If you are looking for equal health benefits... no. Powdered green tea is higher in antioxidants and its other nutritional components. I still recommend the tea bag because it still has the benefits and is cheaper.
No, in general, you cannot make matcha just by grinding up green tea into powder.
Matcha is not just any powdered green tea, it is a specific type of green tea made by a particular production process. The type of tea ground up to make matcha is called "tencha" and is typically not available in the U.S. The most similar type of tea to matcha that is widely available outside Japan is called Gyokuro, but even this would not produce matcha if you ground it up.
Sun dry them outside..Then grind them into powder.
Matcha green tea can cost anywhere from ten dollars to 50 dollars, a great place to shop for these is just to look it up and click on the "shopping" tab. You can also learn to make your own at http://www.matchasource.com/matcha-recipes-s/6.htm
i can only say from experience but I have consumed a large helping of matcha tea every morning for the last week and a half and i just pooped out a ninja turtle.
Obtain some crystalline sulfur and grind it up with a mortar and pestle. However, it's usually sold already in powder form.
Grind a chalk rock & a tablet of different kinds of foil togther, then add anything to make its flash brighter.
Seasoning powder usually come in bottles at the supermarket. However, if you want to make your own seasoning powder, you can consider mixing different seasoning powders together, which is the easiest way. You can also dry the ingredient that you want to make as seasoning powder and then mash it without water or grind in till it becomes powder.
Deseed the fresh amla or gooseberry. Dry it in the sun. once it is dried up, grind it up to a fine powder. This can be used for consumption or for the hair.
find a cyclops takes its eye and grind it into a fine powder and sprinkle that onto an iron helmet
In common ceremonial teas, matcha is made of powdered green tea leaves, and minced green tea leaves that are dried make green tea and also help make black tea and sometimes jasmine tea. Chamomile and dried fruits can also be found in popular teas.
lime green gelatin powder, flour, and oatmeal
A mano and matate were used by the Hopi to grind corn. A matate (or metate) is the large stone on which the grain is placed. A mano is a smaller stone tool (or rock) used to grind corn or other grains. It is rolled over the matate to break down the grains into a powder
Papaya is liquidised, dried, then ground into powder.