formaldehyde

"early specimens of the art of Picasso"

"The application of this cream should reduce the swelling."

"The simplest way to solve the math problem was to use the formula directly. "

"The box containing my old toys was stored in the attic. "

"The water from the well was surprisingly colourless, almost like air. "

"The strong, distinct smell of some cleaning products comes from an aldehyde used as a disinfectant. "

"My grandmother makes a delicious strawberry preserve for breakfast. "

"The movie used a series of dissolves to smoothly transition between Sarah's childhood memories and her present-day reality. "

"My grandfather was a skilled industrial during the 1950s. "

"The science teacher carefully placed the frog into a jar of formalin to preserve it for future study. "

"My son is taking biology classes at school, learning about different types of plants and animals. "

"The lemonade was a clear solution of lemon juice and water. "