This week's topic is about lethal doses and LD50.
portion is about the difference in toxicity of natural vs. manmade
chemicals. Most people wrongly assume that if a chemical is natural that
is good and that if a chemical is manmade then it is bad. Both can be
good and both can be bad!
Compound Interest's original post about Lethal Doses of Common Chemicals can be found here.
Compound Interest's original post about Natural vs. ManMade Chemicals can be found here.
Global Ocean Conveyor - Today students began class with a BrainPop on currents and took the quiz. Tim and Moby did an excellent job describing how currents affect global weather ...
3 weeks ago