Section 3 Pre/Post Assessment

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties. An example is mixing baking soda and vinegar.

Front

What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. An example is melting ice.

Front

What happens to the mass of an object during a chemical change?

Back

The mass of an object remains the same during a chemical change, as matter is neither created nor destroyed.

Front

What is an example of a chemical change?

Back

Mixing baking soda and vinegar is an example of a chemical change.

Front

What is an example of a physical change?

Back

Melting ice cubes in a glass of water is an example of a physical change.

Front

What happens to ice cream when left in the sun?

Back

The ice cream melts and becomes liquid due to heat from the sun.

Front

What is the result of mixing two clear liquids that get warm and cloudy?

Back

This indicates a chemical change has occurred.

Front

What is the definition of mass?

Back

Mass is the amount of matter in an object, usually measured in grams or kilograms.

Front

What is the effect of temperature on the state of matter?

Back

Increasing temperature can cause solids to melt into liquids, and liquids to evaporate into gases.

Front

What is the difference between a chemical and physical change?

Back

A chemical change results in new substances, while a physical change does not change the substance's chemical identity.