Rosita is planning an investigation to determine how a lifeboat's shape affects its ability to carry passengers. She notices she has made an error in her data table
below. What does she need to change in her table to make her investigation a
controlled experiment?
Boat
Size and area of aluminum
foil
10 cm x 30 cm = 300 cm?
Shape of boat
1
rectangular
2
10 cm x 30 cm = 300 cm?
oval
3
20 cm x 30 cm = 600 cm?
square
4
20 cm x 30 cm = 600 cm?
triangular