Dry Ice and Sublimation Quiz

What is the primary safety equipment needed when handling dry ice?

• Sandals and a mask

• Sunglasses and a hat

• Heavy gloves and an apron

• A helmet and knee pads

What is sublimation?

• The change from a liquid to a solid

• The conversion of a gas into a solid

• The transition from a solid to a gas without becoming a liquid

• The process of a gas turning into a liquid

Why is sublimation considered an endothermic process?

• It releases more energy than it absorbs

• It requires more energy to occur than it releases

• It happens spontaneously without energy

• It only occurs at high temperatures

What happens to the carbon dioxide molecules as they turn into gas inside the balloon?

• They dissolve into the balloon material

• They contract and make the balloon smaller

• They remain the same size and do not affect the balloon

• They press against the balloon walls, causing it to expand

What should viewers do if they conduct the experiment at home?

• Send a written report instead of a video

• Only watch the video and not try the experiment

• Record the experiment and submit it with parental permission

• Submit a video reply without any permission