Unit 2

Subatomic particles with a negative charge

• Electrons

• Neutrons

• Protons

• Quarks

Tags

NGSS.MS-PS2-3

subatomic particles found on the outermost shell & responsible for the atom's reactivity

• neutrons

• valence electrons

• isotopes

• ions

Subatomic particles with a positive charge

• neutrons

• atomic mass

• protons

• isotopes

Tags

NGSS.HS-PS1-8

Subatomic particles that are neutral in charge

• Neutrons

• Protons

• Nucleus 

• Electrons

What type of bond forms when 2 or more electrons are SHARED?

• Covalent bond

• Incomplete bond

• Ionic bond

• Metallic bond

What type of bond forms between two or more atoms that are charged (+/-)?

• Covalent bond

• Incomplete bond

• Ionic bond

• Metallic bond

Tags

NGSS.HS-PS1-3

Large bodies of water do not quickly fluctuate in temperature. Why?

• Water is a solvent.

• Water has a high heat capacity.

• Water acts as a buffer.

• Water is non-polar.

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS3-4

What two elements make up water?

• Helium and oxygen

• Hydrogen and oxygen

• helium and carbon

• oxygen and carbon

Tags

NGSS.MS-PS1-1

Water is a universal solvent because it...

• It can be found anywhere

• It freezes when it gets cold

• floats when frozen

• Dissolves most substances

Tags

NGSS.HS-ESS2-5

The fact that ice floats on liquid water is due to the fact that water's solid is ___________ than it's liquid form

• less polar

• more polar

• less dense

• more dense

Tags

NGSS.MS-PS1-4