Questions with the keyword 'state'

• If you breath in helium how does the helium give you a higher pitched voice? by 09masseyo to Claudia, Phil Comments: (No comments so far )
• Is it possible for gas to turn to a solid? by issi759 to Alessandro, Angela, Claudia, Marina, Phil Comments: (No comments so far )
• I notice when I boil a pot of water, it makes a hissing sound, and after about 5 minutes it almost stops, then it by nicenadia to Alessandro, Angela, Claudia, Marina, Phil Comments: (No comments so far )
• When cheese melts is it just a physical change or does it also go through a chemical change? by nicenadia to Alessandro, Angela, Claudia, Marina, Phil Comments: (No comments so far )
• I had some aluminum foil in the oven for ~20 minutes, but when i took it out it wasn’t even hot. How can that be? by nicenadia to Alessandro, Angela, Claudia, Marina, Phil Comments: (No comments so far )