[ Vocabulary ]
A scientific test or procedure that is carried out under controlled conditions to answer a scientific question.
A. experiment
B. observation
C. investigation
D. field study
Select your answer:

Random Topics:
Dependent PrepositionsVocabulary and GrammarGrammar: wishes and regretsHave vs. HasPronouns and QuantifiersConjunctions - ConnectorsModal Verbs for SpeculationNoun Phrases and AdverbialsAdjectives with PrepositionPreposition on TimeOther quiz:
Grammar and Passive Voice › ViewWhat is the passive voice form of “The artist is painting a new mural”?
A. A new mural was painted by the artist.
B. A new mural is being painted by the artist.
C. A new mural will be painted by the artist.
D. The artist is painting a new mural.
Future Tenses › View
By the time we arrive, the kids _________________to bed.
A. will go
B. will be going
C. will have gone
D. will have been going
