The __________ asks a series of questions to the __________.

• I measure the force of your blood inside your body. • If I’m too high or too low, it can be dangerous. • I’m often checked using an arm cuff.

The suspect showed increased __________, a faster __________, and sweating when asked about the stolen money.

Before starting the test, the examiner recorded the subject’s __________ to compare later results.

The police only asked __________ questions about the crime, not about the suspect’s personal life.

If someone is sick or scared, their __________ might be naturally high, which can affect the test.

A __________, also known as a lie detector, records multiple physical signals at once.

• I’m another name for a lie detector. • I’m a machine with wires and sensors. • I test your truthfulness using your body’s reactions.

• I measure how fast your heart is beating. • I can go up when you're nervous or exercising. • Doctors and lie detectors both track me.

A __________ is used during criminal investigations to determine if someone is lying.

During the job interview, the __________ looked nervous and avoided eye contact.

When someone is nervous, their __________ may increase and they may start to sweat or show __________.

• I happen when your body sweats. • I increase when you're hot, scared, or nervous. • A polygraph can detect me.