Activity 1 FAST PUZZLE Materials: pen, paper, stopwatch from cellphone, and crossword puzzle Directions: 1. Prepare your stopwatch, record the time on how long you are able to answer the puzzle completely. 2. Answer the puzzle correctly as fast as you can. 3. Write your answers on the answer sheets. ACROSS DOWN 1. It is the distance over time. 2. also called speed with direction 3. A unit for measuring distance. 4. It is the space between two objects. 5. The reference is an object 6. A unit used for measuring time. that stays in place.