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The number of atoms in a substance.
EXAMPLE: A cup of water is 236.59 g. A cup of flour is 120 grams.
CONSERVATION OF MASS: Mass cannot be created or destroyed.

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Mass cannot be created or destroyed.
EXAMPLE: Int eh lab we took baking soda, vinegar a beaker and a ballon and put it on a digital scale. Then we put the vinegar in the beaker and put the baking soda in the ballon. then we put the baking soda in the finger causing the balloon to fill with gas. The mass stayed the same the whole time.

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When you bring a liquid to the temperature that makes it bubble and turn to vapor.
EXAMPLES: water boils at 100 C, 212 F, milk boils at 212.3 F.
BOILING POINT: the temperature that makes a liquid boil.

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When a liquid get very cold and turns to a solid.
EXAMPLES: When you take water and make it really cold it freezes.
FREEZING POINT: The temperature that a liquid freezes.

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When a solid turns to a liquid because of a certain temperature.
EXAMPLES: when ice melts to water, when you take chocolate and melt it
MELTING POINT: the temperature that solids melt at.

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A type if solid when the atoms are not in a pattern.
EXAMPLE: glass, plastic
SOLID: amorphous solids are solids.

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A type of solid when the atoms are in a pattern.
EXAMPLES: sugar, diamond, salt
SOLID: it is a type of solid.

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When the water vapor turns back to liquid.
EXAMPLE: the cloud are made of vapor and when it rains, it turns to liquid.

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When the sun heats water in oceans or rivers and causes it to turn to vapor, which rises.
EXAMPLES: everywhere around us evaporation is happening it is apart of the water cycle.

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Physical change is when a substance changes how it looks but is still the same.
EXAMPLES: when a piece of paper is ripped in half it is still paper.
BOILING: when a liquid turns to a vapor. This is a physical change because even though it switched forms it is still the same.
MELTING: when a solid turns to a liquid.
FREEZING: when a liquid turns to a solid.
CONDENSATION: gas to liquid
EVAPORATION: When a liquid turns to gas
These are physical changes because even though they are switching forms they still are the same substance.
CHEMICAL CHANGE: is when a substance changes into another substance. Which is not a Physical change.

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When a substance is combined with another substance to form a new substance.
EXAMPLE: When you take paper and a lit match and burn the paper it forms ashes.

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A substance microscopically dispersed into another substance.
EXAMPLES: milk, butter, marshmallows

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A mixture is when two substances combine.
EXAMPLES: kool aid, sand
There are two different types of mixtures, heterogeneous and homogeneous.
HETEROGENEOUS: a type of mixture
HOMOGENEOUS: a type of mixture.

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A heterogeneous mixture that has a solute that does not mix with the solvent, but is suspended above it.
EXAMPLE: oil, water , dish soap, honey, corn syrup

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When a solution is stronger because there is more solute than solvent.
EXAMPLE: When you are making hot chocolate and you double the amount of powder you put in, that is a concentrated solution.

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When a solution is weaker because there is less solute. (WATERED DOWN)
EXAMPLE: When you are making hot chocolate and you only pour in half of the powder that it says, that is a dilute solution.

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A liquid mixture where the solute and solvent are evenly dispersed.
EXAMPLES: kool- aid, tea, rubbing alcohol
Solute and solvents are the two parts of a solution.

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What is mixed with a solute to form a solution. The universal solvent is water.

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What is mixed with a solvent to make a solution. What is dissolved in the solvent.
EXAMPLE: the kool-aid powder or crystal lite
DILUTE: when there is less solute in the solution then there should be.
Concentrate: when there is too much solute that needs to be dissolved in thsolvent.

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A homogenous mixture is a mixture that looks the same and is the same throughout the whole mixture. It is thoroughly mixed and hard to separate.
EXAMPLES: water, vinegar, sugar water, salt water

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A mixture that is not the same throughout.
EXAMPLES:  a bowl of cereal, chocolate chip cookies.
COLLOID: is a type of heterogeneous mixture

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The temperature that makes a liquid bubble and turn to liquid and boil.
EXAMPLES:
100C Waters boiling point
212.3 F Milks boiling point

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The temperature that a liquid freezes at.
EXAMPLES: Water freezes at 0C. Milk freezes at -0.25C.

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The temperature that a specific solid will melt.
EXAMPLES: melting point of glass 1427- 1538 C, meeting point of gold 1,064C

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How compact something is. To calculate density
D=MASS/VOLUME.
EXAMPLE: Density of water=1 g/cm³
Density of gold= 19.32 grams per cubic centimeter

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The space that a substance takes up.
Ways to find volume: lengths widths height, water displacement, when you fill up a graduated cylinder and then put an item in and then look and the new value and subtract them, you can put a liquid in a graduated cylinder and see the volume.
EXAMPLE: a tissue box is 5X10x6  = 300 then 300 is the volume. you pour a certain amount of water into a graduated cylinder and it is at 300ml then 300 is the volume.

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Gas is a type of matter that has no fixed volume or shape.
EXAMPLES: carbon dioxe, oxegen, nitrogen
BOILING: is when a liquid turns to a gas.

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A liquid is a type of matter that has a fixed volume but does not have a fixed shape. That means it takes shape to whatever container it is in.
EXAMPLES: water, milk, vinegar
FREEZING:when a liquid turns to a solid
MELTING: when a solid turns to a liquid
BOILING: when a liquid turns to a gas.

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A solid is a type of matter that has a fixed volume and shape.
EXAMPLES: book, flag, cup
MELTING: melting is when a solid turns to a liquid.
AMORPHOUS AND CRYSTALLINE SOLID: are types of solid.

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Matter is any physical substance. Matter is all around us. There are four types of matter, liquid, solid, gas and plasma. Matter is anything that takes up space or has mas.
Examples: pencil, water, carbon dioxide
GAS: is a type of matter
LIQUID: is a type of matter
SOLID: is a type of matter
MIXTURE: two substances (matter) coming together