An unseen world exists inside a drop of water.

Parasites, fungi, amoebas, and toxin gobblers (called rotifers and copepods) feast and swim in 1.5 sextillion (a number with 21 zeroes) water molecules contained in a single sparkling droplet. Invisible predators prey upon other microbes within this one .05 milliliter-sized drip.

Now—consider the millions of creatures paddling and slithering in ponds, puddles, fog, sinks, reservoirs–and tap water. We guzzle our bottles of Perrier and Aquafina without a thought of the thriving microbes inside.
In 1674, a Christian lay scientist by the name of Antoni van Leeuwenhoek used a homemade microscope to observe the undiscovered world of microbes. He named these tiny creatures “animalcules.”
Along with running a textile business, van Leeuwenhoek spent his life peering through tiny lenses that he fashioned himself. He is known as the father of microbiology, and expressed his belief that:
“From all these observations, we discern most plainly the incomprehensible perfection, the exact order, and the inscrutable providential care with which the most-wise Creator and Lord of the Universe had formed the bodies of these animalcules…” Schierbeek, Measuring the Invisible World: The Life and Works of Antoni van Leeuwenhoek, 1959
Van Leeuwenhoek is one more Christian “giant” upon whose shoulders our scientists stand today. https://answersingenesis.org/creation-scientists/profiles/antony-van-leeuwenhoeks-microscopes-creation-magnified/