Quiz: Scientific method

1. Which of the following statements is a law?

	Higher altitude means lower boiling points for water, all other things held equal.
	An egg takes less time to cook in Baltimore than in Denver.
	An egg cooks in 17 minutes at sea level.
	An egg cooked for 27 minutes in Baltimore was badly overcooked.

2. A number of people become ill after eating dinner in a restaurant. Which of the following statements is a hypothesis?

	Symptoms include nausea and dizziness
	Bacteria in the oysters may have caused the illness.
	Everyone who ate oysters got sick.
	The cooks felt really bad about it.
	People got sick whether the oysters were raw or cooked.

3. The statement, "Osmium has a density of 22.59 g/mL, which makes it the densest element known" is an example of:

	a law		a theory
	a hypothesis		an experimental observation

4. A hypothesis is

	a theory that has been proved
	obeyed under any circumstances.
	a tentative explanation for a natural phenomenon
	a description of a pattern or relationship in experimental data