Confusing Words: Invention, Discovery, Innovation, Exploration, Creation, Finding

The telephone is an important human ________.

Gravity was a scientific ________, not something people created.

Many believe that Thomas Edison ________ the light bulb.

Scientists ________ electricity and learned how to use it.

An invention is something people ________.

A discovery is something that already ________ in nature.

Marie Curie made an important scientific ________.

Smartphones are an example of modern ________.

Columbus went on an ________ across the ocean.

Innovation means improving an existing ________.

Scientists hope to ________ a cure for cancer.

The computer is a useful ________ for work and study.

Finding a new planet in space is a ________.