2024 - 2025 (R) Review for Flashcard #5, Semester 1

Front

What is a dependent variable?

Back

A dependent variable is the variable that is measured in an experiment. It is affected by changes in the independent variable.

Front

What is an independent variable?

Back

An independent variable is the variable that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniform or have localized regions with different properties.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.

Front

What is a compound?

Back

A compound is a substance formed when two or more chemical elements are chemically bonded together.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

What is the normal boiling point?

Back

The normal boiling point is the temperature at which a substance changes from a liquid to a gas at standard atmospheric pressure.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the relationship between water volume and photosynthesis rate?

Back

The relationship can be studied by varying the amount of water given to plants and measuring the rate of oxygen production.

Front

What is the significance of measuring temperature in experiments?

Back

Measuring temperature helps determine the effects of heat transfer and energy changes in chemical and physical processes.