S3.1.2 For the adult
Seeing small things
How can we see things that are too small for our eyes?
What this chapter teaches
A lens bends light and makes small things look bigger. A drop of water on clear plastic is a simple lens. A microscope has two lenses and the magnifications multiply. Never look at the Sun through a lens.
Three questions to ask
There is no one right wording. Listen for the idea.
- How could you make a magnifier with only water and clear plastic?
- If the eyepiece is 10 times and the objective is 20 times, how many times does the microscope magnify?
- Why must you never look at the Sun through a lens?
After the chapter, the learner can
- Make a magnifier from a drop of water on clear plastic
- Explain how a microscope lets us see cells
What they copy into their notebook
A drop of water on clear plastic is a lens. It makes print look bigger. A microscope has two lenses, and their magnifications multiply. Never look at the Sun through a lens.