Question: Does the density of helium cause voices to sound deeper?, Answer:No, Description of Helium: Chemical element with atomic number 2, Fact1: Helium is less dense than air., Fact2: Sound travels more quickly through helium than it does through air. , Fact3: When sound travels more quickly, the tone of it raises and sounds higher.
Step1: What is the density of helium compared to air?, Step2: As a result of #1, what is the speed in which air travel throughs helium compared to air, Step3: When #2 happens, does the tone go deeper?, Wikipedia page for step 1: Helium, Wikipedia page for step 2: Helium, Wikipedia page for step 3: Sound, not_definitive_answer: False, incorrect_answer: False