December Review #3 (2024)

Front

What is an incomplete experiment?

Back

An incomplete experiment is one that does not include all necessary steps or repetitions to ensure accurate and reliable results.

Front

Why is it important to test each classmate multiple times in an experiment?

Back

Testing multiple times helps to account for variability and ensures that the results are consistent and reliable.

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.

Front

Give an example of a physical change.

Back

Liquid water turning into solid ice is an example of a physical change.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances.

Front

Give an example of a chemical change.

Back

Wood burning is an example of a chemical change.

Front

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

Back

A physical change does not change the substance's chemical identity, while a chemical change does.

Front

What is the role of a control in an experiment?

Back

A control is a standard against which the results of an experiment are compared, helping to ensure that the experiment is valid.

Front

Why is it important to measure variables in an experiment?

Back

Measuring variables allows scientists to understand relationships and effects, ensuring accurate conclusions.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.