Independent and Dependent Quantities in 6th Grade Math

The video tutorial by Education Galaxy explains the concepts of independent and dependent variables, essential for scientific experiments. It highlights that changing the independent variable affects the dependent variable. The tutorial provides examples, such as the impact of tardiness on test scores, salting ice, video games on reaction time, and fertilizer on plant growth. It includes practice problems to identify dependent and independent quantities in graphs and tables, emphasizing the application of these concepts in science and math.

What is the role of independent variables in scientific experiments?

• They are not relevant to the experiment.

• They are the outcomes measured in the experiment.

• They remain constant throughout the experiment.

• They are changed to observe effects on dependent variables.

Which variable is manipulated to observe changes in another in scientific experiments?

• Dependent variable.

• Control variable.

• Independent variable.

• Extraneous variable.

In the context of being tardy, what would be considered the dependent variable?

• The test scores.

• The time it takes to get to class.

• The subject being tested.

• The number of days tardy.

What would be the dependent variable in an experiment measuring the effect of study time on test scores?

• Study time.

• Test scores.

• Type of subject studied.

• Amount of study material.

What does the speed of ice melting depend on when salt is applied?

• Amount of salt on the ice.

• Amount of ice used.

• Time of day.

• Temperature of the environment.

If playing video games is considered, what is the independent variable?

• Time spent playing video games.

• Reaction time.

• Player's age.

• Type of video game.

In the context of the video game example, what does reaction time depend on?

• Type of game played.

• Game difficulty.

• Time spent playing.

• Number of players.

What is the dependent variable when using fertilizer on plants?

• Height of the plants.

• Plant species.

• Soil quality.

• Type of fertilizer.

In the graph problem, what does the amount earned depend on?

• Location of sale.

• Time of year.

• Price per cupcake.

• Number of cupcakes sold.

What is listed as independent in the table showing side lengths and perimeters?

• Side lengths of the pentagon.

• Number of sides of the pentagon.

• Area of the pentagon.

• Perimeter of the pentagon.