Structure and Properties of Matter

When an ice cube melts, its state of matter changes from a

• gas to a liquid

• solid to a liquid

• liquid to a solid

• solid to a gas

Tags

NGSS.MS-PS1-4

In which state of matter does water have a definite shape and volume?

• gas

• liquid

• solid

Tags

NGSS.5-PS1-3

Which statement describes all matter?

• It has volume.

• It is made of particles.

• It has mass.

• All of the above.

Tags

NGSS.MS-PS1-5

Which diagram shows a model of a solid?

• diagram 1

• diagram 2

• diagram 3

Tags

NGSS.MS-PS1-1

is defined as an extremely small piece of anything.  (a)   are really, really small particles that are the building blocks for everything in the universe.  Even though atoms are really small, they are made up of other, even smaller particles.  One of these types of particles is called a (b)   , and it has a positive charge; another is called an​ (c)   , and it has a negative charge.

• particle

• Atoms

• proton

• electron

Tags

NGSS.MS-PS1-1

Match the following

• Atom

• Anything with both volume and mass

• Matter

• The basic building block of matter; made of electron(s), proton(s), and neutron(s)

• Molecule

• Matter with consistent properties throughout

• Crystal

• Solid material whose atoms are arranged in an ordered pattern

• Substance

• The smallest unit of a compound

Tags

NGSS.MS-PS1-1

Elements are made of ​ (a)   .

• atoms

• molecules

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

The number of protons in an atom is also known as the (a)   .

• Atomic number

• Mass number

• Neutron number

• Electron number

Answer explanation

The number of protons in an atom is also known as the atomic number.

Sodium is an element with ​ (a)   protons. It also has ​ (b)   valence electron, making the element ​ (c)  

• 11

• 1

• VERY reactive.

• unreactive

• somewhat reactive

• 22

• 23

• 2

Elements in the same column of the periodic table always have the same number of ​​ (a)  

• valence electrons

• Protons

• Neutrons

• Electrons