Bundle 4 Review

Which is an example of chemical digestion?

• Chewing food

• Stomach moving food around

• Enzymes in your saliva breaking down food

• Intestines squeezing food

Breaking down food with your saliva is where chemical digestion starts

• TRUE!

• false

Where does mechanical digestion start

• Stomach churning

• Esophagus contracting

• Intestines squeezing

• Teeth chewing

Which one is a physical change?

• melting ice

• Mixing two liquids and getting a solid

• Mixing chemicals and creating bubbles

• A mixture begins to change temperatures.

Squeezing food in the intestines...

• chemical digestion

• physical change

Separating salt water by boiling it...

• physical change

• chemical change

Enzymes and acids in the stomach breaking down food

• chemical change

• physical change

Circulatory system

• pumps blood throughout the body

• Controls the movement of the body with nerves

• Contracts and helps body walk and run,

• Provides structure and suppor t

Turgor pressure

• Does photosynthesis

• carries sugar throughout the plant

• the amount of water within plant cells

• carries water up the plant

Which plant has a high turgor pressure

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