Bill Nye - Chemical Reactions

Front

What is the symbol for potassium?

Back

K

Front

What are all substances made of?

Back

Chemicals

Front

How many elements are there in total?

Back

92

Front

What tiny particles are involved in chemical reactions?

Back

Electrons

Front

How many naturally occurring elements are on the periodic table?

Back

92

Front

What is a chemical reaction?

Back

A process where substances (reactants) transform into different substances (products).

Front

What is the periodic table?

Back

A table that organizes all known elements based on their properties.

Front

What is an element?

Back

A pure substance that cannot be broken down into simpler substances.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance, while a chemical change alters its chemical composition.