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Read the Fine Print
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(Complete Item Description)
- Abstract:
How do strong and weak acids differ? Use lab tools on your computer to find out! Dip the paper or the probe into solution to measure the pH, or put in the electrodes to measure the conductivity. Then see how concentration and strength affect pH. Can a weak acid solution have the same pH as a strong acid solution?
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
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PhET Interactive Simulations
Remix and Share
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(Complete Item Description)
- Abstract:
This lesson plan provides basic guidelines of the Stanislavski system. Exercises are offered to help the student to think creatively and apply this plan to develop their own acting techniques. This plan can be introduced in one class period and practiced throughout the term. Follow these exercises with improvisation. It will help students focus and begin to think on their feet. This plan deals with concentration.
- Subject:
- Arts
- Grade Level:
- Secondary
- Collection:
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LEARN NC Lesson Plans
Read the Fine Print
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(Complete Item Description)
- Abstract:
This lesson plan introduces the properties of mixtures and solutions. A class demonstration gives the students the opportunity to compare and contrast the physical characteristics of a few simple mixtures and solutions. Students discuss the separation of mixtures and solutions back into their original components as well as different engineering applications of mixtures and solutions.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
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TeachEngineering
Read the Fine Print
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(Complete Item Description)
- Abstract:
Explore what makes a reaction happen by colliding atoms and molecules. Design experiments with different reactions, concentrations, and temperatures. When are reactions reversible? What affects the rate of a reaction?
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
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PhET Interactive Simulations
Read the Fine Print
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(Complete Item Description)
- Abstract:
Students use dyes to explore serial dilution, an important technique in physical science and engineering. Students systematically dilute solutions of food coloring with pure water. They observe how the color intensity, or saturation, of each subsequent solution changes. They also keep a running calculation of the concentration of drops per ml water. They apply what they learn to discussions of biomedical engineers working with cells.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
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TeachEngineering
Read the Fine Print
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(Complete Item Description)
- Abstract:
Students explore serial dilution, an important technique in physical science and engineering. They use a fluorescent compound as the dye to track through a series of dilution steps. They observe how the changing color intensity, or saturation, of each subsequent solution. They also keep a running calculation of the concentration dye in each serial dilution. Finally, using a UV lamp, they investigate whether the fluorescent dye can be detected after it disappears from view under normal lighting conditions.
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Primary, Secondary
- Collection:
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TeachEngineering
Read the Fine Print
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(Complete Item Description)
- Abstract:
Test the pH of things like coffee, spit, and soap to determine whether each is acidic, basic, or neutral. Visualize the relative number of hydroxide ions and hydronium ions in solution. Switch between logarithmic and linear scales. Investigate whether changing the volume or diluting with water affects the pH. Or you can design your own liquid!
- Subject:
- Mathematics and Statistics, Science and Technology
- Grade Level:
- Secondary, Post-secondary
- Collection:
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PhET Interactive Simulations
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