Science 8 . Chapter 9: Fluids U nder Pressure. 9.1 Fluids Under Pressure A Problem with a Natural F luid S ystem. •Some infants are born with a condition known as hydrocephalus .
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Chapter 9: Fluids Under Pressure
•Some infants are born with a condition known as hydrocephalus.
•A normal brain has fluid surrounding it, this fluid cushions the brain. In hydrocephalic babies there is too much fluid surrounding the brain and the excess fluid creates an increase of pressure inside the skull, causing a bulging skull, seizures, and even brain damage.
•Treatment = a tube is inserted in to the abdomen or another part of the body to drain the fluid.
•A check valve in the tube helps ensure that the pressure in the brain is correct and the fluid does not flow in the wrong direction.
= one atmosphere or 1Atm
Questions# 1-5 ( number 6 is a bonus)
Workbook pages 130-133
Questions# 1-4, 6
Workbook pages 136, 138, 139
Workbook 143, 145