States of Matter
What are the four states of matter?
Solid, Gas, Liquid, Plasma
What percent of water on earth is usable to humans?
1%
Where do we get our water?
Chesapeake bay, Potomac river, and the Occoquan Reservoir.
True or False?
Water expands when it freezes.
True
True or False?
Plasma exists on earth.
False
What is the average American usage of water per day?
100 gallons
What are 2 ways we mentioned to help conserve our water?
Not running the tap while brushing your teeth, starting the washing machine only when the load is full, or take shorter showers.
Why is water known as the "Universal Solvent"?
Because it dissolves the most substances
Which form of water has a lattice structure?
Ice or Solid
If humans don't change the way that we treat our water, what will this do to our water quality?
It will make it a lot worse.
What is water conservation?
Usage of water efficiently, avoiding unnessecary usage
What are the properties of water in a liquid form?
Ex. Definite volume, definite shape
Definite volume, No definite shape
What are the properties of water in a gas form?
Ex. Definite Volume, Definite Shape
No definite, No definite shape.
In our presentation, what are the 3 main things we said people use water for?
Cleaning, drinking, and watering crops.
How does the growing population impact the water that people get? Does it increase, or decrease?
The amount of water decreases.
What does it mean for something to be cohesive?
Two of the same chemical compounds stick together.
What is plasma made up of?
Neutrons and Electrons
Chemicals, salt, fertilizers, oil, or lead.
What wastes more water, a leaky toilet or taking a long shower?
A leaky toilet.
What are the 6 properties of water?
Polarity, Excellent Solvent, Cohesive and Adhesive, High Heat Capacity, High Heat of Vaporization, Water is less dense as a solid than a liquid.