
Handipoints Inc.
Two to the nth Power
In this power learning exercise, students compute the value of a number raised to a power. This on-line learning exercise contains 4 simple exponent problems and is self-checking.
Curated OER
Anhydrides, Acid Rain and Titrations
In this chemical compounds worksheet, students determine is compounds will act as acids or bases when added to water. Students compare basic, acidic, and amphoteric anhydrides. This worksheet has 15 fill in the blank, 2 short answer...