Classroom Resources: Solutions


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26 – 50 of 121 Classroom Resources

  • Mixtures, Melting Point, Freezing Point, Phase Changes, Freezing Point Depression | Middle School, High School

    Lab: How does Salt "Melt" Ice?

    In this lab, students will consider why salt is used to aide in snow clearing and to help keep icy roads safe. They will investigate how salt ‘melts’ ice and determine the best type of salt to do so. Additionally, students will explore the advantages and disadvantages of the various different types of salt.

  • Mixtures, Chemical Change, Physical Change, Matter, Mixtures | Elementary School

    Activity: Chemistry in the Kitchen!

    In this activity, students will describe the steps required to complete a recipe of their choosing. They will identify any physical and chemical changes that occur throughout the process.

  • Density, Mixtures, Solubility | Middle School

    Lab: Investigating Density within Lava Lamps

    In this lab students will make a simple yet spectacular lava lamp while focusing on the density of the components.

  • Intermolecular Forces, Physical Change, Intermolecular Forces | High School

    Demonstration: Intermolecular Forces & Physical Properties

    In this demonstration, students observe and compare the properties of surface tension, beading, evaporation, and miscibility for water and acetone.

  • Concentration, Molarity | High School

    Activity: Particle Level Molarity

    In this activity, students are introduced to molarity at the particle level. Students will activate their prior knowledge by demonstrating their understanding of concentration by preparing several Kool-Aid drinks, and then applying that information at the particle level to various models.

  • Observations, Physical Properties, Mixtures, Solute & Solvent, Mixtures | Middle School

    Lesson Plan: How Fast Does it Flow?

    In this lesson students explore the viscosity of different mixtures. They measure viscosity of different mixtures and then have the opportunity to design a mixture to attain a particular viscosity. Students will relate their lab experience to the application of viscosity in the real-world as they consider the differences in viscosity between different types of paints.

  • Concentration, Electromagnetic Spectrum, Beer's Law | High School

    Lesson Plan: Using Color to Identify an Unknown

    In this lesson students will utilize spectrophotometry to identify the wavelength of maximum absorbance for a food dye. They will also generate a Beer's Law Standard Curve, and utilize their skills to identify the different dyes and their concentrations in an unknown mixture. The lesson culminates with an extension to utilizing a similar method in color matching paint.

  • Precipitate, Reaction Rate, Reduction, Redox Reaction, Chemical Change, Oxidation, Solubility Rules | High School

    Lesson Plan: Removing Copper Stains from Masonry

    In this lab, students investigate the use of milk of magnesia poultice to remove copper stains on masonry in copper architecture. They use chalk as the model for masonry, copper(II) chloride solution as a model for soluble copper and a freshly prepared slurry of copper phosphate as a model for a hard stain of copper on masonry. Through a series of investigations students have the opportunity to connect chemistry topics with real-world applications, such as environmental hazards, engineering practices of copper architecture, corrosion control, and structural protection.

  • Separating Mixtures, Physical Properties, Mixtures, Solute & Solvent | Middle School, Elementary School

    Lab: What Does Ironman Eat for Breakfast?

    In this lab students will compare and contrast mixtures and solutions. They will be tasked with extracting iron from various breakfast cereals. They will then conclude which cereal would be the healthiest for Iron Man to eat for breakfast.

  • Precipitate, Electron Configuration, Valence Electrons, Balancing Equations, Classification of Reactions, Solubility Rules, Electrons | High School

    Lesson Plan: Transition Metals Color the World

    In this lesson students will complete a series of double replacement reactions to form precipitates. The precipitates will be used as a pigment to create paint.

  • Physical Properties, Concentration, Beer's Law | High School

    Lesson Plan: Introduction to Color

    In this lesson students explore the properties related to color and how those properties vary with changes in concentration. This lesson introduces the use of a spectrophotometer to measure wavelength and absorbance in colored solutions as well as the use of Beer’s Law to determine an unknown concentration.

  • Precipitate, Net Ionic Equation, Classification of Reactions, Solubility Rules | High School

    Lesson Plan: Do it Yourself Color!

    In this lesson students will use solubility rules to predict whether the product of a double displacement or metathesis reaction will produce a precipitate. Students will then investigate a series of reactions to verify solubility rules. Finally students will determine the identity of unknown solutions based on experimental evidence.

  • Separating Mixtures, Mixtures, Molecular Structure, Solute & Solvent | High School

    Lesson Plan: What Type of Mixture is Paint?

    In this lesson students will use simple laboratory tests to characterize differences between solutions, colloids, and suspensions. They will then apply those tests to paints to classify them as specific types of mixtures.

  • Concentration, Reaction Rate, Reduction, Redox Reaction, Chemical Change, Oxidation, Beer's Law | High School

    Lesson Plan: Rustbusters! A Lab Activity on Corrosion

    In this lesson students learn about factors affecting the rate of corrosion and evaluate the efficiency of different protective coatings to simulate products used in industry when building metal structures like ships or bridges.

  • Mixtures, Molecular Structure, Electromagnetic Spectrum | High School, Middle School

    Video: What are Pigments? Video

    This video discusses the chemistry of pigment molecules and how they are used to give paints their specific color. Students will learn about the importance of a pigment’s molecular structure, how they are physically suspended to create a paint color, as well as how they interact with light.

  • Mixtures, Intermolecular Forces, Molecular Formula, Polymers, Molecular Structure, Solute & Solvent, Intermolecular Forces, Electromagnetic Spectrum | High School, Middle School

    Video: What is Paint? Video

    This video investigates the composition of paint, while analyzing the fundamental chemistry principles of its main components. Students will learn about the differences between three common paint types, water colors, oil-based and acrylic paint as well as the chemistry of each.

  • Observations, Physical Properties, Mixtures | Elementary School

    Lab: Ferromagnetic Fluid

    In this lab students will investigate the properties of ferromagnetic fluid and magnetism. Students will also have the opportunity to complete research about magnetic properties to help answer analysis questions.

  • Observations, Physical Properties, Mixtures, Polarity | Elementary School

    Demonstration: Colorful Milk

    In this demonstration, students will observe as the teacher creates several colorful mixtures. Using food coloring, water and milk, students will watch the colors swirl and mix. Students will have the opportunity to make a prediction about what will happen to the colors when a sample of soap is introduced to the mixture.

  • Concentration, Reversible Reactions, Le Châtelier's Principle | High School

    Lab: Le Chatelier’s Soda

    In this lab, students will observe how the equilibrium of a chemical reaction is affected when a change in pressure, temperature, and concentration is applied to the system.

  • Concentration, Solute & Solvent, Chemical Change | Middle School, Elementary School

    Demonstration: Soft Eggs

    In this demonstration, students will first observe a reaction between vinegar (acetic acid) and an egg shell (calcium carbonate) to produce a naked egg. Using these eggs, student will analyze how certain substances can move through a membrane and also determine if the membrane is affected.

  • Observations, Physical Properties, Mixtures, Chemical Properties, Separating Mixtures | Middle School, Elementary School

    Lesson Plan: Clean-Up Pond Pollution

    In this lesson, students will compare polluted and filtered water to observe how filtering can remove some kinds of pollutants. Students will also be asked to consider how people affect ecosystems and use the scientific method to conduct an experiment on polluted water.

  • Concentration, Molarity, Titrations, Indicators | High School

    Demonstration: How to Perform a Titration

    In this demonstration, the teacher will show how a titration is set-up and performed. Also, the teacher will utilize different indicators to show how they work and why they are necessary. At the end of the demonstration, the teacher will also explain how to calculate the molarity of the unknown substance.

  • Mixtures, Reaction Rate, Chemical Change | Elementary School

    Lab: The Disappearing Color

    In this lab, students will create a solution to observe a chemical change between food coloring in water and bleach. They will also develop the process skills of predicting, observing, and measuring temperature.

  • Mixtures, Freezing Point, Phase Changes | Elementary School

    Lab: Coffee Creamer Ice Cream

    In this lab, students will investigate how dissolving salt (sodium chloride) in water changes the freezing point of the solution. While investigating this, they will make ice cream from small coffee creamer cups.

  • Solubility, Molecular Structure, Buffers | High School

    Lab: Aspirin Tablets: Are they all the Same?

    In this lab, students will design an experiment to test the time and completeness of dissolution of various types of aspirin in different pH environments.

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