Brenda's science teacher has asked the class to develop a research question for the yearly science project competition. brenda is interested space and writes down several possible research questions for her project. which question was quickly rejected by brenda's science teacher? a) how do scientists use parallax to determine distance? b) what is the history of the big bang theory and is it true? c) what is the effect of altitude on the detection of cosmic rays? d) how does a sidereal pointer allow you to localize objects in the night sky?

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

Earth is tilted on its axis. which of these would not exist if earth had no tilt?

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.