Yawning

How does it show that people yawns?

Placing one's ​ (a)   in front of the ​ (b)   during yawning was ​ (c)   ​ ​

• Hand
• Mouth
• Finger
• nose
• Helpful
• Not helpful

How to spell Yawn?

(Y capital letter other are not)

Did they say that?

Scientists explained yawning as a way for the body to take in a large amount of air in order to increase oxygen levels in the blood.

• 
• 
• Of course

• Never

What is a fact about yawning?

• It is something we cannot control.

• it is something only humans do.

• It is a result of boredom.

• It happens after birth.

Scientist FULLY understand why yawning is contagious.

• True

• False

The ________ Action Pattern is a sequence of behavioural acts triggered by a *releasing* stimulus that is unchangeable and usually carried to completion once initiated.

• Fixed

• Broken

• Contagious

• Weird

Why do most people yawn first?

• They are angry.

• They are in school.

• They are tired.

• They are scared.

What does the word "involuntary" mean?

• expected

• unexpected

• within control

• uncontrollable

Which of the following may be a benefit of yawning?

• It warns us of possible attacks by dogs.

• It provides us the carbon dioxide we need.

• It cools our brains.

• It balances the amount of oxygen and carbon dioxide.