General Chemistry Online: Companion Notes: Introduction: Quiz: Scientific method

Home
Common Compounds
Exam Guide
FAQ
Features
Glossary
Construction Kits
Companion Notes
Just Ask Antoine!
Simulations
Slide Index
Toolbox
Tutorial Index

Companion Notes

Introduction

Scientific method

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

	a hypothesis		a law
	a theory		an experimental observation

2. Which of the following statements is a law?

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

3. A natural law is

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

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

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