Definitions
Define: Dehydrated
When you do not drink enough water to stay healthy.
Where can we find saltwater?
Oceans
What are Earth's 4 spheres?
Define: Fair Test
A fair test is where only one variable is changed while all other variables are kept the same.
What percentage of Earth's water is freshwater?
3%
Define: Snowpack
Total amount of snow and ice on the ground in mountainous areas
Will an egg float in a lake or ocean?
What is the hydrosphere?
The hydrosphere consists of all water in various forms (rivers, lakes, oceans, snow, ice)
What is the difference between criteria and constraint?
Criteria: The goal or what students need to accomplish
Constraint: Constraints are the materials and resources available and limit possible solutions
Define: Nitrate
Chemicals that, in high concentrations, can be toxic to aquatic life, animals, and humans.
What is one way humans can negatively impact drinking water?
By spraying plants with fertilizer which turns to nitrates (chemicals) which can negatively impact drinking water.
What does the prefix geo- mean?
Earth/ground
How would you design a 3 step water treatment process to filter water using what you know from our lab and videos we have watched this unit?
Answers will vary.
3 step process could include:
1. small coffee filter & large coffee filter in 1 cup, 2. activated carbon in 2nd cup 3. large filter and small filter in 3rd cup
How can people get groundwater out of the ground?
Wells
Define: Irrigation
Irrigation is the process of watering the ground, or when water is taken from one place and sent to where it is needed.
Where can we find most of our freshwater and is it accessible to us? Why?
Glaciers, no because it is frozen
Give 1 example of how the atmosphere & biosphere interact.
(Responses vary)
Possible answer: Wind can carry seeds to new places so plants can grow
In the water system pump lab, what are 2 possible problems that could happen?
Answers will vary.
Possible responses:
-3 way valve not used properly, not moving water to correct beaker
-Tubes not connected to connectors properly
-Tube not in beaker fully
How can you tell the difference between a lake, river and glacier?
A river flows from place to place, while a lake is surrounded by land on all sides, a glacier is frozen water located in the colder parts of the Earth
Define: Groundwater
*Must be more specific than water found in the ground
Water found underground in cracks and spaces in soil, sand and rock
If a snowpack decreases, what are 2 effects on the Earth?
Responses may vary.
Examples-Decrease: less water for farming & crops
less water for drinking/for cities & towns
Choose 2 spheres and come up with 2 examples of how they interact.
Responses vary.
You have 2 minutes- on a piece of paper: Draw and LABEL a model of a water system pump from one beaker to another. (this should feel familiar to our water pump lab!!
Materials given:
2 beakers
5 lengths of airline tubing
1 plastic syringe
4 connectors
1 three-way valve
Criteria: The water must travel from one beaker on the floor, through 5 lengths of tubing, to another beaker on the desk.
Answers will vary slightly, see teacher's drawing of a possible response.
What are 2 ways we can conserve water?
Answers will vary.
Examples- Do not leave water on when brushing your teeth, take shorter showers