Digestive System

Why do we need food?

• To make us feel full

• To keep us hydrated

• To provide materials for cell growth and repair

• To help us breathe

Tags

NGSS.MS-LS1-7

What is the primary function of the digestive system?

• To help us sleep

• To cool down the body

• To make food taste better

• To break down food into molecules the body can use

What does food provide that is essential for everything we do?

• Water

• Energy

• Sunlight

• Oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

NGSS.MS-LS2-3

What is mechanical digestion?

• When food is physically broken down into smaller pieces

• When food is cooked

• When food is broken down by enzymes

• When food is absorbed by the body

What is involved in chemical digestion?

• Eating food in liquid form

• Chemicals produced by the body break foods into their smaller components

• Freezing food to break it down

• Using physical force to break down food