Weekly lab.Throughout history, time has been measured using different materials and methods. In this lab, you will be making a timekeeper called a clepsydra clepsydra (klĕp`sĭdrə) or water clock, ancient device for measuring time by means of the flow of water from a container. (klep se drah) - an ancient Greek Noun 1. Ancient Greek - the Greek language prior to the Roman Empire Greek, Hellenic, Hellenic language - the Hellenic branch of the Indo-European family of languages drip clock. You need: 4 to 6 waxed paper waxed paper n. Wax paper. waxed paper or wax paper Noun paper treated or coated with wax or paraffin to make it waterproof cups, paper fasteners, a large cardboard box cardboard box n → caja de cartón cardboard box n → (boîte f en) carton m cardboard box card n → , a bowl, water, a pencil (nail or sharp scissors scissors Cutting instrument or tool consisting of a pair of opposed metal blades that meet and cut when the handles at their ends are brought together. Modern scissors are of two types: the more usual pivoted blades have a rivet or screw connection between the cutting ends ), a clock Step 1: Use a pencil, scissors, or nail to carefully poke a small hole in the bottom of each cup. Poke a second hole near the top of each cup. Step 2: Place the bowl at the bottom of the cardboard box. Use a paper fastener to attch one of your cups to the box about 8 cm (3 in.) above the bowl. Step 3: Now, attach the rest of your cups to the box. Place each one about 8 cm above the last cup. Step 4: Now, slowly fill the top cup with water. Use a clock to time how long it takes all the water to drip into the bowl. Try to change the rate of your drip clock by adjusting the size of the holes. How can you use your drip clock as a timer? What will you measure? |
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