the activity on how crayons are made. 1. Click the following link: How Crayons Are Made to see how crayons are produced. 2. After reviewing the video, complete the hands-on activity below. Procedure 1. Gather the following materials needed for this hands-on activity: a box of crayons a ruler or measuring tape 2. If you have ever examined crayons and candles closely, you have probably guessed that they are made from similar ingredients. Let's figure out about how many crayons you would need to use in order to have a candle about three inches high and two inches in diameter (this is an example that demonstrates opportunity costs and productive resources). 3. Grab a bunch of crayons (no broken ones, please) and hold them in your fist. 4. Have someone (friend, sibling, parent, etc...) hold a ruler or measuring tape across the top of the bunch of crayons. 5. Add or remove crayons until the diameter of the bunch is about two inches. 6. Now count the number of crayons in your hand