Question

scientific method, conversions, classification test retake
which question would be the best high level scientific question?
how long ago did dinosaurs live on the earth?
who made the first microscope?
how many giraffes live in africa?
does the amount of salt in water affect the temperature at which it boils?

Explanation:

A high - level scientific question should be testable and involve variables. The question about salt in water and boiling temperature can be tested by changing the amount of salt (independent variable) and measuring the boiling temperature (dependent variable). The other questions are more about facts or historical information.

Answer:

Does the amount of salt in water affect the temperature at which it boils?