Captivate students’ attention with four “enlightening” demonstrations about chemiluminescence! • When light is produced without heat, that’s cool! Pour two solutions together to illustrate the light-producing reaction that takes place when luminol is oxidized.
- Astonish students with Energetic Lights’ ability to exhibit luminous longevity!
- Students will be de“lighted” as the same solutions appear a different color when exposed to a black light than when exposed to white light.
- Ignite students’ understanding of atomic emission! Observe the different color light produced as various salts are heated to their excited states.
Chemiluminescence, oxidation–reduction, catalysts, fluorescence, absorbance, transmittance, emission, excited versus ground states, atomic emission. Time Required:
One full class period. Chemicals Provided:
Calcium chloride, copper(II) chloride, energetic light solution, eosin Y solution, ethyl alcohol, fluorescein solution, hydrogen peroxide, luminol, potassium ferricyanide, rhodamine B solution, sodium chloride, sodium hydroxide solution, tonic water.
Materials Included in Kit:
Calcium chloride, flake, 50 g
Copper(II) chloride, 20 g
Energetic light solution, 500 mL
Eosin y solution, 1%, 30 mL
Ethyl alcohol, 95%, 250 mL, 2
Fluorescein solution, 1%, 30 mL
Hydrogen peroxide, McKesson®, 3%, 8 oz
Luminol, 1 g
Potassium ferricyanide solution, 0.6%, 500 mL
Potassium ferricyanide, 5 g
Rhodamine B solution, 1%, 30 mL
Sodium chloride, lab grade, 50 g
Sodium hydroxide solution, 5%, 500 mL
Tonic water, 1 L
Wood splints, pkg/30
Correlation to Next Generation Science Standards (NGSS)†
Science & Engineering Practices
Using mathematics and computational thinking
Constructing explanations and designing solutions
Disciplinary Core Ideas
MS-PS1.B: Chemical Reactions
MS-PS4.A: Wave Properties
MS-PS4.B: Electromagnetic Radiation
HS-PS1.B: Chemical Reactions
HS-PS4.B: Electromagnetic Radiation
Energy and matter
Stability and change
MS-PS4-2. Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
HS-PS4-4. Evaluate the validity and reliability of claims in published materials of the effects that different frequencies of electromagnetic radiation have when absorbed by matter.