Thin Lens Equation #3-Both Types
In this thin lens activity, high schoolers answer 21 questions about diverging and converging lenses and the images they produce.
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New Review Finding the Focal Length of a Lens Using the Ray Box
The iPhone 7 has double the focal length on the secondary camera than the iPhone 6, but what is focal length? The fifth lesson in an 11-part series teaches scholars to solve for focal length of a lens using a ray box. After finding the...
11th - 12th Science CCSS: Adaptable
Condensation Polymerization: Preparation of Two Types of Polyesters
College-level or AP chemists use phthalic anhydride to synthesize two different polyesters, one linear and one cross-linked in structure. A detailed materials list and well-written procedures are provided on a lab sheet. Learners write...
11th - Higher Ed Science
Were the babies switched? – The Genetics of Blood Types
Human biology or genetics learners apply their knowledge to a unique situation: two newborn baby girls being possibly switched in the hospital. The engaging activity ends with a Punnett squares assignment in which pupils evaluate whether...
9th - 12th Science
New Review The Three Different Ways Mammals Give Birth
All mammals have warm blood, are vertebrates, breathe with their lungs, have hair or fur on their bodies, and produce milk for their young. But not all mammals give birth to their young in the same manner. Watch a video that explains how...
5 mins 4th - 12th Science CCSS: Adaptable