8th Grade Science Review

Front

What is a Supernova?

Back

A Supernova is the explosion that occurs at the end of a massive star's life cycle, resulting in a bright and powerful burst of energy.

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NGSS.HS-ESS1-3

Front

What is a White Dwarf?

Back

A White Dwarf is a small, dense star that is the remnant of a star that has exhausted its nuclear fuel and shed its outer layers.

Front

What is Speed in physics?

Back

Speed is the distance traveled per unit of time, typically measured in meters per second (m/s).

Tags

NGSS.MS-PS3-1

Front

What is Mass Number?

Back

Mass Number is the total number of protons and neutrons in an atom's nucleus.

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NGSS.MS-PS1-1

Front

How do you determine the number of atoms in a compound?

Back

The number of each type of atom in a compound can be determined from its chemical formula.

Tags

NGSS.MS-PS1-1

Front

What is a Compound?

Back

A Compound is a substance formed when two or more different elements are chemically bonded together.

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NGSS.MS-PS1-1

Front

What is the difference between Protons, Neutrons, and Electrons?

Back

Protons are positively charged particles in the nucleus, Neutrons are neutral particles in the nucleus, and Electrons are negatively charged particles that orbit the nucleus.

Front

What is Luminosity?

Back

Luminosity is the total amount of energy emitted by a star per unit of time, often measured in watts.

Tags

NGSS.HS-ESS1-1

Front

What is the relationship between temperature and luminosity in stars?

Back

Generally, hotter stars (higher temperature) are more luminous than cooler stars.

Front

What is an Atom?

Back

An Atom is the smallest unit of matter that retains the properties of an element.

Tags

NGSS.MS-PS1-1