Ch. 1: Modeling Matter - Celebration of Learning

What is plasma?

• A solid state of matter

• A state of matter similar to gas, but electrically conductive and containing an equal number of positive ions and electrons

• A liquid state of matter

• A state of matter with no electrical conductivity

What does the Big Bang Theory explain?

• The formation of the Earth

• The origin of the universe from a single point that expanded into all matter and energy that exists

• The creation of stars only

• The end of the universe

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NGSS.HS-ESS1-2

What is an isotope?

• An atom with the same number of protons and neutrons

• An atom with a different number of protons and neutrons

• An atom with the same number of protons but different numbers of neutrons

• An atom with a different number of protons but the same number of neutrons

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NGSS.HS-PS1-8

What is nuclear fusion?

• A process where a nucleus splits into smaller parts

• A process where two or more atomic nuclei join to form a single heavier nucleus

• A process where electrons are shared between atoms

• A process where protons are removed from a nucleus

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

What powers the sun?

• Chemical reactions

• Nuclear fission

• Nuclear fusion

• Gravitational forces

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NGSS.HS-ESS1-1

What process do stars use to fuel and sustain themselves?

• Nuclear fission

• Combustion

• Nuclear fusion

• Photosynthesis

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NGSS.HS-ESS1-1

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What happens to a star when it depletes its resources of light nuclei?

• It becomes a planet

• Its gravity causes it to collapse

• It explodes immediately

• It stops shining

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NGSS.HS-ESS1-1

What is a key difference between nuclear fusion and nuclear fission?

• Fusion occurs spontaneously on Earth

• Fission involves the splitting of atoms

• Fusion is a type of combustion

• Fission is used by stars to sustain themselves

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NGSS.HS-PS1-8

What does it mean to synthesize information?

• To separate information into different parts

• To combine information or data from many sources

• To delete unnecessary information

• To memorize information

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NGSS.MS-ETS1-3

A class uses 10 students to model a lithium atom. Each student represents a particle in the atom. Three students wear signs with a “+” sign, representing ​ (a)   The four students with “0” signs represent ​ (b)   . Each of the remaining students wears a “–” sign, representing​ (c)   . What do the students with “+”, “0”, and “–” signs represent, respectively?​ (d)  

• Protons
• Neutrons
• Electrons
• Subatomic Particles
• Isotopes

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NGSS.MS-PS1-1