Article V explains the amendment process, which is different and more difficult than the process for making laws. When two-thirds of the Senate and two-thirds of the House of Representatives vote to change the Constitution, an amendment goes to the state legislatures for a vote.
Another way to use the fridge for brief cold stratification is to plant the seeds in individual jiffy pellets and put them in either a plastic covered container (such as for home baking little bread loaves) or in a store-bought greenhouse flat. Depends on how much room you have in your fridge.
If you wish to start growing zinnia plants from seeds indoors, plant the seeds in peat pots, poo pots (pots made from cow dung) or other biodegradable containers that can be planted directly into the garden later. Start seeds four to six weeks before the last frost date in your area. Zinnias begin to show growth outdoors when temperatures are above 50 F. (10 C). Space the seeds for growing zinnia plants properly, usually several inches to a couple of feet apart, depending on the size of the mature plant.