physical and chemical changes

Front

What is the Periodic Table of Elements?

Back

A table that organizes all known chemical elements based on their atomic number, electron configuration, and recurring chemical properties.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition, such as boiling, freezing, or dissolving.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, such as burning, rusting, or digesting food.

Front

Give an example of a physical change.

Back

Melting ice is an example of a physical change.

Front

Give an example of a chemical change.

Back

Baking a cake is an example of a chemical change.

Front

What happens during boiling?

Back

During boiling, a liquid turns into vapor when it reaches its boiling point, which is a physical change.

Front

What happens during digestion?

Back

During digestion, food is broken down into simpler substances, which is a chemical change.

Front

What is evaporation?

Back

Evaporation is the process where liquid turns into vapor at temperatures below its boiling point, and it is a physical change.

Front

What is combustion?

Back

Combustion is a chemical reaction that occurs when a substance reacts with oxygen to produce heat and light, such as burning wood.

Front

What is rusting?

Back

Rusting is a chemical change that occurs when iron reacts with oxygen and moisture, forming iron oxide.