Importance of Water

What is one of the main reasons water is important to all life on Earth?

• It is always cold.

• It has a number of unique properties.

• It is always clean.

• It is always salty.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

What is the effect of cohesion on the boiling point of water?

• It lowers the boiling point.

• It raises the boiling point.

• It has no effect on the boiling point.

• It makes the boiling point fluctuate.

Tags

NGSS.MS-PS1-4

What is the main topic of the provided learning material?

• Properties of air

• Properties of water

• Properties of soil

• Properties of fire

Tags

NGSS.MS-ESS2-4

What does the cohesive force among water molecules help to form on the hood of a car?

• A thin sheet of water

• Drops of water

• Ice crystals

• Steam

What causes water molecules at the surface to be attracted more strongly to each other than to air molecules?

• Adhesion

• Buoyancy

• Cohesion

• Gravity

What is adhesion?

• The attraction of molecules of one kind to substances of a different kind.

• The attraction of molecules of one kind to each other.

• The process of water evaporating.

• The process of water freezing.

Why do water molecules not stick to all surfaces?

• Because of the lack of attraction between water molecules and the molecules of the other surface.

• Because water molecules are too heavy.

• Because water molecules evaporate quickly.

• Because water molecules are too small.

What happens to water on windshields when anti-fog sprays are applied?

• The water evaporates.

• The water freezes.

• The water beads up into drops and blows away in the wind.

• The water sticks to the glass.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is an example of adhesion in plants?

• The flowers absorbing sunlight.

• The flowers growing taller.

• The stems of the flowers attracting water molecules and drawing the water up the plant.

• The flowers producing seeds.

Tags

NGSS.MS-ESS2-4

What happens to water droplets on a surface with reduced adhesion?

• They spread out evenly.

• They bead up into drops.

• They evaporate quickly.

• They freeze.