I use a microscope for biology experiments.

He was observing the distant birds with binoculars.

He was observing a three-dimensional image using a stereoscope.

He read the small print using a magnifying glass.

The speculum of this bird has a very beautiful color.

In physics class, I learned about the properties of convex mirrors.

This magic mirror came from China.

He attached a new reflector to his bicycle.

He was observing the stars with a telescope.

He is good at reading mirror writing.