Many children are uncomfortable around white lab coats. Specifically explain why this occurs in what a doctor or dentist could do to counteract this reaction and still wear a white lab coat

What are scientists who study fossils called? ( a ) astronomers. ( b ) biologists. ( c ) geologists. ( d ) paleontologists.

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.