Pure Substances
Mixtures
Particle Theory
Homogeneous Mixture
Heterogeneous Mixture
100
What is a pure substance?
A pure substance is not mixed with any other substance or material, and cannot be separated.
100
What is a mixture?
Mixtures are two or more substances that are mixed together but not chemically joined.
100
What happens to particles when they are frozen?
They are tightly packed and vibrate, however they cannot move.
100
Give an example of a homogeneous mixture
Peanut butter, ice cream, milk
100

Give 1 example of a heterogeneous mixture.

Trail Mix (granola, seeds, nuts...)

200
What are the two main types of pure substances?
Elements and Compounds
200
What are the two main types of mixtures?
Heterogeneous & Homogeneous
200
What is something that has all identical particles?
Pure Substance
200
Can you take apart a homogeneous mixture? Why?
No, once they are combined the ingredient cannot return the its original state.
200
What is the difference between heterogeneous and homogeneous mixture?
Homogeneous looks the same throughout and you can't take the mixture apart. Heterogeneous can be taken apart and is very easy to tell the parts of the mixture.
300
The periodic table contains what?
Elements
300
What does homogeneous mean?
When a mixture does mix evenly-appears too look the same throughout.
300
What happens to the particles of an ice cube when they are heated up? Give 3 characteristics.
They melt, and progressively move faster-away from each other and increase in space.
300
Give an example of a homogeneous mixture that you cannot physically see, but is all around us.
Air.
300

Difference between colloids and supensions

The size of the particles

400
What is a compound? Give an example to support your answer.
A compound is a substance formed when two or more elements are chemically joined (Example: NaCl aka salt)
400
What is a heterogeneous mixture?
A heterogeneous mixture DOES NOT mix evenly, and you can take it apart.
400
Liquid to gas: 

Evaporation

400

Give an example of a solution

Water with salt, water with sugar

400
How do you spell Heterogeneous backwards? Close your eyes and spell it!
suoenegoreteh
500
Give three examples of an element.
Iron (Fe), Sodium (Na), Hydrogen (H) etc...
500
What happens when I combine a solute and a solvent?
You get a solution.
500
The three states of matter are also known as:
Solid, Liquid & a Gas
500
Give an example of a homogeneous mixture that is not a liquid.
A nail used for wood work.
500
You have 30 seconds to name 5 heterogeneous mixtures.
Salad, chex mix, soil, bits and bites, oatmeal chocolate chip
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