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Season & Solar Angle
| Question | Answer |
|---|---|
| the name given for those two days that are the shortest and the longest of the year | solstices |
| the name given for those two days that have equal day and night hours | equinoxes |
| causes day and night | earth's rotation |
| causes seasons | the earth's tilt on its axis |
| the seasons when solstices occur | summer and winter |
| the seasons when equinoxes occur | spring and fall |
| the longest day of the year | June 21st |
| the shortest day of the year | December 21st |
| the way a light beam covers a larger area when it hits a surface at an angle | beam spreading |
| The angle at which light strikes a surface | solar angle |