photons

"My grandmother's lifetime of experience made her a valuable advisor. "

"She regarded us warily."

"I have a house and a car."

"Dust particles floated in the sunbeam coming through the window. "

"The student received a small quantum of extra credit for participating in class. "

"an indefinitely determined fossil"

"a government with three discrete divisions"

"The scientist studied the tiny particle of dust. "

"We had to sit in the dark because the electric was cut off."

"The children's energy fueled their excitement for the school trip. "

"The cell phone emits electromagnetic waves that allow us to communicate. "

"Sunlight on the skin gives you vitamin D."