Introduction to lanugo: Before birth, a baby is covered with lanugo, a fine soft hair over most of the body â everywhere except the palms, soles, lips, penis, nails, and the sides of the fingers and toes. This soft prenatal hair is called lanugo hair. Most of the time, most of this hair is shed during the 7th or 8th month of pregnancy.
460 BCE- 370 BCE. Page 1. Democritus is an ancient Greek philosopher who first used the word âAtomâ. Democritus created the theory of the atom and he concluded that all mater is made up of the invisible particles called atoms.He also said that matter cannot come from nothing and matter is a âcombination and recombinationâ of atoms.60 BCE- 370 BCE. Page 1. Democritus is an ancient Greek philosopher who first used the word âAtomâ. Democritus created the theory of the atom and he concluded that all mater is made up of the invisible particles called atoms.
Because atoms are so small, studying them is a bit like trying to solve the mystery of the sealed box in the. Ideas and models of their shape and structure have changed many times. NAME: _______________________ TEST DATE_____ How did atomic theory develop and change? Democritus: Beginning of Atomic Theory! 430 B.C ., a Greek philosopher matter is formed of small pieces that could not be cut into smaller parts.very element has a different atomic number and therefore a different number of __________ in the nucleus. Example: The atomic number of protons in the nucleus of Carbon is 6. All carbon atoms have ____ protons in their nucleus. They all have an atomic number of ____.