Front

What are the reactants in the chemical equation pictured?

Back

CH₄ and O₂

Front

What is a process that leads to the transformation of one set of chemical substances to another?

Back

Chemical Reaction

Front

Why are the lungs considered an excretory organ?

Back

They get rid of carbon dioxide, a cellular waste.

Front

Which body system includes: Heart, arteries, veins - transports O₂ and glucose to cells and CO₂ away from cells?

Back

Circulatory system.

Front

What is the definition of OSMOSIS?

Back

Diffusion of water through a selectively permeable membrane.

Front

What is the main function of the respiratory system?

Back

To facilitate gas exchange, bringing in oxygen and expelling carbon dioxide.

Front

What is the role of the circulatory system?

Back

To transport nutrients, gases, hormones, and waste products throughout the body.

Front

What is a product in a chemical reaction?

Back

The substances that are formed as a result of a chemical reaction.

Front

What is the difference between reactants and products?

Back

Reactants are the starting substances in a chemical reaction, while products are the substances formed.

Front

What is diffusion?

Back

The movement of molecules from an area of high concentration to an area of low concentration.