Cosmology: The seasons; Phases of the moon.
It takes 365days-one year-for the Earth to make its journey around the Sun. Because of the angle of the Earth to the sun, the amount of sunshine varies on different parts of the Earth at different times of the year. For example, in June the northern hemisphere receives the most sunshine, therefore northern Africa is warmer with longer days(summer) while southern Africa becomes cooler with shorter days(winter).
In December, southern Africa is warmer and northern Africa is cooler. Uganda is special because it is on the equator. This means that throughout the year the days in Uganda are almost the same length. The length of day and night is equal(12 hours) at all places on the Earth only on one day in March and September. These times are called the Equinoxes.

As the moon circles the Earth each month, the shape of the moon appears to change. This is caused by the Earth’s position relative to the sun and the moon. The sun always shines on the same half of the moon, but on Earth we see different amounts of the lit surface at different amounts of the lit surface at different times throughout the moon, depending on the Moon’s position on its orbit.
The shape varies from full moon(a full circle) to a new moon(when the moon is hardly visible).

by GBBInc