From: Martha Harson (email@example.com)
Date: Mon Mar 17 2003 - 15:31:53 EST
My list of ET questions grows as the year progresses. You would just need to choose those questions that you think are most important. I try to keep the ET questions simple and basic. When problem solving is involved, I change the numbers, but keep the rest of the problem the same. This, of course, doesn't foster the development of higher level thinking, but it does assure that students have some basic knowledge to use in problem solving. My list is too long to send by this method, but here are some examples:
What is the density of pure water at 4 degrees C? _
What does milli mean? __ How many milliliters in 0.25 L?_
What does kilo mean? __ How many grams in 0.5 kg? __
The amount of space that a substance occupies is called its _________.
If an atom has 5 protons and 6 neutrons, what is its atomic number and its mass number.
A neutral atom of U-238 has ____ proton, ____ neutrons, and ____ electrons.
What is the charge on a proton, an electron, a neutron?__
Substances made of only one kind of atom are ________.
Classify as element, compound, mixture. (examples: water,
air, brass, carbon)
Classify as homogeneous or heterogeneous mixture. (examples: air, saline solution, 14 carat gold)
What is the speed of light or other electromagnetic radiation in a vacuum? ______
What is the exact mass of one C-12 atom? __
What is the exact mass of one mole of C-12 atoms? __
How many atoms are in a mole of C-12? __
If you have 0.25 moles of calcium, how many grams of calcium do you have? __
How many molecules are in one mole of water? ____
What is the mass of one mole of water? ______
What is the volume of one mole of water at 4 degrees C? __
Find the percent composition of water. ___
List 5 elemental gases that normally occur as diatomic molecules. ____
If a glass marble has a mass of 8.25 grams and a volume of 3.00 cubic centimeter, what is its density? ______
What would be the mass of a larger marble made of the same glass, but having a volume of 6.00 cubic centimeters?
Hope that is of some help.
----- Original Message -----
From: Kathie Bryant
Sent: Friday, March 14, 2003 10:16 AM
Subject: Re: [Channel-talkchemistry] sequence of topics
Martha, It sounds like you have lots of experience. I was told in January that I would be teaching Chemistry next year. I liked your tip about the questions that can reappear from time to time. Do you happen to have a list of those questions? I would like to use that idea next year, and I may use something like it in my Biology classes from now on. This workshop and all the great tips have been of real benefit to me. Thanks, Kathie