Last Time • Matter- takes us space and has mass • Matter is made of atoms • Some matter is radioactive • Matter that is radioactive has what is called a half life
Understanding chemistry can help us to solve (environmental) problems • Bioremediation • Oil spills • Heavy metal contamination • Other uses of chemistry in the environment • Mine detection • Renewable polymers • Tracking drug trade
So to solve problems…. …You have to know some chemistry
The periodic table includes things we should all be familiar with • Oxygen • Carbon • Nitrogen • Hydrogen These are the main types of atoms that make up biotic things.
The periodic table also contains atoms that are harmful to life • Arsenic • Lead • Selenium • Mercury • Zinc • Cadmium
Read “Letting Plants do the Dirty Work” • Make a Bubble Map that describes what you learned about phytoremediation • Use a green colored pencil to outline the circle if the describing bubble is a benefit of phytoremediation • Use a red colored pencil to outline the circle if the describing bubble is a drawback of phytoremediation
Watch “Troubled Waters” • Make a Sequencing Thinking Map of the steps the scientists used to develop a solution to their observed problem