The hardness of a rock is identified using Mohs Scale of Hardness. Certain rocks and minerals have a predetermined hardness level based on this scale, which uses the obvious logic that if something scratches something else, then it must be harder than that which it scratches. Likewise, if something doesn't scratch something else, it must be softer than that which it cannot scratch. Using a scale from 1 to 10, common objects can be used to determine hardness level. A fingernail, for example, has a hardness of 2.5. Any rock that can be scratched by a fingernail (talc, for example) has a hardness less than 2.5. A streak plate, which is commonly used for hardness tests, has a hardness of 6.5. Diamonds, the hardest minerals, define the 10 on the hardness scale. Using these common objects and their related hardnesses, one can easily identify the rock in question.
I would say not likely. Most metals are rather soft in their pure form. One of the most distinguishing characteristics about metals is that they are sectile, or easily cut with a knife. Silver has a hardness (on the Mohs scale) of 3. That is probably not going to scratch many other minerals.
The leaves of a plant are responsible for releasing oxygen into the atmosphere through the process of photosynthesis. During photosynthesis, plants take in carbon dioxide and water and, with the help of sunlight, convert these into glucose and oxygen.
The mineral that scratches gypsum has a hardness greater than 2 on the Mohs scale. Gypsum has a hardness of 2 on the Mohs scale, so any mineral that can scratch it must have a hardness greater than 2.
This isn't actually a proverb; it is a quote from Leo Tolstoy's short story, The Two Brothers.In the context of the story, two brothers come across a stone that tells them that they must steal the cubs from a she-bear and run up a mountain to find happiness. The younger brother wants to do what the stone says, but the older brother desists, telling him that "A bird in the hand is worth two in the bush."The younger brother replies:I have heard: "He who is afraid of the leaves must not go into the forest."In short, he belittles the older brother's caution. This quote is believed by many to mean "If you are afraid of the little things in life, you are likely to miss the big picture, or the big catch."Some misinterpret it as "You need to overcome your fears by facing them", but the context suggests otherwise.
The hardness of a rock is identified using Mohs Scale of Hardness. Certain rocks and minerals have a predetermined hardness level based on this scale, which uses the obvious logic that if something scratches something else, then it must be harder than that which it scratches. Likewise, if something doesn't scratch something else, it must be softer than that which it cannot scratch. Using a scale from 1 to 10, common objects can be used to determine hardness level. A fingernail, for example, has a hardness of 2.5. Any rock that can be scratched by a fingernail (talc, for example) has a hardness less than 2.5. A streak plate, which is commonly used for hardness tests, has a hardness of 6.5. Diamonds, the hardest minerals, define the 10 on the hardness scale. Using these common objects and their related hardnesses, one can easily identify the rock in question.
that you must scratch them.
If you wish make an apple pie from scratch, you must first invent the universe.
Official pool scratch rules must be followed to ensure fair play. These rules typically include guidelines on how to properly scratch the cue ball, how to handle fouls, and how to handle the cue ball after a scratch. It is important for players to familiarize themselves with these rules to avoid penalties during gameplay.
Minerals that will scratch apatite must be more than a 5 on the Moh's hardness scale. So feldspar, quartz, topaz, corundum, and diamond will scratch apatite.
you must take scratch card or paper or something and scratch it. if it is gray, gold, or something like that, its gold
In order to begin to scratch vinyl records one must purchase a turntable in order to edit the record. One must also learn professional DJ lessons, and music theory.
The answer is because its just a thing boys do. They pick on the girls because they like them. So Neon Lights must have a crush on this Vinyl Scratch.
No, after a scratch in pool, the cue ball must be placed behind the headstring (imaginary line across the table) for the next shot.
more sunlight
There must be a scratch on the disc.
In scratch pool, players must hit the cue ball into the object balls in numerical order. If a player fails to hit the correct ball first, it is a scratch and the opponent gets ball in hand. The game is won by pocketing all the object balls in order.