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.
[ Mouse Over Image ] At 12 weeks pregnant the fetus will be about 45 to 50 millimeters (less than 2 inches) CRL (head to butt) length, thats just a little more than the width of two U.S. pennies (one cent coins). The genital tubercle (nub) area at 12 weeks pregnant will be about the size of a 'pin head'.