8th Grade Science Review

Front

What type of wave has a frequency of 10^22?

Back

Gamma Rays

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Front

Which element has chemical properties most similar to Sulfur?

Back

Selenium

Front

What factor causes gas and dust to pull together during the first stage of star formation?

Back

Gravity

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

What is a physical characteristic of sulfur?

Back

Brittleness

Front

What are the three main types of waves?

Back

Mechanical, Electromagnetic, and Matter Waves

Front

What is the periodic table?

Back

A tabular arrangement of chemical elements organized by atomic number, electron configuration, and recurring chemical properties.

Front

What is the difference between metals and nonmetals?

Back

Metals are typically shiny, malleable, and good conductors of heat and electricity, while nonmetals are usually dull, brittle, and poor conductors.

Front

What is gravity?

Back

A force that attracts two bodies towards each other, proportional to their masses and inversely proportional to the square of the distance between them.

Tags

NGSS.MS-PS2-4

Front

What is the definition of a chemical property?

Back

A characteristic of a substance that can only be observed during a chemical reaction.

Tags

NGSS.MS-PS1-2

Front

What is the significance of the atomic number?

Back

It represents the number of protons in the nucleus of an atom and determines the element's identity.