Particle Theory & States of Matter
What are the tiny building blocks that make up all matter called?
Particles
What is a solution?
A solution is a mixture where one substance is dissolved evenly in another.
What household tool is used to separate cooked pasta from boiling water?
A colander (or strainer).
Most minerals, like gold or iron, do not come out of the Earth pure. They are found mixed with rock in a material called(answer)
What is Ore?
What is a pure substance?
A pure substance is made of only one type of particle.
In which state of matter are particles packed tightly together and only vibrate in place?
Solid
What are the two parts of a solution called?
The solute and the solvent.
What is the name of the process where a liquid is turned into a gas to leave a solid behind?
Evaporation.
To make nuclear energy, we extract this radioactive element from the ground, which can create dangerous waste.
What is Uranium?
Is distilled water a pure substance or a mixture?
A pure substance.
According to Particle Theory, what happens to the speed of particles when you add heat?
They move faster (or speed up)
Why does sugar seem to disappear when mixed with water?
The sugar dissolves and spreads evenly between the water particles.
Why does using a magnet separate iron filings from sand, but not from aluminum?
Answer: Iron is magnetic, but aluminum and sand are not.
After mining separates the valuable mineral from the rock, the leftover waste material is often a mixture of water, chemicals, and rock called(answer)
What are Tailings?
Why is salt considered a pure substance but salt water is not?
Salt has only one type of particle, but salt water has salt and water mixed together.
which state of matter has no fixed volume fills whatever container it is in?
gas
Use the Particle Theory to explain why salt water looks clear.
Salt particles dissolve and spread evenly between water particles, making them too small to see.
This separation technique uses a screen or sieve to separate large solids from smaller solids (like rocks from sand).
What is sifting or sieving?
Maple syrup is produced by taking sap, a dilute solution, and boiling it to remove water. This industry relies on this separation method.
what is evaporation
If you shine a flashlight through a liquid and the beam of light scatters, the liquid is likely a Mechanical Mixture, not a (answer)
What is a Solution or Pure Substance?
you can compress a gas but not a solid what does this prove exists between the particles
Spaces or empty space
Use the Particle Theory to explain why heating water helps sugar dissolve faster.
Heat makes particles move faster, helping sugar particles spread more quickly between water particles.
This complex process involves boiling a solution to turn a liquid into a gas, trapping the gas, and cooling it back into a pure liquid.
What is distillation?
Many factories use water to cool their machines and then dump the hot water back into lakes. This is called Thermal Pollution, and it is bad because hot water holds less of this gas that fish need to breathe
What is Oxygen?
Air contains Nitrogen, Oxygen, and Argon, but it looks like one phase. Therefore, air is classified as this.
what is a sloution