Friday, April 21, 2006

Test Yourself

Sample questions from the NAEP Science Assessment run by the National Center for Education Statistics:


1. Animals that reproduce sexually differ from animals that reproduce asexually in that sexually reproducing animals have

A) a larger number of offspring
B) more genetic variation among their offspring
C) offspring that are nearly identical to their parents
D) offspring that are perfectly adapted to their parents' habitat


2. X --> Y + Z + energy
The equation above represents a nuclear decay, in which nucleus X decays into particle Y and nucleus Z and releases energy. Which of the following can explain why energy is released in the decay?

A) The mass of X is less than the sum of the masses of
Y and Z.
B) The mass of X is less than the difference between the masses of Y and Z.
C) The mass of X is greater than the sum of the masses of
Y and Z.
D) The mass of X is greater than the difference between the masses of Y and Z.


3. Air in the atmosphere continuously moves by convection. At the equator, air rises; at the poles, it sinks. This occurs because

A) the Earth's ozone layer is thinner at the equator than
at the poles
B) the Earth's magnetic field is stronger at the poles than
at the equator
C) warm air can hold less water vapor than can cold air
D) warm air is less dense than cold air


Without CHEATING, leave your answers in a comment. I'll post the correct answers later.

Just remember if you cheat and google the answers then you're just a plain ol' idiot, but if you don't know then it just means that you haven't learned enough yet.

14 comments:

Lioness said...

B
C
Either C or D, I tend to leave meteorology to dh or look it up. I'll buy a C, Vanna.

DHammett said...

I came up with B, C and D. I hate to publish those in case I'm wrong. We've homeschooled. ;-)

The Guy said...

I wrote my answers on a junior mint box so I wouldn't see anyone elses first.

B,C,D

Come on, give us some hard ones!

The Guy said...

by the way, the new template looks fine in firefox but I'm sad we couldn't save the background image. Sorry you had to change something that was working just for some off-beat browser users but thanks!

Rae Ann said...

Thanks, Guy, those whiny-ass homeschoolers would like to take credit for the changes but you know we were working on them before they started their wah, wah, wah.

DHammett said...

Whiny-ass homeschoolers? Whiny-ass homeschoolers? Why, you, you, you liberal NEA wonk. ;-)

Rae Ann said...

gee thanks, dh, you just made me spit out my half chewed carrot when I laughed! lol

Rae Ann said...

btw, dh, you're the only person who can get away with calling me that. ;-)

Kat said...

1. b
2. c
3. d

I had to guess at number 2! ack.

mr_g said...

b

C

D

And no, I didn't copy!

Rae Ann said...

Yes, the correct answers are B, C, and D. Thanks for answering! It shows that I have the most intelligent readers!

;-)

The Guy said...

Like I told the librarian, it's not the size of the brain, it's how you use it...

Assorted Babble by Suzie said...

You lost me on X, Y, and Z. (LOL) Perhaps I need to cut back on the meds.

Wow, I came in on this after your commented....hahahaha!!!

P.S. Now I can't even get the word verification right!

Kat said...

Woo hoo! I'm smarter than I thought!