How much grass seeds should I plant?

I'm doing a science fair project involving grass seeds and I want to know how much should I plant. I'm planting the seeds in pots about 4.5 inches in diameter.

How much grass seeds should I plant?
Your earlier answers are telling you to put on way too much seed. A general rule of thumb for a lawn-type grass seed is 1 lb for every 200 sq ft. So for a pot with a small surface area like you are using use no more that a level teaspoon spread evenly over the surface. Then keep it moist--not wet and soggy--just moist. If you put the pots where the temp is about 75-80 degrees it will speed up the germination.
Reply:THICK WOULD BE 1/2 IN.--- IN ALL DIRECTIONS ........
Reply:I would most probably use enough to cover the surface well and put a piece of plastic wrap over it, so it can water itself after you've dampened the soil. Also, when mixing the soil put just a tad of fertilizer in the mixture. It'll enhance the ability of the soil to produce good, green grass. Not a whole lot...maybe about 1/8 of a teaspoon, mix it with the dirt and let it set before adding the seed so it work within the soil and not shock the seeds.