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.
But wait a second and think. The Moon follows the Earth around the Sun in its orbit, and if you didnât have the Earth, the Moon would really be orbiting the Sun. So can we say that the Moon is really orbiting the Sun? No. But the case is pretty compelling. First, take a look at the orbital velocity of the Moon. The Moonâs velocity around the Moon is a mere 1 km/second. But the Moonâs velocity around the Sun is 30 km/sec; same as the Earth. And hereâs something stranger. the Moon doesnât follow a spiral pattern around the Sun, as you would think, but it always follows a convex path compared to the Sun.