centrifuge

"Separate the articles from the headings."

"My friend told me there was something in the box, but I didn't know what it was yet. "

"The entire apparatus for building a birdhouse, from the saw to the nails, was carefully laid out on the workbench. "

"The ingredients, like flour and sugar, are the main constituents of the cake batter. "

"My dream is to work as an engineer on future spaceflight projects, designing rockets that will take people to Mars. "

"The computer technician fixed the broken printer in the school library. "

"The Jews are dispersed among all nations."

"The spacecraft carried astronauts to the International Space Station. "

"The astronaut trained for years before her mission to the moon. "

"Asphalt, composed of oil and sand, is a widely used material for roads."

"My brother normally gets up early for school. "

"a falling body moves toward the earth with an acceleration of velocity"