Which of the following is not true about controls in an experiment? A) They include all factors except the variable being tested. B) They insure that only the variables are tested. C) They are kept constant. D) There are two types, dependent and independent.

Read the paragraph. we didn’t enjoy our food when we went out to eat, but our friend nelson said that the restaurant normally served some of the best italian food in town. in fact, he said it was one of his favorite places to eat. he said that we should return and give it a second chance. what word best replaces “said” in the last sentence? insisted announced exclaimed shouted

Which of the following entities ensure that national security policies are carried out? check all that apply.

Which amusement park ride utilizes periodic motion a. slide b. bumper cars c. giant swing d. roller coaster