Fluids
What are fluids?
Anything that can flow... fluids are both liquids and gases!
What is the name of the part of a fish that controls whether they can swim at the surface of the ocean or at the bottom of it?
Swim bladder
The principle of buoyancy is named after who?
Archimedes
Which state of matter is the most compressible? Why?
Gas because there is a lot of room between the particles in gasses.
Which oil clean-up method is very effective and can remove over 90% of the spill?
Burning.
A fluids resistance to flow is also known as its ____________.
Viscosity
When a fish releases air from their swim bladder, they will begin to ________
sink
List each state of matter in order from most dense to least dense
Solid, Liquid, Gas (bonus 100 points for listing Plasma last)
Compressibility is the ability to put ______ on a substance.
Force
Explain what a skimmer does.
It acts like a vacuum, to suck up all the oil off of the surface of water.
On a different planet, your mass will stay the same but your ________ changes.
When a fish wants to swim to the surface they use their gills to collect which fluid? Be specific.
Oxygen
If an object is more dense than the liquid it is in, will it float or sink?
Sink
Compressing and object with pressure or force _______________ its volume
decreases
How many tons of oil pollute the Earth's water systems each year?
Three
The Particle Theory explains how matter ________ and _______.
changes and adapts
As water fills the submarine "b" tanks, it causes the submarine to become ______ buoyant.
less
Define density.
The amount of mass per unit volume of an object.
What is a hydraulic system? What is a pneumatic system?
Hydraulic systems use compressed liquids to perform a task.
Pneumatic systems use compressed gas to perform a task.
What are the 5 oil spill clean-up strategies that we discussed in class?
Booms, skimmers, sorbents, dispersants, and burning.
What part of a submarine gives it the ability to remain on the surface level as well as dive deep into the water?
Ballast tank
42.8g/L
Provide an example of a pneumatic and hydraulic system.
Answers may vary, check with teacher
Name 2 ways that oil spills can affect plants and/or animals.
Multiple answers are possible...
- oil coat plants and blocks sunlight and affects their growth.
- oil coats the feathers and fur of many animals affecting their buoyancy and/or ability to fly.
- oil is ingested by fish and quickly becomes part of the foodchain.
- when animals try to clean themselves, the oil is ingested and causes more damage.