The Earth System Crossword Puzzle

QUESTIONS LIST:

• asthenosphere : the partially melted portion of the mantle below the lithosphere
• fracture : the tendency of minerals to break along irregular surfaces
• cleavage : the tendency of minerals to break along smooth, flat surfaces
• mantle : the thick, rocky middle layer of the geosphere
• greenhouse gases : gases in the atmosphere that absorb and reradiate thermal energy from the sun
• luster : the way a mineral's surface reflects light
• carbon cycle : the series of processes that continuously move carbon among earths systems
• phosphorus cycle : the series of processes that move phosphorus among earth systems
• crust : the thin outer layer of the geosphere
• core : the dense, metallic center of earth
• streak : the color of a mineral's powder
• lithosphere : the rigid outermost layer of earth that includes the uppermost mantle and crust