Topic Details (Notes format)

Who discovered the structure of collagen?

What type of celestial body is Halley’s named after Edmond Halley, visible from Earth every ~76 years?

In which country did the Renaissance begin?

Which force pulls objects toward the center of the Earth?

Which inventor is known for the phonograph and practical electric light bulb improvements?

Which fiber crop is known for making linen from its stalks?

Which country is famous for the Leaning Tower of Pisa and the Colosseum?

Which city is the capital of Peru, known for its Plaza Mayor and colonial architecture?

Who discovered the sliding filament theory?

Which organ pumps blood throughout the human body?