Topic Details (Notes format)

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

Which British military nurse was known as the ‘Lady with the Lamp’ during the Crimean War?

What is the primary ingredient in the manufacture of cement?

Which element has the chemical symbol "Fe"?

What is the world’s largest hot desert?

Which pharaoh built the Bent Pyramid and the Red Pyramid at Dahshur?

What is the hardest natural substance on Earth?

Who discovered Sumerian cuneiform tablets?

Which type of electromagnetic radiation has a wavelength shorter than visible light but longer than X-rays?

What kind of energy does a moving object possess?