Alternative Methods of Extracting Metals
Cards (22)
- What should you be able to describe by the end of the video?
- Why are most metals found in the Earth's crust already reacted with other elements?
- What is a significant metal mentioned in the material?
- What is copper primarily used for?
- What is the term for the amount of metal in an ore that makes it economical to extract?
- What does the term 'economical' mean in this context?
- What is the problem with copper ores mentioned in the material?
- What are low-grade ores?
- What is the first method of extracting copper mentioned?
- How do plants contribute to phytomining?
- What happens to the plants after they are harvested in phytomining?
- What does the ash from burned plants contain?
- What is bioleaching?
- What do bacteria produce in bioleaching?
- What does leachate contain?
- How is copper extracted from its compounds?
- Why is scrap iron used for displacement in copper extraction?
- What is another method to extract copper mentioned?
- What are the key points about phytomining and bioleaching?
- What is the significance of the Earth's resources of metal ores?
- What type of questions can be expected on phytomining and bioleaching?
- Where can you find more information on phytomining and bioleaching?