The Chemical Wizardry Chemical Demonstration Kit is sure to mesmerize your students with spell-binding demonstrations. As students observe the results of your wizardry, they learn important chemical concepts at the same time.
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Mesmerize your students with these spell-binding demonstrations! First, set the mood as you generate the eerie glow of a green flame by sprinkling boric acid over a gel created with calcium acetate and ethyl alcohol. Next, add to the atmosphere of enchantment by transforming a solution into slimy, ghoulish, glowing polymer worms. Complete the spooky scene with a secret message written in blood-red ink made from an iron compound. As students observe the results of your wizardry, they learn important chemical concepts at the same time. Includes detailed Teacher Demonstration Notes and a reproducible student worksheet.
Concepts: Gels, atomic emission, polymers, cross-linking, fluorescence, complex ions, chemical reactions.
Time Required: 30 minutes
Chemicals Provided: Boric acid, calcium acetate, ethyl alcohol, calcium chloride solution, copper(II) chloride solution, fluorescein, sodium alginate solution, iron(III) chloride solution, potassium thiocyanate solution.
Correlation to Next Generation Science Standards (NGSS)
Science & Engineering Practices
Asking questions and defining problems
Developing and using models
Constructing explanations and designing solutions
Engaging in argument from evidence
Disciplinary Core Ideas
MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
MS-PS3.D: Energy in Chemical Processes and Everyday Life
MS-PS4.B: Electromagnetic Radiation
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-PS3.D: Energy in Chemical Processes
HS-PS4.B: Electromagnetic Radiation
Cause and effect
Scale, proportion, and quantity
Systems and system models
Energy and matter
Structure and function
MS-PS1-1. Develop models to describe the atomic composition of simple molecules and extended structures.
MS-PS1-2. Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
MS-PS1-5. Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
MS-PS4-1. Use mathematical representations to describe a simple model for waves that includes how the amplitude of a wave is related to the energy in a wave.
HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
HS-PS1-2. Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.
HS-PS4-1. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.
HS-PS4-3. Evaluate the claims, evidence, and reasoning behind the idea that electromagnetic radiation can be described either by a wave model or a particle model, and that for some situations one model is more useful than the other.