What type of lens converges light rays to a single point?

What is the function of the nucleus in a cell?

What is the SI unit of force?

Which planet is often referred to as the "Evening Star" or the "Morning Star" and is the brightest natural object in the night sky after the Moon?

What is the chemical formula for methane?

Which gas is commonly used in the food industry for carbonation of beverages?

What is the chemical formula for nitric acid?

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

What is the term for the point in a planet's orbit where it is closest to the Sun?

Which subatomic particle carries a negative electric charge?