4. Know how to use compasses for scribing both regular and irregular lines.
5. Make an article of furniture with three different standard joints or splices, with at least one surface of highly polished hard or decorative wood. All work to be done without assistance.
Chemistry
To obtain a merit badge for Chemistry a scout must be able to pass the following test:
1. Define physical and chemical change. Which occurs when salt is dissolved in water, milk sours, iron rusts, water boils, iron is magnetized and mercuric oxide is heated above the boiling point of mercury?
2. Give correct tests for oxygen, hydrogen, nitrogen, chlorine, and carbon dioxide gases.
3. Could you use the above gases to extinguish fire? How?
4. Why can baking soda be used to put out a small fire?
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