STEHN Solutions & Water

What part of the water cycle does this picture show?

• condensation
• precipitation
• evaporation

Tags

NGSS.MS-ESS2-4

What part of the water cycle does this picture show?

• condensation
• precipitation
• evaporation

Tags

NGSS.MS-ESS2-4

Evaporation happens when the sun ___________ water and turns it into vapor.

• cools
• heats up
• freezes
• lights up

All living things need ___________

• evaporation

• photosynthesis

• water

• Transpiratioh

How many atoms of Oxygen are in a water molecule?

• 1

• 2

• 0

• 3

What is the formula for water?

• HO₂

• h2o

• H₂O

• HO

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1

Why can water have no net charge but have slight charges in different parts of the molecule?

• The oxygen end is slightly negative and the hydrogen end is slightly positive
• The hydrogen end is slightly negative and the oxygen end is slightly positive
• The hydrogen and oxygen ends change in polarity
• Because it is hydrophobic

Water is a universal solvent

• True
• False

Tags

NGSS.MS-PS1-2

Which property of water allows it to stick to the sides of "water tubes" in plants and aid in moving water from the roots, up the stem, through the branch, and out through the leaves for photosynthesis? This is also called "capillary action".

• Adhesion
• Cohesion
• Hydrogen Bonds
• High heat of vaporization