The term scrap yarn knitting is the same as the waste yarn knitting. This is the process where you need to use a scar or leftover yarn. The weight of your yarn and your waste yarn must be the same. The scrap yarn knitting is often useful when you make provisional cast-on. Again, the scrap yarn is not part of your actual project. You will need to remove this scrap yarn once you have completed the project. Below is the process to make your provisional cast-on using scrap yarn knitting. You will need these materials. Knitting needles Crochet hook Scrap yarn with the same weight as your working yarn Working yarn Make a slip knot with the scrap yarn. Leave a bit of yarn tail so you can weave in later. Put the slip knot on your crochet hook. Put the crochet hook over your knitting needle. Put the scrap or waste yarn from the back of your knitting needle. Put your scrap yarn around your hook. Now, pull your scrap yarn into the loop on the hook, creating a stitch on your needle. At this point, you have made one chain stitch. Continue steps 2 to 4 until you reach your desired number of stitches. Keep in mind that this number is the number of stitches the pattern instructed you to cast on. Since you will unravel this later, use your crochet hook to chain two extra stitches at the end. This will give you a bit of allowance when you pull out the chain at the end. Trim the scrap yarn. Insert the yarn tail into the last stitch on the knitting needle. Another option is to pull out a big loop after your last chain. This way you can reuse your yarn Set aside your crochet hook. Then, take the other knitting needle and your working yarn. Begin stitching with your working yarn color. Make sure to leave a long tail on your working yarn for weaving. Knit the entire chain. Follow the pattern instructions for your Row 1. If it instructs you to knit the entire row, then knit across row 1. Continue knitting your project by following the steps in your pattern. When you complete the project, you need to remove the provisional chain. What you need to do is pull the yarn end of the last chain stitch. Tug on it until you unravel the chain and you begin to see live stitches. When you see one or two live stitches, stop for a while. Get your knitting needle and slide it into the live stitches so they will not drop. Continue this as you work across the chain. When you get to the end of the stitches, you will see the slip knot you created in step 1. Untie this knot by pulling the yarn. Then pull the scrap yarn out of your project. Put it aside. Once you reach the end of your chain, you will notice that all the stitches are on your knitting needle. You may now add length to your project, or connect it to a different set of live stitches.