8th Grade Science Review

Front

What is a jet stream?

Back

A narrow belt of high-speed winds that blow from west to east, typically found between 7 km and 16 km above Earth’s surface.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Front

What is a valence electron?

Back

Electrons in the outermost energy level of an atom.

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Front

What is a contour interval?

Back

The difference in elevation between adjacent contour lines on a map.

Front

What happens to forces when a marble rolls down a ramp?

Back

The forces are unbalanced, causing the marble to accelerate down the ramp.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Front

What are the main components of all atoms?

Back

Protons, neutrons, and electrons.

Tags

NGSS.MS-PS1-1

Front

What is the definition of balanced forces?

Back

Forces that are equal in size and opposite in direction, resulting in no change in motion.

Tags

NGSS.3-PS2-1

Front

What is the definition of unbalanced forces?

Back

Forces that are not equal and opposite, resulting in a change in motion.

Tags

NGSS.MS-PS2-2

Front

What is the role of protons in an atom?

Back

Protons determine the atomic number and identity of an element.

Front

What is the role of neutrons in an atom?

Back

Neutrons contribute to the mass of an atom and help stabilize the nucleus.

Front

What is the role of electrons in an atom?

Back

Electrons are involved in chemical bonding and determine the atom's charge.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS2-3