Questions with the keyword 'sound'

• why do boys voices get deeper? by eriinwilkinson to Christina, Jess, Steve Comments: (No comments so far )
• Can humans make that high pitched noise that only bats can hear? by 11tabithad to Christina, Colin, Jess, Samaneh, Steve Comments: (No comments so far )
• why do all animals make different sounds and noises by ledw to Christina, Colin, Jess, Samaneh, Steve Comments: (No comments so far )
• why do all of our voices sound different by ledw to Christina, Colin, Jess, Samaneh, Steve Comments: (No comments so far )