The document summarizes three body systems: the circulatory system, which moves blood around the body; the respiratory system, which involves breathing in air through the nose and mouth and oxygen passing to the circulatory system; and the digestive system, which involves food being taken in through the mouth and passing through the stomach, intestine and circulatory system.

2. Body systems

3. Circulatory system
 Find the mistake in each sentence and write the correct word or words.
A. The circulatory system moves food through the
heart and around the body.
B. Blood gives our body nutrients and carbon
dioxide.
C. The heart is divided in two parts.

4. The respiratory system
 Order the sentences to describe how the respiratory system works.
Air goes down into our lungs.
 We breathe in air through our nose and mouth.
 Oxygen is passed to the circulatory system, where it
moves around our body.

5. The digestive system
 Complete the text about the digestive system using the following words.
 circulatory food waste intestine mouth
 The digestive system is a group of organs that work together
to help us digest_____________.
 We take in food through our___________. It passes down into
our stomach and ______________.
 The intestine separates the nutrients from the ____________ and
expels the waste from our body.
 The nutrients are passed to the ____________ system, where
they move around the body.

6.  Natural Science ByMe
 Ediciones Bilingües S.L.
 MACMILLAN EDELVIVES
 Primary 3 Activity Book