Sunday, February 28, 2010

Brain Development


From http://www.joeallin.ca/early_years.html

By age 5, which of the following skills is in the least sensitive period? Hearing, Numbers, Emotional Control

Which skills are most sensitive at birth?

Which of the skills has its peak latest?

Saturday, February 27, 2010

Credit Card Loyalty

From http://www.creditcardfinder.com.au/australian-consumer-credit-card-banking-survey-2009.html

What percentage of people in this survey had had their credit card from 1-3 years?

Approximately how many people had had their credit card for 11 years or more?

What was the most frequent response?

Friday, February 26, 2010

Snake Oil

 

There is strong evidence that green tea can help with _____________________.

According to this chart, are ginseng or goji worth taking?

For which supplements is there strong evidence that they help with cholesterol?

Thursday, February 25, 2010

Asteroid Discoveries

From http://oklo.org/2006/04/

About how many asteroids were discovered in 1985? In 2000?

Why do you think that asteroid discovery might have peaked around the year 2000 and then declined?

Wednesday, February 24, 2010

Asteroid Distance


From http://burro.astr.cwru.edu/stu/advanced/asteroid.html

About what distance from the Sun in A.U. is the greatest number of asteroids?

Are asteroids evenly distributed?

Approximately how many asteroids are there at 3.0 AU from the Sun?

Tuesday, February 23, 2010

Earthquake Energy

From http://www.americanthinker.com/blog/2008/06/cbs_pulls_unvetted_story_blami.html

What was the anueal energy release in earthquakes in 1905? 1920? 1980? 2000?

Describe the meaning of the black line and the red areas.

Monday, February 22, 2010

Adult HIV prevalence in Africa between

20%-30%
10%-20%
5%-10%
1%-5%
0%-1%
data unavailable


What trend do you see over time?

Which countries have the greatest rates of HIV infection?

Uganda is one of the only countries that has been able to lower its rate of HIV infection. Can you find it on this map?