Curated OER
Determination of the percentage of Acetic Acid in Vinegar
Pupils determine the concentration of acetic acid when the concentration of the base with which is titrated is known. They investigate how to weigh a sample using the balance, measure volumes using graduated cylinder, explore the...
Curated OER
Lake Pepperidge Farm
Students calculate proportions to determine the total population of Lake Pepperidge Farm. They collect a blind sample of fish and count the number of tagged and untagged fish. They collect data from all samples and record the data in a...
Curated OER
Iron Filings
Pupils conduct an experiment in which a solution of copper(II) sulfate is added to iron filings. They write and balance the equation for the reaction that occurs and calculate the amount of iron that reacted and the percent yield of...
Curated OER
Chemistry 112: Form A-
In this chemistry 112 instructional activity, students use their knowledge of chemistry concepts to answer the multiple choice questions provided. Students calculate the answers using the appropriate formulas.
Curated OER
Ellipses
In this ellipses worksheet, students measure and calculate the eccentricity of each ellipse and then calculate the percent deviation. This worksheet has 10 problems to solve.
Curated OER
Mathematics: It's a Wrap!
Students calculate the amount of wrapping paper needed to wrap boxes. They describe how they determined their answers.
Curated OER
Water Use and Conservation
Young scholars discuss the different types of water found on Earth. They discover why not all water is used for drinking and calculate how much water they use. They create their own water conservation plan.
Curated OER
Irregular Fractals
Students study and research irregular fractals and construct a few based on their research. Students practice pattern recognition skills and plane geometry skills calculating dimensions on the Fractured Pictures activity.
Curated OER
Cube Combinations
Second graders, given 5 number cubes, roll the cubes and record the data.
Curated OER
Getting Partial
This unit introduces a number of important concepts relating to fractions. The first of these is that fractions represent parts of regions and sets and so are useful in a large variety of situations. Whole numbers are not enough by...
Curated OER
Worksheet #6, Exponents, Interest, and Radioactive Decay of Isotopes
For this calculus worksheet, students sketch graphs of given exponential functions. They compute the principal needed to have a given ending balance when the interest is compounded at varying times. Students use a simple exponential...
Curated OER
Water Quality
In this water worksheet, students determine the factors that effect the solubility of gases, calculate the percent concentration of solutions, and give the balanced chemical equation for photosynthesis. This worksheet has 18 short answer...
Curated OER
Let's Get to the Bottom of the Arctic!
Students identify the three realms of the Arctic Ocean, and describe the relationships between these realms. They describe different species associations in a benthic community.
Curated OER
Who's Going to the Convention?
Students practice planning budgets as they create a budget for ten employees of a company to attend a professional convention. They use the Internet, and spreadsheet software to complete their assignment.
Curated OER
Determine Soil Particle Size
Students examine various soil samples in groups. Using the samples, they identify the characteristics of them and calculate percolation and infiltration rates. They use this information to discover why some species can survive in one...
Curated OER
Egg Measurement
Students explore measurement and units. They measure eggs to determine their density, mass and percent composition. An inquiry approach is used for students to ascertain the mass.
Teach Engineering
Preconditioning Balloons: Viscoelastic Biomedical Experiments
What does stretching a balloon have to do with equilibrium? Groups explore preconditioning by stretching a balloon to a point of equilibrium. They then measure the amount of force required to stretch the balloon to the same point several...
Curated OER
Salaries: How much do Professional Football players Make?
Seventh graders use the internet to investigate the salaries of professional football players. They calculate how much the top five paid athletes in football earn for one game and for one minute of playing time. Students determine the...
Curated OER
Groundwater Basics
Groundwater is an essential natural resource, not to mention a fascinating topic to study. Here is a series of twelve amazing lessons on the water source and how we use it in our daily lives. Concepts require higher math and physics...
Curated OER
Fuel Saving
Students explore the problem of percentages. Students find a given fraction or percentage of a quantity. Students devise and use problem solving strategies on problems explored.
Curated OER
Fractions
For this fractions worksheet, students solve and complete 3 different types of problems. First, they complete the table shown with the correct percentage, fraction or decimal. Then, students find the measurements shown. In addition, they...
Curated OER
Finding Equivalent Forms For Positive Rational Numbers
Learners discuss the relationship between and the equivalent forms of rational numbers. They will convert numbers from decimals to fractions, understanding they are equivalent, but just different forms.
Physics Classroom
All Work and No Play Lab
Don't let the term, "slotted wood board" detract you from the value of this experiment. Class members tie a string to a cart and, with even horizontal force, drag it up an inclined plane. The objective is to compare the work done with...
Physics Classroom
A Critical Lab
Physics lab groups finagle with laser lights to determine the critical angle of refraction for both water and Lucite. Because there are no detailed steps or an answer key for this enlightening exercise, an inexperienced physics...