Life Science 1.3 Water

Presentation

•

Science

•

11th Grade

•

Easy

•

NGSS

MS-PS1-1, MS-ESS2-4, MS-PS2-5

Standards-aligned

Brooke Manley

Used 3+ times

FREE Resource

12 Slides • 15 Questions

Multiple Choice

What word describes when water is attracted to other substances?

cohesion

adhesion

capillary action

surface tension

Multiple Choice

Why does ice float?

As water freezes, it expands and its density decreases.

As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.

As water freezes, air becomes trapped between the hydrogen bonds of water molecules.

As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Multiple Choice

Which end of the water molecule has a slightly positive charge?

the oxygen end

the hydrogen end

both ends are slightly positive

neither end is positive

Multiple Choice

Water is a universal solvent because it...

It can be found anywhere

It freezes when it gets cold

floats when frozen

Dissolves most substances

Multiple Choice

Which of the following is LEAST likely to dissolve in water?

nonpolar fats and oils

polar sugar molecules

salt made of a positive sodium ion and a negative chloride ion

all of the substances will dissolve easily in water

Multiple Choice

Large bodies of water, such as lakes and oceans, do not quickly fluctuate in temperature. What is the reason for this phenomenon?

Water is an acid.

Water is a versatile solvent.

Water has a high heat capacity.

Water acts as a buffer.

Multiple Choice

The tightness across the surface of water that enables paper clips to float is ____________.

adhesion

capillary action

surface tension

polarity

Multiple Choice

When water molecules stick easily to other water molecules, this is called what?

cohesion

adhesion

solution

polar molecule

Multiple Choice

What is the chemical symbol of water?

H2O

CO2

Multiple Choice

What about the chemical structure of water causes many of the critical properties that support life on Earth?

Hydrogen Bonds

Cohesive behavior

Polarity

Expansion Upon Freezing

Multiple Choice

What do the green bonds represent?

Covalent Bond

Hydrogen Bond

Ionic Bond

Multiple Choice

What two elements make up water?

Helium and oxygen

Hydrogen and oxygen

helium and carbon

oxygen and carbon

Multiple Choice

Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?

The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together

The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet

The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface

The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next

Multiple Choice

The hydrogen atom and oxygen atom do not share the electrons equally, resulting in partial charges at the ends of water molecules

Polarity

Cohesion

Adhesion

Heat Capacity

Multiple Choice

Substance that is dissolved in a solution

solvent

solute

suspension

solution

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