MDC Water

What Elements are needed to create a water molecule?

• 2 oxygen and 1 hydrogen

• 1 oxygen and 2 hydrogen

• 2 oxygen and 2 hydrogen

• 1 oxygen and 1 hydrogen

Tags

NGSS.MS-PS1-1

Water covers more than (a)   of the Earth's surface.

Tags

NGSS.MS-ESS2-4

What percentage of an organism is made up of water?

• 50 - 60%

• 25 - 90%

• 60 - 75%

• 80 - 90%

Reorder the following from largest percentage to smallest (hint: remember that as it moves from top to bottom the total amount gets smaller)

• Surface Water

• Salt Water

• Ground ice and Permafrost

• Ground Water

• Atmosphere

Tags

NGSS.MS-ESS2-4

Water is considered the _________ __________ because many substance dissolve in water (not all, but many).

(a)  

Match the following terms with their definition

• Have a negative charge

• Adhesion

• the attraction between 2 different kinds of molecules ex: water to skin

• Neutrons

• Have a positive charge

• Cohesion

• Have a neutral charge

• Electrons

• when the same molecules are attracted to each other - ex: water to water

• Protons

Reorder the following: in what order do you find density

• equals

• density

• volume

• divided by

• Mass

Because of the way that the molecules are joined in a water molecule and its charges, it is considered a:

• polar molecule

• a water molecule

• a hydrogen bond

• a teddy bear

What drive the water cycle?

(more than one answer may apply)

• Sunlight

• Gravity

• Evaporation

• Water

Tags

NGSS.MS-ESS2-4

Water moves continuously among the:

(check all that apply)

• oceans

• atmosphere

• land

• living things

Tags

NGSS.MS-ESS2-4