Science 3 Q2 Flashcards
What si the Great Pacific Garbage
It is 3.5 million tons of waist in the Pacific ocean. It size is f 3 Frances.
What is the majority of waste
Plastic
What does biodegrade mean
That is descomposes in a natural way
Is plastic toxic? How?
Yes, it contaminates any environment with excesives quantities that never stop growing
What is the difference between biological accumulation and biological magnification?
Biological accumulation: What you get when you eat.
Biological magnification: Plastic gets magnified up the food chain
Microplastics:
Small pieces of plastic that are less than a milimeter
Smog
When small particles of pollution are spread in the air
Resin identification codes
Symbols that identify what type of plastic is
Thermohaline circulation
Saltines and temperatures of ocean driving currents
Polymer
Long chains of molecules
Monomer
Small molecules/ one simple molecule
Thermoplastic and thermoset plastic compare
Thermoplastic can be constantly melted and reused while thermoset only have a one time only life time
The plastic five and ten dollar bill used in Canada are often called polymer bills it is a good or bad name for the bills?
It ain´t a good name because all bills are also polymer. But the advantage is that they are more resistant and have a longer use time
There are many types of plastic used commonly. These plastics have varying densities. What impact does this have on plastic pollution in the natural environment?
It is resistan, moldable and flexible making it a good material tu use but also hard to get rid of.
What physical and chemical properties of plastic make it both a useful material and a pollutant?
At the sea, because of the different currents, different type of plastics aee moved arround because of their variety of lab densitys
Four stages of cell cycle
- Mitosis: Prophase, metaphase, anaphase and telophase
- G1: grow, live, replicate organelles
- Synthesis: DNA replicates
- G2: cytoskeleton grows
