Observations Average Temperatures Using this Excel spreadsheet, observe the average temperature for each month in Grapevine.  Then enter in the highest temperature for each day of the year.  Students will compare daily high temperatures to average temperatures throughout the year.  A graph is automatically generated. Click here to download the Excel workbook. Moon Phases After a study of moon phases, students create and predict the pattern of the moon for the next month by creating their own moon phase calendar. Click here to download for Windows. Click here to download for Macintosh. Earth View See what part of the Earth is in darkness and what part is in daylight right now. http://www.fourmilab.ch/cgi-bin/uncgi/Earth/action?opt=-p http://www.fourmilab.ch/cgi-bin/uncgi/Earth/action?opt=-m Moon Phases Simulation http://www.astro.wisc.edu/~dolan/java/MoonPhase.html Weather Chart Printable Introduce a weather chart to your classroom, recording daily highs and lows, monthly averages, and barometric pressure for a part of your daily routine. http://www.pbs.org/edens/etosha/cr_lesson_weather_inst.htm