Energy in the sun is produced as a result of nuclear ____ reactions.

• fusion
• fission
• waste
• sub

Tags

NGSS.HS-ESS1-1

In a nuclear reactor, electricity is produced from what element?

• Plutonium
• Uranium 235
• Radon 220
• Lead 232

Tags

NGSS.HS-PS1-8

Neutrons released in a fission reaction can strike other nuclei and cause a 

• meltdown
• take down
• break down
• chain reaction

Tags

NGSS.HS-PS1-8

The process by which nuclei having small masses are united to form a single larger nucleus is called nuclear ____.

• fusion
• fission
• reactivity
• waste

Tags

NGSS.HS-PS1-8

What makes something radioactive?

• elements with an atomic number above 81
• an unstable nucleus
• contaminated sewage
• It decays over time

Tags

NGSS.HS-PS1-8

What is nuclear fission?

• Big nucleus splits to small nuclei
• Small nuclei fuse into a bigger nucleus
• Stars
• Making compounds

Tags

NGSS.HS-PS1-8

_______________ is the process by which unstable atoms emit radiation until they become stable.

• Radiation
• Chemical Reaction
• Radioactive Decay
• Isotopes

Tags

NGSS.HS-PS1-8

After one ____________ of a radioactive element, half of the original radioactive material remains.

• half-life

• cycle

• decay

Tags

NGSS.HS-PS1-8

A radioisotope is any atom that contains an unstable _____.

• energy level

• nucleus

• orbital

• electron

Tags

NGSS.HS-PS1-8

What are three effects of nuclear radiation?

• ionizes atoms

• molecules change

• stabilizes the nucleus

• cellular function breaks down

Tags

NGSS.HS-PS1-8