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.
As the child grows, the lateral diameter increases. The circumference of a newbornâs thorax is usually 30 to 36 cm and is approximately 2 cm smaller than the infantâs head circumference until 2 years of age. The chest wall is thin with very little musculature, and the ribs and the xiphoid process are quite prominent.