Classroom Resources: Chemistry Basics


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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.

  • Density, Chemical Change, Elements, Physical Change, Periodic Table, Review, Matter, Mixture | Middle School, Elementary School

    Activity: Chemistry Basics: Crossword Puzzle

    In this activity, students will complete a crossword puzzle by solving each clue that is related to a basic, yet fundamental chemistry topic.

  • Density, Physical Properties, Periodic Table, Review, Mixture | High School, Middle School

    Activity: Chemistry Basics: Advanced Crossword Puzzle

    In this activity, students will complete a crossword puzzle by solving each clue that is related to a fundamental chemistry topic.

  • 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.

  • 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.

  • 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.

  • Separating Mixtures, Density, Physical Properties, Phase Changes, Interdisciplinary, Culminating Project, Matter | Middle School, Elementary School

    Activity: The Castaway!

    In this activity, students use their knowledge of the properties of matter to create and/or design items needed for survival on a deserted island.

  • Density, Physical Properties, Interdisciplinary, Matter, Chemical Properties | Elementary School, Middle School

    Activity: Astronaut on a Mission

    In this activity students will take on the role as a NASA employee on a mission to discover what resources humans need in order to survive on a planet outside of our solar system. Students will come up with a plan including a list of materials and resources needed to sustain life on another planet. They will need to compare each planet and determine which is most ready to support life.

  • Observations, Density, Physical Properties, Matter | Middle School, Elementary School

    Lab: Comparing Density of Liquids & Irregular Solids

    In this lab, students will measure mass and volume, calculate density, and compare the density of given liquids and solids, inferring what causes objects to sink or float in a given liquid. 3-48

  • 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.

  • 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, Density, Chemical Change, Density, Combustion, Chemical Change | Middle School, Elementary School

    Demonstration: Investigating Gas Density

    In this demonstration, students will observe a reaction between baking soda and vinegar in the presence of a burning candle. The initial environment has plenty of oxygen present in order to sustain the candle’s flame; however the reaction will produce carbon dioxide which will cause the lit candle to extinguish. Students will analyze the outcome and compare the presence of the gases in the container and make determinations about the densities of each.

  • Density, Chemical Change, Density, Chemical Change | High School, Middle School, Elementary School

    Demonstration: Fire Extinguisher

    In this demonstration, students will observe a chemical reaction, and see how the product can be used to extinguish a fire.

  • Density, Review | Middle School, High School

    Activity: Round Robin

    In this activity, students solve problems on a series of sheets shared in a group.The activity can be extended beyond the topics of temperature and density. This lesson accompanies an article in Chemistry Solutions.

  • Density, Density | Middle School, High School

    Demonstration: Qualitative Look at Gas Density

    In this demo, students witness three types of gases and observe their relative densities to air.

  • Observations, Density, Sublimation | Middle School, High School

    Lab: Dry Ice (High School)

    In this lab, students perform several small experiments using dry ice and record their observations.

  • Density, Molecular Motion | Middle School, High School

    Lab: Density Lab

    In this lab, students determine the density of several liquids and solids. They then identify an unknown metal by determining its density. They then calculate the percent error within the class for a specific sample.

  • Observations, Density, Interdisciplinary, Scientific Method | Elementary School, Middle School

    Lab: Crush's Dilemma

    In this lab, students explore the concept of density. They will examine the density of a plastic sandwich bag compared to water. Students will create their own experiment and investigate factors that affect floating and sinking.

  • Density, Density | Middle School, High School

    Demonstration: Comparing Gas Density

    In this demonstration, students will observe a reaction between baking soda and vinegar in the presence of a variety of different heights of lit candles. The initial environment has plenty of oxygen present in order to sustain the candle’s flame; however the reaction will produce carbon dioxide which will cause the lit candles to extinguish in order of height. Students will analyze and compare the presence of the gases in the container and make determinations about the densities of each.

  • Separating Mixtures, Density, Chemical Change, Physical Change | Middle School

    Lab: Clean it Up!

    In this lab, students will consider and utilize various separation techniques to purify and reclaim used motor oil.

  • Density | High School, Middle School

    Demonstration: Density Tubes

    In this demonstration, students will have the opportunity to observe and analyze the density of a solution. Students will interpret their observations as they compare the density of the solution with plastic components.

  • Density, Molecular Motion | High School, Middle School

    Simulation: Density Simulation

    In this simulation, students will 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. This lesson accompanies the simulation from the September 2015 issue of Chemistry Solutions.

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Subtopic: Density

Grade Level: Middle School

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