engineered

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

"The students are engineering a new system for managing their study group projects. "

"The engineers designed a new water filtration system for the school. "

"The arrangement of chairs in the classroom made it easier for the students to see the teacher. "

"The scientist carefully examined the substance to determine its chemical composition. "

"Scientists study plants to understand how they grow. "

"Loops and conditional statements are constructs in computer programming."

"research methodology"

"The moving company used cardboard boxes to pack all the family's belongings. "

"The factory manufactured thousands of toy cars every day. "

"The old-fashioned egg beater was a clever contrivance for mixing ingredients. "

"The farmer used pesticides to kill the insects eating his crops. "