oxidize

“The presence of ferrihydrite tells us something specific about Mars' past environment,” Valentinas said, describing the cold and pH neutral waters that must have existed to oxidize the soil.

From Salon ● Mar. 1, 2025

"Ice is like armor. Melt it and you create windows for groundwater to get into rock that has not seen water and oxygen for millennia, and it will begin to oxidize quite quickly," Manning said.

From Science Daily ● Apr. 23, 2024

These, Borduas-Dedekind explains, oxidize in the air, forming larger molecules that can easily absorb water and form clouds.

From National Geographic ● Feb. 16, 2024

Over time, the shiny brass exterior will oxidize, giving the pencil holder a vintage, worn-in feel.

From Los Angeles Times ● Nov. 1, 2023

Perhaps there is an exotic inorganic chemistry in the Martian soil that is able by itself, in the absence of Martian microbes, to oxidize foodstuffs.

From "Cosmos" by Carl Sagan

When olive oil is exposed to fluctuations in temperature, light and air, which oxidizes the oil to its detriment, its quality diminishes.

From Salon ● Jan. 19, 2025

"The reason tantalum oxidizes is that you have to handle it in air and the oxygen in air will react with the surface," Liu explained.

From Science Daily ● Feb. 5, 2024

Food is an organic compound: it congeals, runs, discolors and oxidizes over time and because of the conditions in the kitchen you’re shooting in.

From Los Angeles Times ● Jun. 9, 2023

A green, fuzzy coating grows on it as its surface oxidizes.

From Science Magazine ● Apr. 20, 2023

"Over time, it partly oxidizes, which keeps providing sites for nutrients to bind to."

From "1491" by Charles C. Mann

They don’t have coffee, but they do have Jeju Island–grown “Regenerative Organic-Certified” black tea oxidized as matcha.

From Slate ● May 8, 2026

“I was talking about stale, oxidized matcha powder, but I completely get that it came off a very wrong way. I chose the wrong words and I really apologize for that.”

From Salon ● May 17, 2025

The result: desktop-worthy close-ups of virus-sized crystals, more than a thousand times finer than a human hair, as they get oxidized and dissolve into the acidic liquid around them.

From Science Daily ● Apr. 11, 2024

However, if the methane is released into an oxygen-rich environment, it can effectively be oxidized and converted into CO2 by microbes.

From Science Daily ● Feb. 29, 2024

A single ray of sunlight pierces the clouds like a spotlight to follow her, and her corroded, oxidized shell peels away, revealing shining copper from head to toe.

From "Challenger Deep" by Neal Shusterman

And a 2016 US government study found perchlorate, an oxidizing agent used in fireworks, had made its way into groundwater and surface water around Mount Rushmore National Memorial, which holds annual July 4 shows.

From Barron's ● Jul. 2, 2026

As described in a paper just published in the journal Advanced Materials, a thin layer of magnesium keeps tantalum from oxidizing, improves its purity, and raises the temperature at which it operates as a superconductor.

From Science Daily ● Feb. 5, 2024

There, parked in a driveway at the rear of a home, is an odd-looking, flat-nosed, miniature-size pickup, rust holes here and there, its red paint oxidizing.

From Seattle Times ● Aug. 25, 2023

In her visually complex raku-fired pieces at Craft Contemporary, she embraces the oxidizing of glazes and leaves imprints of her hands in the clay, emphasizing the collaboration between herself and the material.

From Los Angeles Times ● Jul. 20, 2023

The transition to an oxidizing atmosphere posed a supreme crisis in the history of life, and a great many organisms, unable to cope with oxygen, perished.

From "Cosmos" by Carl Sagan