Nuclear fusion and nuclear fission

In nuclear fusion, smaller atoms are forced together to create larger atoms. Does this process release, absorb or maintain energy?

• Absorb energy
• Maintain energy
• Release energy

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NGSS.HS-PS1-8

a substance that can not be broken down into simpler substances by physical or chemical processes

• element
• mineral
• rock
• dirt

main sequence stars of all masses are fusing what element to make helium

• hydrogen
• iron
• gold
• beryllium

Do all stars make energy through fusion?

• Yes
• No
• Just our sun
• Only large stars

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Very high temperature and pressure is required for:

• Fission
•  Fusion
• Radioactive Decay

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NGSS.HS-ESS1-1

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Where does fusion occur naturally?

• Underwater
• All around us
• In the radioactive waste
• On the sun

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NGSS.HS-ESS1-1

Which atoms combine together during fusion reaction on the sun?

• Helium and Hydrogen atoms
• Hydrogen atoms
• Hydrogen and Lithium atoms
• Hydrogen and Carbon atoms

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NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

Hydrogen is the primary fuel

• Fission
• Fusion
• Radioactive Decay

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8