1 – 24 of 24 Classroom Resources

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  Density, Observations, Inferences | Elementary School, Middle School, High School

  Activity: Animation Activity: Density Mark as Favorite (2 Favorites)

  In this activity, students will view an animation that explores density on the particulate level. There are opportunities to make qualitative and quantitative comparisons between substances.

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  Combustion, Chemical Change, Balancing Equations, Reaction Rate, Conservation of Mass, Conservation of Matter, Stoichiometry, Limiting Reactant, Chemical Change, Conservation of Matter, Conservation of Mass, Graphing, Error Analysis, Accuracy, Observations, Inferences, Interdisciplinary, Reaction Rate, Catalysts, Measurements, Mole Concept | High School

  Lesson Plan: Clean Air Chemistry Mark as Favorite (19 Favorites)

  In this lesson, students will learn about air pollution and some steps toward mitigating it. First, they will burn a candle and measure its mass and the concentration of CO2 over time. Students will discuss which data set they have more confidence in and why and then use stoichiometry to predict outcomes. Next, students explore incomplete combustion in a model-based worksheet that shows how a lack of O2 in the burning of fuels can produce air pollution. Students work together to interpret the models, define terms, and draw conclusions. Lastly, students work in groups using Lego models to illustrate how a catalytic converter works. They race “Nature” against catalysts “Palladium,” “Platinum,” and “Rhodium” to see what breaks down air pollution molecules fastest.

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  Atomic Radius, Model of the Atom, Atomic Theory, History, Inferences | Middle School, High School

  Lesson Plan: Indirectly Measuring the Atom Mark as Favorite (20 Favorites)

  In this lesson, students will try to determine the radius of one circle and the total area of multiple circles on a piece of paper by indirect measurement. They will relate this to the experiment done by Ernest Rutherford in which he bombarded a gold foil with Alpha particles.

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  Ionic Bonding, Covalent Bonding, Physical Properties, Chemical Properties, Density, Inferences | High School

  Lesson Plan: Murder Mystery Mark as Favorite (3 Favorites)

  In this lesson, students will use their knowledge of the properties of ionic and covalent compounds to examine the evidence from a crime scene. Students will conduct several tests, and compare their data with known data in a collection of SDS documents. Using the evidence from their investigation, students will write a claim, evidence and reasoning statement detailing whether the victim was murdered or died accidentally.

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  Molecular Motion, Temperature, Observations, Inferences | Elementary School

  Demonstration: How Does Temperature Affect Water Molecules? Mark as Favorite (2 Favorites)

  In this demonstration, students will observe models to better understand that temperature affects molecular movements.

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  Chemical Change, Scientific Method, Experimental Design, Observations, Inferences | Middle School, High School

  Demonstration: What Causes Yeast to Ferment? Mark as Favorite (3 Favorites)

  In this lesson, students will observe and verify molasses sugar content as a result of its ability to ferment yeast. They will compare how molasses allows yeast to ferment with other sugar solutions as well as a sugar-free solution.

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  Scientific Method, Observations, Inferences, Intermolecular Forces, Mixtures | High School

  Lab: Magic Milk Mark as Favorite (48 Favorites)

  In this lab, students will investigate the addition of detergent to a mixture of whole milk and food coloring. Students will attempt to explain the cause of their observations. Also, students will have the opportunity to manipulate the experiment and determine how other variables may impact the results.

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  Conservation of Mass, Observations, Inferences, Matter, Error Analysis | High School

  Lab: Investigating Mass Change Mark as Favorite (17 Favorites)

  In this lab, students perform seven different investigations in order to develop an understanding of conservation of mass.

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  Temperature, Molecular Motion, Observations, Inferences | High School, Middle School

  Demonstration: What is Temperature? Mark as Favorite (59 Favorites)

  In this demonstration, students will observe food dye mixing with water at different temperatures.

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  Limiting Reactant, Chemical Change, Conservation of Mass, Stoichiometry, Observations, Inferences, Chemical Change, Exothermic & Endothermic | High School

  Demonstration: Introducing Limiting Reactants Mark as Favorite (14 Favorites)

  In this demonstration, the teacher will perform a series of reactions between acetic acid--vinegar-- and varying amounts of sodium bicarbonate --baking soda--in order to inflate several Ziploc bags. Students will observe the reactions and analyze the quantities of reactants used as well as the results in order to understand the concept of limiting reactants. Students will also determine if the reaction is an endothermic or exothermic process based on their observations.

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  Atomic Spectra, Activity Series, Emission Spectrum, Ions, Electromagnetic Spectrum, Emission Spectrum, Observations, Inferences | High School

  Lab: Flame Test: Going Further Mark as Favorite (57 Favorites)

  In this lab, students will investigate the colors produced when several mixtures of metallic ions are placed in a flame.

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  Density, Density, Observations, Inferences | High School, Middle School

  Demonstration: Qualitative Look at Gas Density Mark as Favorite (6 Favorites)

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

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  Exothermic & Endothermic, Heat, Specific Heat, Temperature, Enthalpy, Calorimetry, Observations, Inferences | High School, Middle School

  Demonstration: Energy in Hot and Cold Packs Mark as Favorite (22 Favorites)

  In this demonstration, students will observe temperature changes in chemical hot and cold packs and discuss processes of endothermic and exothermic changes. They will also see that common household products can be used to make a hot and cold pack.

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  Chemical Change, Observations, Inferences, Chemical Change, Interdisciplinary | Elementary School

  Lesson Plan: Strawberry DNA & CSI Mark as Favorite (7 Favorites)

  In this lesson, students will extract DNA from strawberries and analyze evidence to figure out who perpetrated a petty crime.

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  Density, Density, Chemical Change, Observations, Inferences | High School, Middle School

  Demonstration: Comparing Gas Density Mark as Favorite (7 Favorites)

  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.

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  Density, Observations, Inferences, Measurements, Identifying an Unknown, Error Analysis, Scientific Method | High School

  Lab: Colors of the Rainbow Mark as Favorite (36 Favorites)

  In this lab, students will practice density calculations and put their calculations to test by creating their own density column.

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  Introduction, Inferences, Observations, Scientific Method | High School, Middle School

  Activity: Check Activity Mark as Favorite (15 Favorites)

  In this activity, students develop a theory based on evidence they collect from (fake) cancelled checks to come up with a story of how they are related.

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  Inferences, Observations, Scientific Method | Middle School, High School

  Activity: Black Box Mark as Favorite (3 Favorites)

  In this activity, students will experience how scientists carry out a scientific investigation through inquiry.

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  Chemical Change, Classification of Reactions, Oxidation, Reduction, Redox Reaction, Electrons, Electron Transfer, Observations, Inferences, Chemical Change | Middle School

  Lesson Plan: One Tube Reaction Mark as Favorite (5 Favorites)

  In this lesson, students will observe a chemical change involving oxidation and reduction.

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  Chemical Change, Solute & Solvent, Observations, Inferences, Physical Change, Identifying an Unknown | Elementary School

  Lesson Plan: Alien Invasion? Mark as Favorite (2 Favorites)

  In this lesson, students will explore both physical and chemical changes as they try to help the Department of Homeland Security analyze and identify materials found in a mysterious capsule. Students will examine and observe an unknown object (a frozen water balloon) as it changes (melts). They then mix combinations of everyday substances to observe chemical changes.

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  Observations, Inferences, Scientific Method | High School

  Demonstration: Observations vs. Inferences Mark as Favorite (4 Favorites)

  In this demonstration, students will learn the the difference between observation and inferences.

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  Melting Point, Elements, Matter, Density, Chemical Properties, Periodic Table, Inferences | Elementary School

  Lesson Plan: Mystery Metals Mark as Favorite (0 Favorites)

  In this lesson, students will make measurements, calculations, and inferences to help solve a mystery about the identity of an unknown metal.

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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 Mark as Favorite (78 Favorites)

  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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  Density, Observations, Inferences, Mixtures, Mixtures | Middle School, High School

  Demonstration: Density Tubes Mark as Favorite (3 Favorites)

  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.