1. In the space next to each statement, write either "T" for TRUE, or "F" for FALSE. (2 pt. ea.)
T: The temperature increases from the Sun's photosphere into the corona.
T: The number of sunspots varies over about a decade.
T: The number of sunspots varies over centuries.
T: Einstein's formula E = m x c2 explains how the Sun is powered.
F: The Sun converts 4He into 1H to generate energy. (converts 1H into 4He)
2. Circle the term in parentheses that makes the sentence correct. (2 pt. ea.)
A. Protons in atomic nuclei are held together by (electrical attraction/the "strong force"). A: STRONG FORCE
B. The Sun's equator completes a revolution in (a year/24 days). A: 24 DAYS
C. Experiments have found too (few/many) neutrinos coming from the Sun. A: TOO FEW
3. Name the two most common elements in the Sun. (4 pt.)
BONUS: What is the moon's phase now? (4 pt.) 1ST QTR or WAXING GIBBOUS for 4 pt., WAXING CRESCENT for 3 pt.