Quiz: Scientific Skepticism

Before doing this quiz, you may be better prepared if you do the tutorial for "What Happens Behind the Scenes" first.
Copy the questions below (highlight the text, then press the CTRL key plus "c", or use the Edit menu at top and choose "Copy") In your email program start composing an email and paste the questions to your email (use CTRL-V to paste or use Edit menu and choose "Paste"). Email your quiz answers to the instructor at chm130@chemistryland.com. Note: If you are far off-base on your answers, I will give some feedback to help you tackle the question again.

Before doing this quiz, you may be better prepared if you do the tutorial for "What Happens Behind the Scenes" first. Copy the questions below (highlight the text, then press the CTRL key plus "c", or use the Edit menu at top and choose "Copy") In your email program start composing an email and paste the questions to your email (use CTRL-V to paste or use Edit menu and choose "Paste"). Email your quiz answers to the instructor at chm130@chemistryland.com. Note: If you are far off-base on your answers, I will give some feedback to help you tackle the question again.
Question 1: The below image is of US soldiers with friends and family watching a small nuclear test in 1962. What is wrong with this audience as far safety is concerned?

	Question 2: Someone has released a huge amount of a black pollutant into the river and no one noticed where it came from. How do you think the polluter was able to hide his or her crime?
	Question 3: China has been quite lax about pollution. Here we see some buildings releasing pollutants. The red stuff is obviously some kind of pollutant but the residents don't seem to pay much attention. Where do you guess these pollutants go?
	On the show, "B.S," with magicians Penn & Teller, they show how blood is attracted to a magnet. Every time Teller moved the big black magnet to one side or the other of the glass tray, the blood would be pulled towards it. Question 4: Actually, blood is not attracted to a magnet despite the little bit of iron in blood and what you saw with Magneto in X-men, so how did they make it look like the blood was attracted to the magnet?
	Question 5: This yogurt is called Peaches & Creme. (a) What do the images on the container imply regarding peaches in the yogurt? (b) Which do you think it has in it, whole peaches, peach slices, peach pieces, peach juice, or none of these? (notice the words at the very bottom of the container)
	Question 6: Below is a MRI (magnetic resonance imaging) machine. The examination table in this picture appears to be about 10 feet long. However, it's not that long. So the image would be misleading to a patient. What kind of lens was used to make this table look much longer than it really is?
	Question 7: Besides tempting unknown psychics with a million dollars, James Randi (a previous magician turned investigator) publicly challenges popular psychics like John Edward of the TV show Crossing Over to come and prove their capabilities. The challenge is the One Million Dollar Paranormal Challenge. According to their website, what is this challenge? Here's the link: www.randi.org/1m-challenge.html
Question 8): The metal used in most spoons melt around 2,000 degrees Fahrenheit. From the picture below how can you tell this not the normal metal that gets put into spoons but rather a low melting metal alloy?
Photo by Charles Shotwell
Below is the follow up spoon gag. Notice the spoon is melting in the hot water. Question 9: Do a search for low melting alloys and find which metals are commonly used. Name at least four.
Photo by Charles Shotwell (For more interesting experiments visit Theordore Gray PopSci Column)
	Question 10: Math challenge with Challenge Butter. The whipped version costs $3.00 for 8 oz (1/2 lb). The unwhipped version costs $4.00 for 16 oz (1 lb.) Question 10a: How much money per oz is the whipped version? Question 10b: How much money per oz is the unwhipped version? Question 10c: Instead of buying a pound of whipped butter, you buy a pound of unwhipped butter and whip air in it yourself. How much money would you save?
When I receive your answer via email, I will record it's been received on the progress sheet. (That's updated about once a day) After grading it, I will email your answers back with my comments. If there are any missed, I will ask for you to redo them; that way you can get 100% on every quiz.