Water W7D1

The chemical compound of water is

• HO
• H₂O
• H₃O
• HO₂

Tags

NGSS.MS-PS1-1

A water strider can skate along the top of a pond because:

• covalent bonds result in water cohesion
• hydrogen bonds result in water cohesion (surface tension)
• water striders have adapted to take advantage of water cohesion
• low surface tension of water

^{_{This photos shows water molecules in which state of matter...}}

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

_{This photo shows water molecules in which state of matter?}

• Gas
• Liquid
• Solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

_{Which atoms bond together to create a water molecule?}

• Oxygen and Hydrogen
• Carbon and Oxygen
• Hydrogen and Helium
• Helium and Carbon

Tags

NGSS.MS-PS1-1

^{_{This photo shows water molecules in which state of matter?}}

• Liquid
• Solid
• Gas

Tags

NGSS.MS-PS1-4

How many Hydrogen atoms does a single water molecule have?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What does "polar" mean?

• A molecule is cold

• A molecule has areas of positive and negative charge

Select the good defenition for PHYSICAL CHANGE:

• A CHEMICAL REACTION OCCURS & NEW PRODUCT ARE FORMED

• MATTER CHANGE FORM BUT NOT CHEMICAL IDENTITY

Select the good definition for CHEMICAL CHANGE:

• A CHEMICAL REACTION OCCURS & NEW PRODUCT ARE FORMED

• MATTER CHANGE FORM BUT NOT CHEMICAL IDENTITY

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5