Mrs. Sprague wants to determine which type of ball has the highest bounce. she drops a tennis ball, soccer ball, then a basketball from a height of 15 feet, and
measures and records how high each type of ball bounces back up.

What is the Independent Variable in this experiment?

A. the different types of balls being tested
B. the height of the drop
C. the height of each bounce
D. the measuring tape

PLEASE HELP

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

Why does a red shoe appear red in daylight

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.