In the periodic table, which group do alkali metals belong to?

Which moon of Jupiter is known for its smooth, icy surface with numerous cracks and fractures, resembling a broken eggshell?

Which of the following is a diatomic molecule?

In optics, what is the term for the point at which parallel light rays either converge or appear to diverge after passing through a lens?

What is the primary function of the ozone layer in the Earth's atmosphere?

What is the chemical symbol for helium?

What is the chemical formula for acetic acid, the main component of vinegar?

What is the chemical symbol for silver nitrate?

Which of the following is an example of a first-class lever?

What is the name for the process by which water from the surface of the Earth enters the atmosphere as water vapor?