Curated OER
Electromagnetic Spectrum
In this electromagnetic spectrum activity, students review all regions of the spectrum in order from longest to shortest wavelength. Students list all possible values for specific quantum numbers. This activity has 20 problems to solve.
CK-12 Foundation
Ck 12: Physical Science: Conservation of Energy in Chemical Reactions
[Free Registration/Login may be required to access all resource tools.] Describes the law of conservation of energy and how energy is conserved in chemical reactions.