seismographs

"The coffee machine automatically dispenses hot water when you press the button. "

"It requires great strength to lift heavy objects."

"The violinist was a master of her instrument."

"My grandfather has a collection of old records that he loves to play on his record player. "

"Scientists study plants to understand how they grow. "

"Keep going in the same direction."

"The duration of the meeting was only thirty minutes. "

"The smoke detector detects smoke and sounds an alarm. "

"The intensity of the music made it hard to concentrate on my homework. "

"Many earthquakes happen in California because it is near a geologic fault. "

"The earthquake shook the school building during recess, causing some minor damage. "

"The location of the school library is on the second floor. "