## KEEPING TRACK

1. STRIKE ONE! Pitch some balls. Keep a record of how fast you pitched each ball. Throw each ball three times. Find the average speed for each ball back at school.

 FIRST TRY SECOND TRY THIRD TRY MAJOR LEAGUE LITTLE LEAGUE FAST PITCH

2. Work with a partner. Use a yardstick. Hold your ball at 2 feet. Now bounce the ball on all the different surfaces. Record how high the ball bounced on each. Now hold the ball at 3 feet and repeat the test. Fill in the blanks after each. Did you get the same result?

 TWO FEET THREE FEET HARDWOOD ASTROTURF FOAM SAND HIGHEST= HIGHEST= LOWEST= LOWEST= RANGE= RANGE=

3. UP, UP, AND AWAY! Take a turn on the downhill skier. Record your top speed. When you get back to school, find out everyone else's results. Make a stem and leaf plot. What is the median top speed?

4. Look at the athletes along the wall.

3 Tallest: ________________________________________

3 Shortest: ________________________________________
3 Lightest: ____________________________________________
3 Heaviest: ____________________________________________
Closest to you in height: ______________________________
Closest to you in weight: ______________________________

5. SURF'S UP! Do this with a friend. Have your friend count while you try to balance on the red feet. Then do it again on the blue feet. Count for your friend when he or she does the same. Record your results.

 RED FEET BLUE FEET YOU YOUR FRIEND

6. WE'RE OFF! Do this with 2 friends. Record your starting times. When you get back to school, make a multiple line graph of your results.
 CAR 1 CAR 2 CAR 3 FIRST SECOND THIRD FOURTH FIFTH

7. Look at the speed chart by the Pitching Cage to answer these questions.

How much faster is a golf ball than a bowling ball?
How much slower is a baseball than a badminton shuttlecock?
How much faster is the fastest ball than the slowest?

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