The second molars on the top come in soon after those on the bottom. 3 years. Your child has a full set of 20 baby teeth. 4 years. Jaw and facial bones grow, creating space between the baby teeth for your child's permanent teeth to come in.
As the moon moves eastward around 13 to 15 degrees per day in the sky in its orbit about the earth (there are 360 degrees around the whole sky for it to complete its orbit in 27.3 days), it moves with respect to the background stars noticeably each day, causing it to rise nearly an hour later each day/night when compared to the previous day/night.
The moon's motion through our sky is similar to that of the sun, but different: 1  Like the sun, the moon rises in the east and sets in the west (with some exceptions for observers in earth's extreme northern and southern regions). 2  Like the sun, the moon doesn't move across our sky quite as fast as the stars do. Third, when the moon is in its crescent phase and the sky is sufficiently dark, you can sometimes make out the rest of the moon's dimly lit disk. 2  This tells us that the moon isn't really changing shape; part of it is merely much brighter than the rest.