Sometimes, it is not ###### you say. It is ###### you say it.

That ###### certainly true for politicians ###### leaders. Scientists have been ###### how they speak. It ###### out that many leaders ###### the same. They use ###### same tricks.

Scientists studied ###### speeches of Hillary Clinton, ###### Fiorina, Bernie Sanders and ###### Trump. These four have ###### been running to become ###### next president. They have ###### different ideas.]]>
Sound Advice

###### need to be good ######. They speak to everyone ###### schoolchildren to very old ######. Good speakers can make ###### anything sound interesting. Leaders, ###### have to talk people ###### following them, need to ###### able to sound good.

How do leaders do this? ###### answer, scientists studied both ###### and volume. A high ###### sounds like a flute ###### whistle. A low pitch ###### like a drum.

The ###### studied how leaders sounded ###### three different settings.]]>
Something In Common

The study ###### that the four leaders, ######, Fiorina, Sanders and Trump, ###### changed their voices in ###### same ways.

When speaking ###### large crowds, they used ###### low and high voice ######. This made them sound ######. They also used both ###### and quiet voices.

Large ###### have many different kinds ###### people. Leaders change their ###### to sound likable to ######.

Sometimes They Speak In A Normal Tone

The leaders used lower ###### when speaking with other ######.]]>
###### study shows that many ###### sound like each other. ###### sound different, though, depending ###### whom they are talking ######.

Next, scientists will look ###### leaders in other countries. ###### want to see if ###### in other countries use ###### voices like those in ###### United States.]]>