MY SCIENCE JOURNEY CHOW LAI PENG D045816 W08
CHOW LAI PENG D20102045816 ( W08 ) SCIENCE YEAR 4 BLOG
TERM USED SCIENCE
Lesson 4: Humans Breathe
( A ) HUMANS NEED AIR TO BREATHE
The air that flows into the lungs contains more oxygen and the air that flows out contains more carbon dioxide.
( B ) HUMANS EXCRETE AND DEFECATE
Human excrete urine and sweat to get rid of waste materials from their bodies.
When we defecate, our bodies get rid of undigested food or waste materials called faeces.
( C ) RESPONSE TO STIMULI
Move the hand away from the hot objects
( D ) HUMANS REPRODUCE
Humans reproduce by giving birth to their offspring.
~~MY SCIENCE JOURNEY D045816~~
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