The document describes the development of a baby in the womb. It shows diagrams of a baby inside the mother's uterus and placenta, connected by the umbilical cord. The placenta and umbilical cord should be colored orange, while the uterus wall should be colored brown. The placenta allows nutrients and oxygen to move from the mother's blood to the baby's blood, while wastes and carbon dioxide move in the opposite direction, without the two blood supplies mixing. However, some harmful substances like alcohol, chemicals from cigarettes, and viruses can pass through the placenta and affect the developing fetus.

1. In the womb
This drawing shows a baby
inside its mother’s womb.
1. Colour the placenta and umbilical cord in orange.
2. Colour the uterus wall in
brown.
This is a diagram shows how
the blood of the foetus and
the blood of the mother
come close together in the
placenta, but do not mix.
Use these words to fill in the
gaps below:
alcohol foetus mother
opposite placenta blood

2. cigarettes oxygen
To grow the ________ needs nutrients from digested food, it also needs
________. These move from the blood of the __________ to the ________ of
the foetus, in the placenta. Wastes and carbon dioxide move from the
foetus’s blood to the mother’s in the ___________ direction.
The _________ can stop some harmful substances and bacteria reaching
the foetus, but others like ________, harmful chemicals from ____________
and viruses can move across the placenta and affect the development of
the foetus.