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Sun, Earth, and Moon
| Term | Definition |
|---|---|
| Appearance | the way something looks |
| Cycle | a repeating pattern or process that happens over and over again in a predictable way |
| Autumn | Fall; a season marked by fewer daylight hours and decreasing temperatures |
| Axis | An imaginary line around which objects rotate |
| Earth | A planet that has water and supports living things |
| Revolve | To move around another object |
| Seasons | A pattern of increasing and decreasing light and heat from the Sun each year due to Earth’s tilt and revolution |
| Spring | A season marked by increasing daylight hours and rising temperatures |
| Summer | A season marked by high temperatures and long periods of direct sunlight |
| Sun | A star that provides light and heat on Earth |
| WInter | A season marked by low temperatures and short periods of direct sunlight |
| Crescent Moon | A phase that occurs before and after the New Moon |
| First Quarter Moon | The right half of the Moon appears illuminated in our night sky; the third phase of the lunar cycle |
| Full Moon | The whole Moon appears illuminated in our night sky; the fifth phase of the lunar cycle |
| Gibbous Moon | A phase that occurs before and after the Full Moon |
| Last Quarter | The left half of the Moon appears illuminated in our night sky; the seventh phase of the lunar cycle |
| Lunar Cycle | A series of phases the Moon goes through as it revolves around Earth |
| Moon | A body in space that orbits a planet; a natural satellite |
| New Moon | The first phase of the lunar cycle; the Moon appears invisible in our night sky |
| Orbit | The path an object takes as it revolves around a star, planet, or moon |
| Sequence | The order of objects or events that form a pattern |
| Waning | To shrink or decrease in size |
| Waxing | To grow or increase in size |
| Rotate | when an object turns around its own axis |
| Pattern | a repeated event or sequence |
| Moon Phase | the changing apparent shape of the moon |
| System | a collection of things that work together |