Classroom Resources: Quantitative Chemistry
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Density, Identifying an Unknown, Measurements  Middle School, Elementary School
Demonstration: Household Densities
In this demonstration, students will make predictions about various household materials and whether or not each will sink or float when placed in water. Data will be collected and then used to calculate the density value of each item. Finally students will analyze the relationship between the density value and the observed outcome, and use their knowledge to identify unknown materials.

Review, Dimensional Analysis, Measurements  High School, Middle School
Activity: Dimensional Analysis Show Down
In this activity students will work cooperatively to solve conversion based problems using dimensional analysis. Students are required to independently determine an answer for each question and be able explain their method of solving with their peers. This activity is designed to allow students to work at their own pace, and for students to take on a teaching role by communicating their understanding with their peers.

Observations, History, Conservation of Mass, Measurements, SI Units  High School, Middle School
Activity: Lavoisier Video Questions
In this activity, students will watch a video about Antoine Lavoisier, who many consider to be the father of modern chemistry. They will answer questions as they learn about oxygen, hydrogen, and the first proposal of the Law of the Conservation of Mass.

Physical Properties, History, Measurements, Temperature, SI Units, Accuracy  High School, Middle School, Elementary School
Activity: Temperature Guys Video Questions
In this activity, students will watch a video and answer questions about how both the thermometer and the concept of temperature evolved over time

Conservation of Mass, Measurements  High School, Middle School
Lab: Mass of a Gas
In this lab, students will perform a simple chemical reaction in a closed system to produce a small amount of gas. They will collect mass measurements for the reactants and the products in order to demonstrate the conservation of mass during the reaction. They will also release the produced gas from the closed system in order to verify that gasses have mass.

Observations, Density, Measurements  High School, Middle School
Lab: Penny Boats
In this lab, students will explore Archimedes’ Principle and how it relates to density. Each student will be given a piece of aluminum foil and asked to design and build a boat that will hold as many pennies as possible without sinking when placed in water.

Accuracy, Measurements, Significant Figures, SI Units  High School, Middle School
Simulation: Measuring Volume
In this simulation, students will participate in a 10 question quiz. The quiz questions are each made of two parts, with the first part requiring the student to analyze an image of a graduated cylinder in order to report an accurate measurement. Students must use the correct number of digits based on the markings presented on the cylinder when reporting the measurement. In the second portion of the question the students will determine the uncertainty value of the graduated cylinder, again by analyzing its markings. The simulation is made up of several different sizes of graduated cylinders, each containing unique markings, so students will be challenged to analyze each individually.

Percent Composition, Elements, Periodic Table  Middle School
Activity: The Universe of Elements
In this activity, students are introduced to the periodic table and its elements. Student will discuss that all material in the Universe is composed of elements and that the atom is the smallest particle that still has the physical and chemical properties of any given element. Students will engage in an activity to determine the percent composition of common elements in the universe, and based on their results they will hypothesize the identity of each element based on its relative abundance.

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, 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.

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!

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.

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.

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.

Percent Composition  Middle School, High School
Lab: Percent Composition of M&M's
In this lesson, students explore the idea of percent composition by investigating different varieties of M&M’s.

Separating Mixtures, Percent Composition  Middle School
Lab: Metallic Breakfast
In this lab, students will separate iron filings from ironfortified breakfast cereals. Students will use the recorded data to conduct percent composition calculations.

Percent Composition, Introduction, Percent Composition, Scientific Method  Middle School
Lab: Mass Percent
In this lesson, students will develop a theory of how to calculate percent composition.

Conservation of Mass, Conservation of Mass, Measurements  Middle School, High School
Lab: Mass & Change
In this lab, students will use unified particle pictures of solid, liquid, and gas to explain the law of conservation of mass after carrying out various experiments.