Scientific Theories and Discoveries Quiz

What is a scientific theory?

• A statement that describes what happens in nature

• An explanation of something in the natural world based on evidence

• A proven fact that cannot change

• A description of how objects are pulled toward the Earth

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What can happen to a scientific theory over time?

• It remains unchanged forever

• It can be proven false and discarded

• It can change or be updated as new research is done

• It becomes a scientific law

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What is an example of a scientific theory mentioned in the text?

• Law of Gravity

• Theory of Relativity

• Cell Theory

• Theory of Evolution

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What does a scientific law describe?

• Why something happens

• How to conduct experiments

• What happens in nature under certain conditions

• Theories that have been proven

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Which of the following is an example of a scientific law?

• Cell Theory

• Law of Gravity

• Theory of Evolution

• Theory of Relativity

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What term did Robert Hooke use to describe the structures he observed?

• Animalcules

• Protozoa

• Cells

• Microbes

Who was the first person to observe living cells using a microscope?

• Robert Hooke

• Anton van Leeuwenhoek

• Matthias Schleiden

• Louis Pasteur

What did Anton van Leeuwenhoek discover in pond water?

• Plant cells

• Animalcules

• Viruses

• Bacteria

What is the Latin word for "small rooms" that Robert Hooke used?

• Animalcules

• Protozoa

• Cellula

• Microbes

What is the main difference between a scientific theory and a scientific law?

• A theory describes what happens, a law explains why

• A theory is based on evidence, a law is a proven fact

• A theory explains why something happens, a law describes what happens

• A theory is unchangeable, a law can be updated