NATURAL SCIENCE - YEAR 4
UNIT: BODY SYSTEMS AND HUMAN NUTRITION
LESSON: THE EXCRETORY SYSTEM
And yes! It's time to sing our Unit's song... Show how good you are!!
One question for you... Do you think that our body needs all the substances that we eat or drink?... Well, no... Now we know that our intestines eliminates the rest of food that we don't need... But what happens with the liquid substances? How are they eliminated??
Well, that is the job of the excretory system... And this video shows you how it works:
And this is our lesson's summary:
INTERACTIVE ACTIVITIES:
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