Lifeboats Flashcard Review

Front

What is a controlled investigation?

Back

A controlled investigation is one where one variable is changed to see if it has an effect on the result.

Front

What does the term 'volume' refer to in relation to water displacement?

Back

The amount of water that is displaced is equal to the object's capacity or volume.

Front

What is the independent variable in an experiment?

Back

The variable that is changed in an experiment to see if it has an effect on the results.

Front

What is a graduated cylinder used for?

Back

A graduated cylinder is a tool used to measure the volume of liquids accurately.

Front

What is density?

Back

Density is a measure of how much mass is contained in a given volume. Objects that sink have more density than objects that float.

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the variable that is measured or observed in an experiment.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that the results are valid.

Front

How does changing the independent variable affect the dependent variable?

Back

Changing the independent variable can cause changes in the dependent variable, which is what the experiment measures.

Front

What is the purpose of a hypothesis in an experiment?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

What is the significance of water displacement in measuring volume?

Back

Water displacement is used to measure the volume of irregularly shaped objects by observing how much water is pushed aside.