Digestive Physical and Chemical Changes

Breaking food down with the use of enzymes is known as:

• Chemical Digestion
• Physical Digestion

Where does digestion begin?

• In the small intestine
• In the mouth
• In the throat
• In the stomach

Saliva breaking down carbohydrates into sugars is...

• physical/mechanical
• chemical

Chewing and tearing apart food into smaller pieces is...

• physical/mechanical
• chemical

The stomach pushing and churning food is...

• physical/mechanical
• chemical

Enzymes, secretions, and converting into other substances are examples of:

• physical/mechanical digestion
• chemical digestion

When you break a cracker into pieces it is a 

• Chemical change
• Physical change
• Chemical Weathering
• Physical Weathering

Energy that is produced by the chewing is called...

• light
• mechanical
• thermal
• chemical

Tags

NGSS.MS-PS3-5

Where does most digestion and absorption occur?

• stomach
• colon
• small intestine
• esophagus

Saliva contains ___ that helps with ______

• teeth, mechanical digestion
• enzymes, mechanical digestion
• enzymes, chemical digestion
• teeth, chemical digestion