Kerry is explaining to a friend that she will be conducting a descriptive investigation. she wants to know if increasing the size of a parachute affects a skydiver’s time in the air. she plans on having skydivers drop from the same height but with different chute sizes and comparing the data. what is unusual about the description of her scientific investigation? descriptive investigations cannot have procedures. this is not a descriptive investigation. this is not a proper scientific question. descriptive investigations cannot have a question.

This is not a descriptive investigation.

A descriptive investigation is a research strategy which can include a scientific question but it cannot include a hypothesis. In these observations are recorded without manipulating the variables and with no comparison of the data. This is mainly used to develop a idea by creating a three dimensional modal for natural phenomena like rock formation, electric circuit and animal behavior.

The given situation is not an example of the descriptive investigation because  here different sizes of the parachute explains a manipulated variable the effect of which can be measured on the dependent variable that is the time of the skydiver in the air. A manipulated variable should not be present in the descriptive investigation.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2

answer///terminator or twilight zone;