Water Unit Flashcards
H2O (s) –> H2O (l) shows the process of _______________________.
melting
H2O (l) –> H2O (g) shows the process of _______________________.
evaporation or boiling or vaporization
In plants, when water is lost through the leaves to the atmosphere it is called ___________________________________.
transpiration
In humans when water is lost through your pores it is called ________________________________.
perspiration
A ___________________________ has an invisible boundary that is bordered by mountaintops and ridges and funnels water into reservoirs.
watershed
_______________________________ is the process of water moving through the ground.
percolation
The freezing point of water is ___________ and the boiling point is ___________.
FP is 0 degrees C BP is 100 degrees C
Condensation occurs when water in the __________ is _____________ and forms on the surface of something like a water bottle or fish tank.
air is cooled
Acids have a pH range of ____ to ____;
acids: 1 to 6
bases have a pH range of ____ to ____
bases: 8 to 14
neutral substances have a pH of ____
neutral: 7
In the formula C12H22O12 the simplest ratio of atoms is ___C: ___H: ___ O
6C: 11 H: 6 O
The change of H2O (g) –> H2O (l) is called _________
condensation
H2O (l) –> H2O (s) is called ______
freezing
Acids have more ____ ions than _______ ions.
more H+ ions than OH- ions
more Hydrogens ions than Hydroxide ions
Bases have more ______ ions that _______ions.
more OH- ions than H+ ions
more Hydroxide ions than Hydrogen ions
shape of the land is referred to as_______
topography
a zone of saturation under the ground is called an____
aquifer
the level of water in an aquifer is called the ___
water table
water that infiltrates the ground is called___
groundwater
how fast water moves through the soil is called a ____
rate of percolation
The word basin can refer to collection points such as ___, ____, _____ and ______.
ponds, lakes, reservoirs and rivers.
ice is ________ dense than liquid water and therefore will ________.
less; float
the substance that does the dissolving in a solution is called the ____.
solvent
the substance that gets dissolved in a solution is called the ____.
solute
The human body is _______% water
70%
Water covers almost \_\_\_\_ % of the earth, and most of it is \_\_\_\_\_\_water (97%)
80%; salt
Fresh water is actually less than ____ %. Glaciers hold about ______% of water.
Fresh water : 1%
Glaciers 2%
water is neutral because it has equal amounts of _____ and _________ ions present in it.
Hydrogen and Hydroxide
Acids turn litmus paper this color
red
Bases turn litmus paper this color
blue
Acids are ______ in phenolphthalein
clear
Bases are ______ in phenolphthalein
bright pink (fuschia) magenta
pH paper is shades of ______ in acids
red
pH paper is shades of ______ in acids
blue
pH paper is ______ in neutral solutions.
green
