Students observe the refraction of light by convex lenses and learn why convex lenses produce inverted images. They also look at how lenses are used in various devices, such as projectors and telescopes.

Student Resources

• 5.1 Vocabulary
• 5.2 Making a Projector
• 5.3 Making a Telescope
• 5.4 Section 5 Assessment

Learn by Reading

For additional content-area reading, check out the Houghton Mifflin Science eBook: Grade 3, Unit F, page 61.