The Formation of Elements up to Iron

What happens to the conditions as you go deeper into a dying star?

• They become cooler and denser.

• They remain the same.

• They become hotter and denser.

• They become cooler and less dense.

What is the primary element being fused during the first stage of a star's life?

• Helium

• Carbon

• Oxygen

• Hydrogen

Tags

NGSS.HS-ESS1-1

What happens when the hydrogen in the core of a star runs out?

• The star explodes immediately.

• The core starts to collapse.

• The star cools down.

• The star becomes stable.

• helium is formed

Tags

NGSS.HS-ESS1-3

What elements are produced during the helium fusion stage?

• Carbon and Oxygen

• Iron and Nickel

• Magnesium and Neon

• Hydrogen and Helium

Tags

NGSS.HS-ESS1-3

Where does all the carbon in the universe come from?

• Comets

• Dying stars

• The Sun

• The Earth's core

Tags

NGSS.HS-ESS1-3

What happens when the helium in the core of a massive star runs out?

• The star explodes immediately.

• The star cools down.

• The core starts to collapse again.

• The star stabilizes.

What elements are created during the third stage of fusion in massive stars?

• Iron and Nickel

• Magnesium, Neon, Sodium, and Aluminium

• Hydrogen and Helium

• Carbon and Oxygen

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What is the final element produced in the core of a massive star before it collapses?

• Iron

• Oxygen

• Carbon

• Helium

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What happens to a star when it can no longer release energy through fusion reactions?

• It cools down.

• It stabilizes.

• It becomes a black hole.

• It collapses and explodes.

Tags

NGSS.HS-ESS1-1

What is the chemical symbol for the final element produced in a star's core?

• C

• O

• He

• Fe

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3