This site is like KidSpiration, but it is free and easy to use. elements story, create-your-own-topic. Source: Liz Phillips. After a teacher types in the story starter, students log in to write. read, the class decides which direction the story should take. class agrees the story is finished.
Fetal development - month 1. First trimester. At the end of four weeks: Baby is 1/4 inch long. Heart, digestive system, backbone and spinal cord begin to form. Placenta (sometimes called afterbirth) begins to develop. The single fertilized egg is now 10,000 times larger than it was at conception.
She may be a couple weeks off on her dates, too, McCartney says. A fetus is still pretty small at three months -- it's about four inches and weighs just over an ounce. It's bigger and increasingly active by the end of the fourth month. But occasionally women feel movement as early as 12 weeks.