Quiz on the Law of Conservation of Mass

According to the law of conservation of mass, what can neither be created nor destroyed?

• Atoms

• Matter

• Water

• Energy

What is the main concept behind the law of conservation of mass?

• Atoms cannot be destroyed

• Water cannot be created

• Energy cannot be created

• Matter cannot be created or destroyed

Where did the atoms that make up our universe come from?

• Stars

• Earth

• The Big Bang

• Supernovas

What happens to the mass of starting atoms during nuclear reactions in stars?

• It increases

• It decreases

• It transforms into energy

• It remains the same

According to Carl Sagan, what are we all made of?

• Star stuff

• Energy

• Matter

• Atoms