Science Topics

What is the basic structural and functional unit of all living organisms?

• molecule

• organ

• cell

• tissue

Which organelle is known as the powerhouse of the cell?

• Endoplasmic Reticulum

• Mitochondria

• Golgi Apparatus

• Ribosomes

What is the process by which one substance is transformed into another substance?

• Biological reaction

• Physical reaction

• Chemical reaction

• Emotional reaction

In a chemical reaction, what are the substances present at the beginning called?

• Catalysts

• Products

• Reactants

• Intermediates

According to Newton's first law of motion, an object at rest tends to stay at rest unless acted upon by what?

• an external force

• a stationary force

• a balanced force

• a constant force

What is the formula for Newton's second law of motion?

• F = mv

• F = pa

• F = ma^2

• F = ma

What is the law that states for every action, there is an equal and opposite reaction?

• Newton's Third Law of Motion

• Einstein's Theory of Relativity

• Boyle's Law

• Archimedes' Principle

What is the smallest unit of an element that retains the properties of that element?

• atom

• nucleus

• cell

• molecule

Who is credited with the discovery of the electron?

• Marie Curie

• Isaac Newton

• Albert Einstein

• J.J. Thomson

What is the center of an atom called, containing protons and neutrons?

• hub

• centerpiece

• core

• nucleus