Sun Structure

Label part 1

• #1 Core
• #1 Radiation zone
• #1 Convection zone
• #1 Photosphere

Label part 6

• #6 Prominences
• #6 Corona
• #6 Sunspots
• #6 Photosphere

Label part 5

• #5 Chromosphere
• #5 Radiation zone
• #5 Convection zone
• #5 Photosphere

Label Part 3

• #3 Chromosphere
• #3 Radiation zone
• #3 Convection zone
• #3 Photosphere

Label Part 2

• #2 Core
• #2 Radiation zone
• #2 Convection zone
• #2 Corona

Nuclear fusion is when

• the nuclei of two atoms join to produce lots of energy
• the nuclus of a large atom splits to release lots of energy

Nuclear fission is when

• the nuclei of two atoms join to produce lots of energy
• the nucleus of one large atom splits, releasing lots of energy

Energy is created in the core when two _____________ atoms join together to form a ______________ atom.

• helium, hydrogen
• carbon, hydrogen
• nitrogen, helium
• hydrogen, helium

The middle layer of the sun's interior that contains very tightly packed gas is called the _____________.

• photosphere
• chromosphere
• radiation zone
• convection zone

In which area of the sun does gas rise as it heats up, then fall back down as it cools?

• the core
• the radiation zone
• the convection zone
• the corona