Pop

The steam made from the water in the kernel pushes against the shell until it bursts and becomes popcorn.

• True

• False

Tags

NGSS.MS-PS1-4

The process of popcorn popping is an example of which type of change?

• Physical change

• Chemical change

• Nuclear change

• Biological change

What is the main component inside a popcorn kernel that causes it to pop?

• Oil

• Water

• Starch

• Protein

At what temperature does the water inside a popcorn kernel turn into steam, causing it to pop?

• 100°C

• 150°C

• 180°C

• 212°C

Tags

NGSS.MS-PS1-4

Which part of the popcorn kernel is responsible for its ability to pop?

• Endosperm

• Pericarp

• Germ

• Bran

What is the scientific term for the popping of popcorn?

• Sublimation

• Gelatinization

• Explosive decompression

• Pericarp rupture

Which gas is primarily released when popcorn pops?

• Oxygen

• Carbon dioxide

• Nitrogen

• Steam

What is the approximate percentage of water content required in a popcorn kernel for optimal popping?

• 5%

• 10%

• 14%

• 20%

Which of the following best describes the texture change in popcorn after popping?

• Elastic to rigid

• Rigid to elastic

• Soft to hard

• Hard to soft

Tags

NGSS.MS-PS1-4

What role does the starch inside a popcorn kernel play during popping?

• It burns to create heat

• It absorbs water and expands

• It releases gas

• It melts to form a liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4