Problem: How to chill a keg of beer
Prepare a tub for the keg.
To chill a keg, you will need a large, durable container into which the keg will fit with a little room surrounding it. The best option is buying a specialized keg tub, which can be found at many liquor stores and home brewing supply stores.

Answer: Another ideal container is a large trash can. Most high-capacity outdoor trash cans can easily fit a keg of beer inside with room to spare.

Problem: How to use a protractor
Approximate the measure of your angle.
Angles can be classified in three ways: acute, obtuse, and right. Acute angles are narrow (less than 90 degrees), obtuse angles are wide (greater than 90 degrees), and right angles are exactly 90 degrees (two lines perpendicular to each other).

Answer: You can easily identify by eye, the category of angle you are trying to measure. Doing this step first helps you identify which scale to use on the protractor.

Problem: How to identify shark teeth
Search for teeth at the tide line and the shoreline.
Go to the beach at low tide and look for the line of debris in the sand. Walk slowly along this tide line as you keep your eyes peeled for teeth.
Answer: If the beach is busy, you might have more luck looking right where the waves are crashing into the shoreline so that you can snag teeth before others see them. Every now and then, dig up some of the sand along the tide line and/or shoreline and search through it for teeth.