Classroom Resources: Chemistry Basics
101 – 110 of 110 Classroom Resources
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Polymers, Polymers, Molecular Structure, Physical Properties | High School
Activity: Molecular Spaghetti
In this activity, students will discover how the entanglement in cooked spaghetti depends on the length of the spaghetti strands and relate this discovery to polymeric materials.
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Colligative Properties, Boiling Point, Molality, Concentration, Boiling Point Elevation, Graphing, Accuracy, Physical Properties, Error Analysis | High School
Lab: Changing Water's Boiling Point
In this lab, students will explore colligative properties in a quantitative approach. They will measure the effect of increasing the molality of a salt solution on the solution’s boiling point, and they will graph their data and use the slope of the line of best fit to calculate the boiling point elevation constant of water. There are three versions of the lab, some of which provide more structure and guidance and others of which are more student-driven.
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Gas Laws, Pressure, Ideal Gas, Volume, Graphing, Physical Properties, Error Analysis | High School
Lab: Boyle's Law
In this lab, students stack books on top of a closed syringe and use the volume change to determine the mass of the books.
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Mixtures, Physical Properties, Molecular Structure, Mixtures | Elementary School, Middle School, High School
Demonstration: Analyzing Mixtures
In this demonstration, the teacher will create a sequence of mixtures in a single test tube. Water, oil, food coloring and soap will be used in this demonstration to introduce the concepts of heterogeneous and homogeneous solutions as well as the idea of miscibility. Students will also have the opportunity to analyze the properties, such as surface tension of each component used.
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Chemical Change, Identifying an Unknown, Physical Properties, Chemical Properties, Chemical Change, Experimental Design, Scientific Method | High School, Middle School
Lab: As Easy as Pie
In this lab, students will use chemical and physical properties to identify an unknown powder.
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Chemical Change, Observations, Exothermic & Endothermic, Temperature, Chemical Change, Physical Change, Physical Properties | High School, Middle School
Lab: Observing a Chemical Reaction
In this lab, students will practice making careful observations and measurements while witnessing a chemical change.
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Periodic Table, Physical Properties, Chemical Properties, Observations, Inferences, Chemical Change, Identifying an Unknown, Error Analysis | High School
Lab: Metal, Non-Metal, or Metalloid
In this lab, students will classify several samples of elements as metals, nonmetals, or metalloid based on their physical and chemical properties.
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Periodic Table, Physical Properties, Identifying an Unknown, Ionization Energy, Atomic Radius, Electronegativity | High School
Activity: Mendeleev's Periodic Table
In this activity, students will use their knowledge of Periodic Trends to analyze and identify unknown elements and organize them correctly in the Periodic Table.
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Culminating Project, Review, Physical Properties, Chemical Properties, Periodic Table, History, Interdisciplinary, Electron Configuration, Subatomic Particles, Isotopes, Atomic Mass | High School, Middle School
Project: 21st Century Elements
In this project, students will learn the importance of the elements in our lives. The students will research one chosen element and create a website, a digital comic strip, or a video to explain the important properties of the element as well as why the element is so important to our lives.
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Molecular Motion, Density, Physical Properties, Density, Gas Laws, Ideal Gas, Temperature, Pressure, Volume | Middle School, High School
Simulation: Density
The simulation for the September 2015 issue allows students to investigate the effect of changing variables on both the volume and the density of a solid, a liquid, and a gas sample. Students will analyze the different states of matter at the particle level as well as quantitatively.