Which state of matter has molecules that vibrate the most?

• solid 
• liquid
• gas

Tags

NGSS.MS-PS1-4

Which statement is true?

• Oil is the most dense substance.
• Corn syrup is less dense than water.
• Oil is less dense than water.
• Oil and corn syrup have the same density but different masses.

A molecule is________

• a glob of gelatinous goo
• smaller than an atom
• filled with raisons
• more than one atom bonded together

Tags

NGSS.MS-PS1-1

Characteristic of a substance that can be  observed without changing it chemically, such as size, shape, density, and phase.

• Physical property 
• turtle 
• Physical change 
• Chemical property

How many Hydrogen (H) atoms are in NH₃O₅

• 3
• 4
• 5
• 1

Tags

NGSS.MS-PS1-1

In the equation,          2Mg + O₂ ---> 2MgO, which are the reactants?

• Mg and O
• MgO
• Mg and MgO
• O and MgO

Tags

NGSS.MS-PS1-2

Of these mixtures, which one is a solution? (S8P1a)

• A
• B
• C
• D

Tags

NGSS.MS-PS1-2

What is a homogeneous mixture? (S8P1a)

• a mixture that is the same throughout.
• a mixture that is made up of one type of atom.
• a mixture that is made up of one type of compound
• a mixture that cannot be separated through physical changes

Define a liquid. (S8P1b)

• Indefinite shape, indefinite volume
• Definite shape, definite volume
• Found in stars
• Definite volume, indefinite shape

What is happening at "D" on the graph? (S8P1c)

• Water is boiling
• water is evaporating
• water is melting
• the sublimation of water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4