Did you know that some lenses will cast an image on a screen while others will only cast a shadow? Have you heard of Fresnel lenses? Do you know how the lenses in original telescopes were arranged? Watch your students become scientists as they dig into these fascinating questions.
Accompanying videos can be used as you see fit: as background for yourself or as an introduction or review for the students. Check the link below to watch the video and judge for yourself.
• Optics involved in telescopes
Learn to use scientific equipment:
• Diverging and converging lenses
Some of the Skills and Tasks involved:
• Visually recognize the difference between concave and convex lenses.
• Compare and contrast convex and concave mirrors and lenses.
To see the accompanying videos, click here:
More Lenses & Optics: How do eyeglasses help people see?
These experiments are part of a complete unit, titled, Light, Optics, & Color and can be seen here:
Complete Light Unit on TpT
To see companion curricular pieces click here:
TpT Store Light & Color Category
Extensive teacher notes address the many questions that come up. You shouldn’t have to do outside research on this topic unless you want to. Specific charts and graphic organizers have keys.
Each of the three lab experiments will take between 20 and 30 minutes.