Copper is a reddish metal. Galena is a greasy-looking greyish-silver rock. I'd probably use my eyes.
Go get in bed naked with your grandma, and see if you can distinguish that.
Galena, which is a mineral containing lead sulfide, tends to stick to grease during separation from ore due to its natural hydrophobic properties. The grease selectively adheres to the galena particles, allowing them to be separated from the rest of the ore during processing.
Fingerprints are different in identical twins.
Only by chemical analysis.
One way to distinguish cork from wood is by determining their buoyancy in liquids. Cork is lightweight and floats in water, while wood is denser and sinks. Therefore, you can use water as the liquid to distinguish between cork and wood based on their buoyancy characteristics.
Distinguish is similar in meaning to differentiate. An example would be, teachers use tests to distinguish between successful students and unsuccessful students.
The most useful physical property for identifying galena would be its metallic luster and its high density. Galena has a metallic luster and is one of the densest minerals, so these characteristics can be helpful in distinguishing it from other minerals.
Quartz would be able to scratch fluorite, galena, and pyroxene as it is harder than these minerals on the Mohs scale of hardness.
Personally I would say Galena High School.
i would distinguish whether it was healthy or not based on what is in it or what it's made with
The volume of a sample of galena with a mass of 300 g would depend on its density. The density of galena is approximately 7.5 g/cm^3. Using the formula Volume = Mass/Density, the volume can be calculated as 300 g / 7.5 g/cm^3 = 40 cm^3.
Martin Cooper invented the mobile phone and dreams that one day it could be embedded in our bodies. This would be able to send information and characteristics of a person to a computer and doctor where it could cure any illness.
Would you distinguish between what a good answer may be vs what a bad answer may be?
Introduce genes for different opsins that respond in the green region of the spectrum.
If gelena contains silver it's cost would depend on the wheight, but, by itself, gelena is not very valuable.
The value of an Anna Julia Cooper postage stamp would depend on various factors such as its condition, rarity, and demand among collectors. On average, a mint condition Anna Julia Cooper stamp could be worth anywhere from a few dollars to potentially over $20.
Hell no, Sheldon Cooper would NEVER kiss Penny, EVER!