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It's your choice.

1. Approximately how many atoms are in the human body?

(A) 10 trillion

(B) 10 quintillion

(C) 10 septillion

(D) 10 octillion

2. Scientists in Austria managed to instantaneously transport which two particles?

(A) electron and photon

(B) electron and proton

(C) photon and neutron

(D) proton and neutron

3. A mass spectrometer --.

(A) scans sick patients to diagnose what ails them

(B) identifies chemical compounds in the air

(C) injects medicine

(D) bends space

4. Which of Einstein's theories makes warp speed possible?

(A) Theory of space warping

(B) Theory of special relativity

(C) Theory of general relativity

(D) Theory of space travel


1. d 2. a 3. b 4.c

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Title Annotation:atoms, mass spectrometer
Publication:Science World
Article Type:Brief article
Geographic Code:1USA
Date:May 11, 2009
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