First quarter. Waxing crescent. New moon. Waning crescent. Last quarter. Waning gibbous. Full moon. Waxing gibbous.
This 9 block set shows each of the 8 moon phases. Two debossed sides feature a moon phase and its cycle location. Four printed sides reveal moon rise & set times, tidal effects, a phase illustration, and the moon's location in relation to the sun. This set also includes one bonus block devoted to the lunar eclipse.
Visualize moon cycles in a multidimensional manner. Will you stack and sort these blocks in their monthly order? Or use them to chart the tides? How else might Uncle Goose moon phase blocks inspire you to look at the sky and dream?
- 9 - 1.75 inch cubes
- Made using sustainable Midwestern basswood
- Printed with non-toxic, mouth safe inks
- 100% made in the USA
- Ages 2+
The lunar phase or Moon phase is the shape of the directly sunlit portion of the Moon as viewed from Earth. The lunar phases gradually change over the period of a synodic month (about 29.53 days), as the orbital positions of the Moon around Earth and of Earth around the Sun shift. The Moon's rotation is tidally locked by Earth's gravity; therefore, most of the same lunar side always faces Earth. This near side is variously sunlit, depending on the position of the Moon in its orbit. Thus, the sunlit portion of this face can vary from 0% (at new moon) to 100% (at full moon). The lunar terminator is the boundary between the illuminated and darkened hemispheres. Each of the four "intermediate" lunar phases (see below) is around 7.4 days, but this varies slightly due to the elliptical shape of the Moon's orbit. Aside from some craters near the lunar poles, such as Shoemaker, all parts of the Moon see around 13.77 days of daylight, followed by 13.77 days of " night ". (The side of the Moon facing away from Earth is sometimes called the "dark side of the Moon", although that is a misnomer).