Digestive System: Physical & Chemical Changes

Molecules including sugars, starches, and fiber

• Chemical Change

• Chemical Energy

• Carbohydrates

• Chemical Digestion

the formation of a new substance with different properties; cannot be undone by physical means

• Chemical Change

• Chemical Energy

• Carbohydrates

• Chemical Digestion

uses enzymes to break down this food mass further into small molecules which the body can separate and use

• Chemical Change

• Chemical Energy

• Carbohydrates

• Chemical Digestion

is stored in the bonds between atoms and molecules

• Chemical Change

• Chemical Energy

• Carbohydrates

• Chemical Digestion

A molecule that contains at least two different elements

• Energy

• Digestion

• Element

• Compound

process that breaks food down into small molecules

• Energy

• Digestion

• Element

• Compound

a substance that is made entirely of one type of atom

• Energy

• Digestion

• Element

• Compound

Energy changes form

• Energy Transformation

• Digestion

• Element

• Compound

the energy an object has due to its motion

• Kinetic Energy

• Mechanical Digestion

• Organic Compound

• Molecule

the physical breakdown of large pieces of food into smaller pieces through, chewing

• Kinetic Energy

• Mechanical Digestion

• Organic Compound

• Molecule