Bohlen,+Mark

I knew that old paints were lead based. I knew that lead poisoning was known to cause learning disabilities, stunted growth, and kidney damage. I knew that candy wrappers were decorated with lead based paint.

I didn't know that the lead used in paint had a sweet taste to it so kids would be more likely to eat it. I didn't know that lead tends to accumulate in bone marrow, nerve tissue, and the kidneys. I didn't know that lead isn't magnetic, or that it was found in candy from Mexico.

Mark, There is a compound - lead acetate - that has the nickname "sugar of lead" I imagine it is very sweet. 5 stars. MW

Distillation of Oil: I didn't know that crude oil had to be distilled. I also didn't know that crude oil made several different kinds of fuel for different vehicles. You showed us how to distill mixtures by reaching their boiling point, and the oil had to be distilled in the same way like you showed us only on a much larger scale.

Mark, This is a bit short (62 words). Try using a narrative style. 4 stars. MW

After reading the article on motion detecters I learned that the human body emits light called infrared radiation, and that things from garage doors openers to the doors at grocery store they have motion detecters that all work differently depending on the type of detecter is it. I found that there were three kinds of detecters other than the one we all see at the store. It was interesting to learn that different lights emit different amounts of energy. Like red light no matter how powerful didn't eject any electrons from the surface, but a weak blue light ejected a lot of electrons from the surface it shined on.

Mark, Follow the prompt - list three things that you already knew. 4 stars. MW