Science/ research and innovation (Easy) Quiz Home โบ IELTS โบ IELTS English Vocabulary โบ Science/ research and innovation (Easy) ๐ IELTS – English Vocabulary – Science/ research and innovation – Easy 20 questions ยท 15 min timer ยท Explanations included ยท Free 1. What does 'empirical evidence' refer to? Evidence based on observation Evidence based on opinion Evidence based on hearsay Evidence based on theory None 1 out of 19 2. What is a 'control group' in scientific experiments? A group that receives the treatment A group with no variables A group used for comparison A group that is ignored None 2 out of 19 Loading questions... 3 out of 19 Loading questions... 4 out of 19 Loading questions... 5 out of 19 Loading questions... 6 out of 19 Loading questions... 7 out of 19 Loading questions... 8 out of 19 Loading questions... 9 out of 19 Loading questions... 10 out of 19 Loading questions... 11 out of 19 Loading questions... 12 out of 19 Loading questions... 13 out of 19 Loading questions... 14 out of 19 Loading questions... 15 out of 19 Loading questions... 16 out of 19 Loading questions... 17 out of 19 Loading questions... 18 out of 19 Loading questions... 19 out of 19 Click Submit to see your final score! Previous Start Quiz Next Time's up