Numbers
What percentage of Earth's water is in the ocean?
97%
Give the vocabulary word that matches this definition:
All of the water on the earth
Hydrosphere
Why can't humans drink ocean water?
It has too much salt in it.
Name a living thing that lives and breathes in water.
Examples include:
fish
sea sponge
coral
If you were going to dig a well, which place would be the wisest choice?
A) On top of a mountain
B) Deep in a valley
B. Deep in a valley.
What percentage of EArth's water is fresh water?
3?
Give the definition for this vocabulary word:
Biosphere
All the living things on the earth
Name a pollutant that can contaminate water.
Some examples include:
oil
pesticides
fertilizers
Name a living thing that lives in water, but cannot breathe in water.
Examples include:
whales
dolphins
The water cycle explains how water keeps going through the same steps over and over again.
First, water from puddles, creeks, rivers, streams, lakes, etc. evaporates when it gets warm enough.
Then it is water vapor, a gas, in the air.
The next step is called ____________, when the water vapor cools down and turns back into liquid water droplets.
condensation
What percentage of Earth's water is in glaciers?
2%
Which vocabulary word matches this definition?
The layer of gases that surrounds the earth
Atmosphere
True or false?
Las Vegas doesn't need to worry about water supply, even though it's in the middle of a desert.
False
Name a living thing that begins life on land, but then spends its life in the water.
Sea turtle
What do the letters in H2O stand for? Spell the best you can.
H= hydrogen
O= oxygen
What percentage of Earth's water is available for us to use?
1%
Which vocabulary word means the solid parts of the earth, like the dirt and rocks?
Geosphere
When water from the ocean evaporates, does the salt in the water evaporate with it?
No
Name a living thing that can store water inside itself for a long period of time, which is how it can survive in very dry conditions.
Cactus
How can you make an egg float in water?
Add salt to the water
71%
True or false?
The hydrosphere, biosphere, geosphere, and atmosphere all interact with each other.
True
Water droplets
True or false?
ALL living things depend on water to survive.
TRUE!
If you get into a body of water that is very salty, how does this affect you?
A) It doesn't affect you at all.
B) It is harder to float or swim in due to the high salt content.
C) It is easier to float or swim in due to the high salt content.
C. It is easier to float or swim in water that is very salty.