Flammable metals are those that can easily catch fire and burn when exposed to air or water, such as lithium, sodium, potassium, and magnesium. These metals are highly reactive and can ignite at relatively low temperatures. On the other hand, non-flammable metals are those that do not easily catch fire or burn when exposed to air or water, such as copper, silver, gold, and platinum. These metals are much less reactive and have higher resistance to oxidation and combustion. **

Yes, bread is flammable. When exposed to a flame, the carbohydrates and sugars in bread can catch fire and burn. However, bread is not highly flammable and does not burn as easily as some other materials. It is important to always be cautious when using fire around any flammable materials, including bread. **

Yes, earwax is flammable. Earwax is made up of a combination of sweat, dead skin cells, and other substances produced by the body. It contains a small amount of flammable substances such as fatty acids and alcohols, which can cause it to burn if exposed to a flame. However, it is not recommended to intentionally try to burn earwax as it can be dangerous and should be handled with caution. **

No, copper is not flammable. It has a high melting point of 1,984°F (1,085°C) and does not ignite or burn in normal conditions. In fact, copper is often used in electrical wiring and plumbing because of its non-flammable properties. However, copper can react with certain chemicals or gases to form flammable compounds, so it is important to handle it with care in certain environments. **

Yes, bones are flammable. When exposed to high enough temperatures, bones can burn and turn to ash. However, bones are not as easily flammable as other materials like wood or paper due to their high mineral content. In order to burn bones, a sustained and intense heat source is typically required. **

Yes, down is flammable because it is a natural material made from the feathers of birds. When exposed to a flame, down can catch fire and burn. It is important to keep down products away from open flames or high heat sources to prevent them from catching fire. **

Yes, some types of glue are flammable. Glues that are solvent-based or contain volatile organic compounds (VOCs) are more likely to be flammable. When exposed to heat or flame, these types of glue can ignite and burn. It is important to always read the safety information on the glue's label to understand its flammability properties. **

No, ivory is not flammable. Ivory is a dense, hard material made from the tusks of animals such as elephants and walruses. It is composed mainly of calcium phosphate, which is not easily combustible. However, ivory can be damaged by high heat, so it is important to keep it away from sources of fire. **