Page 17 - DK Findout! Forest

Photosynthesis

Plants make their own food. To do this, they
mix carbon dioxide from the air with water
and sunlight, then release oxygen as a waste.
This process is called photosynthesis.
Coconut
palms D
Oak tree
Oxygen
Trees give out the gas E
oxygen, which animals need
to breathe. One leafy tree
releases enough oxygen
in its growing season for F
ten people to breathe
for a year.
The Madagascar
periwinkle is
used to make
medicines.

Ginger C

Food and medicine B
Humans have been eating plants
that grow in forests for thousands
of years. Many forest plants can be A
used to make delicious and healthy
food, and some can even be used as
medicines. New uses for forest
plants are being discovered A The roots suck up water from the
even today. ground.
B Water travels up the plant’s stem.

C Carbon dioxide (CO2) enters the leaves.
D Sunlight shines on the leaves.
Bananas
Avocados E The plant uses sunlight to turn CO2
and water into sugar for energy.
Cacao beans are The leaves release oxygen.
used to make F
chocolate.

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