1st 3 weeks exam (major grade)

Front

What is a Chemical Change?

Back

A process where substances combine or break apart to form new substances with different 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.

Front

Give an example of a Chemical Change.

Back

Baking soda neutralizing stomach acid.

Front

Give an example of a Physical Change.

Back

Water freezing into ice.

Front

What are Compounds?

Back

Substances formed when two or more elements chemically bond together, having different properties than the individual elements.

Front

What happens during the ripening of bananas?

Back

It is a Chemical Change where the composition of the banana changes, affecting its taste and texture.

Front

What is Evaporation?

Back

The process where liquid turns into vapor, an example of a Physical Change.

Front

What is the difference between Elements and Compounds?

Back

Elements are pure substances that cannot be broken down, while compounds are made of two or more elements chemically combined.

Front

What is an example of a Physical Change in water?

Back

Steam evaporating from boiling water.

Front

What is the significance of Chemical Changes in everyday life?

Back

They are involved in processes like digestion, cooking, and chemical reactions in the body.