Pure Substances
Name 3 Pure substances
Mr. Amodeo will confirm
Name 1 homogenous mixture AND 1 heterogenous mixture
Mr. Amodeo will confirm
In a solution of hot chocolate, the milk or water acts as this—the part of the solution that does the dissolving.
Solvent
If you are trying to separate sand from water, you would pour the mixture through a paper mesh or mesh screen using this common technique.
Filtration
When you put cake batter into a hot oven, it changes from a liquid into a solid. This happens because the high heat cooks this liquid ingredient, which is usually cracked out of a shell.
Eggs
This is a pure substance that cannot be broken down into anything simpler, and you can find all 118 of them on a specific famous scientific chart.
Element
This is a mixture where you can clearly see the different parts with your naked eye, like a bowl of lucky charms or a handful of soil.
Heterogenous Mixture (Mechanical Mixture)
Water is so good at dissolving things that it is often given this grand, two-word title by scientists.
The Universal Solvent
If you leave a glass of saltwater out in the sun, the water will turn into a gas, leaving the solid salt crystals behind. This method is called what?
Evapouration
This white crystalline substance is added to cookie dough to make it taste good, but it also acts as food for yeast when baking bread.
Sugar
Distilled water ($H_2O$) is a pure substance, but because it is made of two different elements chemically bonded together, it falls into this specific sub-category.
Compound
This is a mixture that looks completely uniform throughout, meaning it looks like a single pure substance even though it isn't.
Homogenous Mixture (Solution)
Temperature, Particle size, and movement/stirring are all factors that affect what?
Factors that affect solubility
This instrument is used to separate large physical parts from fine powders.
Sieve
Baking soda and baking powder are used to make dough rise because they release bubbles of this specific gas when they react with heat and moisture.
Carbon Dioxide (CO2)
Unlike mixtures, pure substances always have constant physical properties, meaning pure water will always freeze at exactly this temperature in Celsius.
0o Celsius
If you keep adding spoonfuls of hot chocolate powder to water until it can no longer dissolve and settles at the bottom, you have created this type of solution.
A Saturated Solution
This term describes a solution that contains a large amount of solute dissolved in a small amount of solvent, making it very strong.
Concentrated
This method of separation is used frequently in the recycling industry
Magnetism
Yeast is a key ingredient in bread baking. Scientifically speaking, yeast belongs to this kingdom of living organisms and eats sugar to stay alive.
Fungus (Fungi)
According to the Particle Theory of Matter, the particles in a pure substance are always moving, but they are held together by these, which are broken when the substance melts or boils.
Attractive forces (bonds)
What does the prefix "hetero" mean?
Different
Crushing a solid solute into a fine powder will cause it to dissolve much faster because it increases this specific property.
If you wanted to separate a mixture of rubbing alcohol and water, you would use this laboratory method, which boils the liquid with the lower boiling point and condenses it into a separate container.
Distillation
When water and flour are mixed together, two proteins bond to form this stretchy, elastic network that gives bread its structure and traps gas bubbles.
Gluten