Lens (Optics)

Summary: To see a tiny object in detail, you need to use a microscope. A microscope magnifies images using lenses (singular: lens). Looking carefully and in detail at an object is called making an observation. To make an observation with a microscope, the object needs to be thin. This is so that Light can travel through it. Sometimes, you might need to add coloured dye. This is to make the object easier to see, like the different types of blood cell in Figure 2. Tags: science student-book-7 biology Created: 2026-05-21 Last Updated: 2026-05-21

Lens (Optics)

To see a tiny object in detail, you need to use a microscope. A microscope magnifies images using lenses (singular: lens). Looking carefully and in detail at an object is called making an observation. To make an observation with a microscope, the object needs to be thin. This is so that Light can travel through it. Sometimes, you might need to add coloured dye. This is to make the object easier to see, like the different types of blood cell in Figure 2.

Source

This concept is from the [Science Student Book 7](Science Student Book 7/Biology/Cells/1.1 Observing cells.md), Biology section.