A convex lens.
convex lens
Pinhole camera
A microscope uses an objective lens and an eyepiece lens to magnify tiny objects for closer examination. The objective lens gathers light from the specimen and forms an enlarged image, which is further magnified by the eyepiece lens for viewing.
The lens in an electron microscope focuses and magnifies the electron beam to produce high-resolution images of tiny objects.
Pin-hole camera (camera obscurer)
You would use a microscope
The lens concentrates the sun's rays into a tiny point of heat, which causes a match or other combustible material to ignite.
It works harder with salt. The Kidney needs water to be healthy, and our bodies need salt but only a tiny, tiny amount each day.
The high-power objective lens; which magnifies the specimen about 40x (depending on the microscope) and the low-power objective lens; which magnifies the object about 10x. If you arn't familiar with the given terms then look them up, there are probably answers on this website.
By using a hand lens/magnifying glass or by using a microscope Olga Uganhoffen
sulphonated starch works as a enzyme that braeks food down into tiny particles
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