Quiz Science Year 4

What are the organs we use to breath? (Answers can be more than 1).

• Lungs

• Nose

• Trachea

• Eyes

What is the process called when you breath in the air?

• Inhalation

• Exhalation

Which of the following show the air passage for exhalation?

• lungs --> nose --> trachea

• nose --> trachea --> lungs

• trachea --> lungs --> nose

• lungs --> trachea --> nose

Which of the following will cause faster rate of breathing?

• Dacing

• Sleeping

• Reading a storybook

• watching television

Which process best describes breathing?

• bringing oxygen in and releasing carbon dioxide

• removing wastes from the blood stream

• breaking down food into smaller nutrients

• eliminating germs from the blood

You close your eyes when your friend point the torchlight towards your eye. Which sensory organ involved?

• Tongue

• Skin

• Nose

• Eyes

Why do humans need to respond to the stimuli?

• to avoid injury and save oneself

• to obtain information and to communicate

• to be happy

• To breath in and out

What is your response if you smell an unpleasant smell?

• Cover your mouth

• Cover your nose

• Cover your eyes

• Cover your skin

The diagram shown one of human sense organ. Which of the stimuli is NOT involved?

• touch

• Temperature (hot and cold)

• Pressure

• Sweet

What is the process carried out in the Excretory System?

• The waste

• The urina

• Oxygen gases

• The sweet