Ejercicios de vocabulario en inglés nivel toefl-9

The scientist conducted an important __________ to test the theory.

They published the results in a respected scientific __________.

Choose the synonym of “hypothesis”:

Choose the antonym of “artificial”:

Translate into Spanish: “The discovery changed the way we understand the universe.”

The __________ showed that the new vaccine was effective.

True or False: Gravity is a man-made force.

He studied the __________ of light in different materials.

A telescope is used to __________ distant stars and planets.

Which word is most related to “innovation”?