Water in the Body
What percentage of the human body is made of water?
60%
This is your body’s way of telling you that you need water.
Thirst
Name one natural source of drinking water.
Lakes, rivers, groundwater, springs
Water that has been purified to remove minerals is called what?
Evaporation
Water’s chemical formula.
H₂O
Which organ uses the most water and needs it for electrical signals?
The Brain
Name one sign of dehydration other than thirst.
Examples: dark urine, dizziness, headache, dry mouth (Answers may vary)
True or False: Bottled water is always safer than tap water.
False
The term for saving and efficiently using water resources.
Conservation
This is the only substance found naturally as a solid, liquid, and gas.
Water
Water helps regulate this measure of internal balance.
Body Temperature
True or False: Caffeinated drinks can contribute to dehydration.
True
Water that has been purified to remove minerals is called what?
Distilled Water
Water vapor becoming liquid again is called what?
Condensation
Water freezes at this temperature in Celsius.
0°C
Water is a key component of this bodily fluid that carries oxygen.
Blood
Name one health risk of chronic dehydration.
Kidney stones, heat stroke, urinary infections, etc.
The term for water stored underground in rock layers.
Aquifer
The continuous movement of water around Earth is called the ____.
Water Cycle
Water boils at this temperature in Fahrenheit.
212°F
Lack of water causes cells to shrink, leading to this condition.
Dehydration
Drinking water helps your body maintain a healthy temperature. What is the term for your body’s temperature staying in balance?
Homeostasis
This system is used by cities to clean and deliver water.
Municipal Water System
Polluted water that flows across land into rivers is called what?
Runoff
The force that allows insects to walk on water.
Surface Tension