Bob is curious about why his white bread grows mold so quickly. so he asks a question, does some research, creates a hypothesis, and sets up his experiment. he wants to see if his white bread will grow mold in the refrigerator. so he takes one piece of bread and puts it in the refrigerator. he records how much mold grows on the bread each day. he concludes that it takes his bread 10 days to grow mold in the refrigerator. what is bob missing in his experiment?

an independent variable

a dependent variable

a control group

more research

Can create a hboth of these instruments can measure wind speed. doppler radar and psychrometer anemometer and hygrometer doppler radar and anemometer radiosonde and psychrometer

Group control group #1 experimental group yes yes yes control group #2 no new drug orange juice bed rest no yes no yes ves which of the following is the best explanation of why a second control group was included in this experiment? o a. to provide the volunteers in the study with something to drink o b. to prove that the common cold cannot be cured c. to confuse anyone who is trying to steal their new drug and sell it as their own invention o d. to researchers conclude that results are related to the new drug and not to the orange juice submit e previous

This is the process of making a prediction based on the results of prior observations of similar events.