Classroom Resources: Quantitative Chemistry
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Density, Measurements  High School
Lab: Can it Float?
In this lab, students will investigate the relationships between mass, volume, density and buoyancy in common objects. Students will be tasked with determining the volume of a variety of objects as well as interpreting the meaning of their buoyancy in water.

Density, Measurements  Middle School, Elementary School
Lab: Weight Just a Minute!
In this lab, students will learn how volume and mass affect density as they make comparisons and calculations.

Mixtures, Interdisciplinary, Concentration, Measurements, Scientific Method  High School, Middle School
Lab: Effect of Salt Concentration on Plants
In this lab, students will observe how salt concentration can affect the structure of a potato tuber.

Density, Percent Composition, Accuracy, Dimensional Analysis, Measurements, Scientific Notation, Significant Figures, SI Units  High School
Lesson Plan: Chemical Measurement Unit Plan
The AACT High School Classroom Resource library has everything you need to put together a unit plan for your classroom: lessons, activities, labs, projects, videos, simulations, and animations. We constructed a unit plan for introducing concepts student need to collect and use chemical measurements: Percent Composition, Metric Units, Accuracy and Precision, Percent Error, Density, Scientific Notation, Significant Figures, and Unit Conversion. This unit is designed to be used at beginning of the school year and modified based on student math abilities.

Dimensional Analysis, SI Units  High School
Lesson Plan: Dimensional Analysis and Unit Conversion
In this lesson, students will learn how to use dimensional analysis for unit conversion problems. They will then practice the skill on several chemistrybased conversion problems.

Density, Accuracy, Measurements, Significant Figures  High School, Middle School
Lab: Significant Figures and Lab Data
In this lesson, students will use laboratory equipment of different precision to collect data for several different metals, and then use the data to calculate the density of each. They will then compare their calculated densities to accepted values and determine the combination of equipment that leads to the most accurate calculation of density.

Limiting Reactant, Dimensional Analysis  High School
Lesson Plan: Map to Solving Limiting Reactant Problems
In this lesson, students will learn how to follow a stepbystep problem solving method for limiting reactant stoichiometry problems. This method can be particularly beneficial for students who struggle with completing these calculations.

Physical Properties, History, Accuracy, Temperature  High School, Middle School, Elementary School
Video: The Temperature Guys Video
This video tells the story of how temperature as we currently know it evolved. The first thermometers invented in the early 1600s are very different than ones we use today!

Stoichiometry, Conservation of Mass, Limiting Reactant, Mole Concept  High School
Animation: Limiting Reactant Animation
In this animation, students will visualize on the particulate level what happens in a limiting reactant problem. A number of limiting reactant scenarios are animated, including a simple example of how to build a bike to introduce the concept of limiting reactant. Conservation of mass is also demonstrated by calculating masses from the mole quantities of the reactants and products. **This video has no audio**

Density, Physical Properties, Measurements, Matter  High School, Middle School, Elementary School
Animation: Density Animation
"In this animation, students will visualize density on the particulate level. There are opportunities to make qualitative and quantitative comparisons between substances. **This video has no audio**"

Observations, History, Conservation of Mass, Measurements, SI Units  High School, Middle School, Elementary School
Video: Antoine Lavoisier Video
This video tells the story of Antoine Lavoisier who many consider to be the father or modern chemistry. Lavoisier discovered oxygen and hydrogen and first proposed the Law of Conservation of Mass.

Gas Laws, History, Mole Concept, Measurements, Ideal Gas  High School
Video: Amedeo Avogadro Video
This video tells the story of Amedeo Avogadro, the scientist given credit for the mole concept, but who discovered other things in chemistry too.

Dimensional Analysis, Scientific Notation, SI Units  High School
Lesson Plan: Using Scientific Notation in Chemistry
In this lesson, students will solve a variety of realworld problems using scientific notation. Students will listen to a convoluted radio conversation about coffee which will relate to a mathbased problem that this lesson is developed around. Students will begin to recognize the benefits of using scientific notation in their calculations.

Dimensional Analysis  Middle School, High School
Activity: Unit Conversion Online Tutorial
In this activity, students will interact with a webbased tutorial that uses a drag and drop interface in order to learn how to convert between units of measurement using dimensional analysis. The tutorial allows students to learn at their own pace, and also provides feedback while they are solving problems.

Mole Concept  High School
Lab: It's Mole Time!
In this lab, students determine the number of moles of chalk used to write their name, the moles of sucrose ingested while chewing gum, and the moles of alcohol evaporated when using hand sanitizer.

Significant Figures, Titrations, Strong vs Weak  High School
Lab: Titration Lab with Kinetics
In this lab, students calculate the molarity of an unknown using a titration and also by solving for a dilution.

Density, Measurements  High School
Lab: Investigating the Density of an Irregular Solid Object
In this lab, students will use common laboratory equipment to devise a method to measure the density of several irregular objects. They will then create a formal laboratory report using both their own data and data from the entire class.

Mixtures, Solubility, Percent Composition, Concentration, Solute & Solvent  Middle School
Lab: The Perfect KoolAid Concentration
In this lab, the students will investigate how the concentration of a solution affects its properties such as color and taste.

Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis  High School
Activity: Sweet Stoichiometry Reactions
In this activity, students will use candy to investigate stoichiometry and molegram relationships in chemical equations, but could also be used to introduce the concept of limiting reactants.

Stoichiometry, Dimensional Analysis  High School
Lesson Plan: Stoichiometry Setup Method
In this lesson, students will learn how to follow a process of visual cues in combination with a stepbystep problem solving method for different types of stoichiometric problems. This method can be particularly beneficial for students who struggle with completing multistep calculations.

Accuracy  High School
Lab: Glassware Accuracy
In this lab, students use different types of laboratory glassware to measure 50 mL of water and determine the accuracy of each piece of glassware.

Scientific Notation  High School
Activity: Scientific Notation
In this activity, students are actively involved in putting numbers into scientific notation and taking numbers out of scientific notation.

Concentration, Molarity, Percent Yield, Stoichiometry, Classification of Reactions, Limiting Reactant, Mole Concept, Chemical Change, Dimensional Analysis  High School
Demonstration: First Day Review
In this demonstration, students see evidence of a chemical reaction.

Concentration, Precipitate, Net Ionic Equation, Balancing Equations, Stoichiometry, Limiting Reactant, Mole Concept, Dimensional Analysis  High School
Lab: Finding CO<sub>2</sub> Mass in your Breath
In this lab, students will measure how much carbon dioxide they exhale by reacting their exhaled breath with lime water (calcium hydroxide).

Observations, Density, Temperature, Gas Laws, Density, Pressure, Measurements, Matter, Volume, Graphing  High School
Lab: Pressure Bottle
In this lab, students determine the relationship between volume and pressure of a gas and its temperature and address the common misconception that air does not have mass or density.