What does it mean to be a polar molecule? 2. Why is water considered a polar molecule?
3. Do polar and non-polar molecules mix?
4. What is the reason that water has all its unique properties?
5. What makes water such a good solvent?
6. What two properties of water work together to aid in capillary action?
7. What are the three macromolecules found in food?
8. What are the monomers and polymers for carbohydrates, lipids, proteins, and nucleic
acids?
9. Why does a catalyst speed up a chemical reaction?
10. What is the difference between reactant and product?
11. What is the difference between a catalyst and an enzyme?
12. Do enzymes get used up?
13. What does it mean to say that enzymes are specific?

small = small current large mag large current

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia