Understanding the Science of Blowing Out Birthday Candles

The video explores the tradition of blowing out birthday candles and its potential health risks. A study by Clemson University found that blowing out candles increases bacteria on cake icing, though the risk of illness is low unless the blower is sick. The video suggests using common sense and offers a Skillshare promotion for baking courses.

What is the traditional action performed after a birthday cake is presented?

• Blowing out the candles

• Cutting the cake

• Making a toast

• Singing a song

What was the main focus of the Clemson University study?

• The nutritional value of birthday cakes

• The tradition of birthday parties

• The bacteria spread by blowing out candles

• The history of birthday celebrations

What did the researchers use to simulate a birthday cake in their study?

• A real cake

• A digital model

• A cardboard cutout

• A styrofoam cake with icing

On average, how much more bacteria was found on blown-on icing compared to untouched cake?

• 15 times more

• 10 times more

• 5 times more

• 20 times more

What factor caused the number of bacteria to vary among individuals in the study?

• The type of cake

• The age of the person

• The number of candles

• The amount of saliva produced

What is a potential risk if the person blowing out the candles is sick?

• The candles might not extinguish

• The cake might fall

• The cake might taste bad

• Spread of illnesses like flu

What common sense advice is given regarding blowing out birthday candles?

• Be cautious if someone is sick

• Avoid birthday parties altogether

• Never eat birthday cake

• Always use a fan to blow out candles

What type of courses does Skillshare offer?

• Courses in design, business, and more

• Only science courses

• Only baking courses

• Only language courses

Who is the host of the baking course mentioned in the video?

• Michael Brown

• Jane Smith

• John Doe

• Sarah Graham

What is the cost of an annual Skillshare subscription for premium access?

• Less than $20 a month

• Less than $15 a month

• Less than $10 a month

• Less than $5 a month