Learning Task 5 Study the materials inside the box. Choose two materi- als and combine them to make either heterogeneous or homogeneous mix-
tuires
buttons
leaves
vinegar
pasta
spaghetti sauce
food coloring
salt
soil
sugar
FISKARS
water
Heterogeneous
Homogeneous
1.
1.
2.
2.
3.
3.
4.
4.

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.