WorksheetsWater properties
Total questions: 30
Worksheet time: 5hrs 0mins
When water molecules stick to each other, it is called_________________
cohesion
adhesion
polarity
molecules
What property of water helps to moderate Earths temperature?
specific heat capacity
hydrogen bonds
as water freezes, it expands and its density decreases
capillarity
The hydrogen molecules have a slightly _____________ charge
positive
negative
neutral
small
What is polar molecule?
in which one element pulls on the shared electrons more than the other element in a bond
when water is really dense
when water freezes and turns into ice
when ice turns in to water vapor
What is suface tension?
uneven forces acting on particles of the liquids surface
a substance that dissolves other substances
the force between two substances
attraction between different liquid molecules
Hydrogen Bond
Attraction between a slightly positive hydrogen atom and a slightly negative atom. This bond occurs between two water molecules.
The process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches
The process of turning from liquid into vapor.
The ability to dissolve many different solutes
Specific heat capacity
The amount of energy required to change a substance's temperature
Downward movement of water through soil into groundwater.
Rain, snow, sleet, or hail that falls to the ground.
The change of a substance from a liquid to a gas
The oxygen molecule has a slightly _________________ charge
positive
neutral
negative
opposite
cohesion
attraction between molecules of the same substance; water molecules attract each other like little magnets.
a weak interaction involving a hydrogen atom and a fluorine, oxygen, or nitrogen atom
small pores in soil particles
closely packed together; thick
Adhesion
An attraction between molecules of different substances
Attraction between molecules of the same substance
Anything that has mass and takes up space
a positively charged ion (H+) formed of a hydrogen atom that has lost its electron
universal solvent
The ability of water to dissolve many different substances
Pull of water molecules upwards against gravity
Molecules having uneven distribution of charges.
amount of heat energy needed to increase a substance's temperature
What is the water molecule made up of?
2 hydrogen 1 oxygen
2 oxygen 1 hydrogen
1 platinum 2 oxygen
2 hydrogen 2 oxygen
Which characteristic of water will allow a paperclip to remain floating on water when the paperclip is gently placed on top of the water?
surface tension
cohesion
adhesion
capillarity
Water forms together into drops
Cohesion
Adhesion
Polarity
Surface Tension
Capillary Action
Pull of water molecules upwards against gravity
The attraction of water molecules to each other.
The attraction of water molecules to other substances
The ability of water to dissolve many different substances
A water strider can skate along the top of a pond because...
hydrogen bonds result in water cohesion (surface tension)
specific heat capacity
when water in a lake freezes, it floats, providing insulation for organisms below
surface tension as a result of hydrogen bonds
The tightness on the top layer of water due to cohesion
Surface Tension
transpiration
Adhesion
Coriolis effect
Polar Covalent Bond
A covalent bond in which electrons are not shared equally (results in an uneven charge across the molecule, eg water)
Water loving
A substance made up of atoms of two or more different elements joined by chemical bonds - can be broken down
a covalent bond in which the electrons are shared equally by the two atoms (no net charge)
Surface Tension
Thin film on the top of an area of water that allows for bug to walk across the water. Caused by the cohesion of water molecules.
An attraction between molecules of different substances
Excess of water runs down and does not sink into the soil and eventually makes it to the rivers, lakes, and oceans.
The continual movement of water among Earth's atmosphere, oceans, and land surface through evaporation, condensation, and precipitation
Adhesion
An attraction between molecules of different substances; when water molecules stick to molecules of a different substance.
Positively charged particles
attraction between molecules of the same substance; water molecules attract each other like little magnets.
refers to the cohesive forces between molecules at the surface
Hydrogen bond
A weak interaction involving a hydrogen atom and a fluorine, oxygen, or nitrogen atom
An attraction between molecules of different substances; when water molecules stick to molecules of a different substance.
Closely packed together; thick
Positively charged particles
__________________ means that water has two poles like a magnet.
Polarity
Water Properties
Surface Tension
Adhesion
universal solvent
a liquid that dissolves many substances
Downward movement of water through soil into groundwater.
a molecule having a positive charge on one end and a negative charge on the other end
Attraction between molecules of different substances
Ice floating in water is an example of
Density
Adhesion
Cohesion
Capillary Action
When water molecules stick to other objects, it is called ______________________.
cohesion
polarity
adhesion
molecules
Why does ice float?
as water freezes, molecules expand and its density decreases
as water freezes, molecules move closer and its density decreases
surface tension as a result of hydrogen bond
hydrogen and oxygen
surface tension
refers to the cohesive forces between molecules at the surface
refers to the small pores in soil particles
Negatively charged particle
Takes place outside of the nucleus
Cohesion
Attraction between molecules of the same substance
Attraction between molecules of different substances
intermolecular forces between molecules that contain hydrogen
Evaporation of water from the leaves of a plant
polarity
Molecules having uneven distribution of charges.
The attraction of water molecules to each other.
The ability of water to dissolve many different substances
As liquid water begins to freeze, it actually expands. The expansion traps air and allows the solid to float on the liquid.
Which of the following does NOT affect enzyme action
pH
Temperature
Concentration of enzymes and/or substrates
Stomach content
