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| What is the system of measurement used in science? |
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| what word means the amount of matter an object has? |
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| what tool is used to measure mass? |
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| matter is anything that has ____ and _______. |
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| the amount of space an object takes up is its _______. |
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| Density is the ____ per unit ______. |
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| The best way to find an irregularly shaped solid is |
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| how easily an substance moves |
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| all phase changes are.... |
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| What are two liquids with high viscosity? |
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| What are three substances that sublime? |
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Definition
| Snow, Iodine Crystal, Co2 |
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| What phase change is a solid becoming a liquid? |
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| What phase change is a liquid becoming a solid? |
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| What is the freezing point of h20? |
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| What is the melting point of h20? |
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| What is the boiling point of h20? |
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| What is the dew point of h20? |
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Definition
| around 50 degrees celcius |
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| When matter freezes, what happens to its energy? |
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| When matter boils, what happens to its energy? |
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| What is a physical change? |
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| A change only in appearance. |
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| What is a chemical change? |
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| When a substance changes into a new substance |
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| What kind of change is rising bread dough? |
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| What kind of change is density? |
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| What kind of change is volume? |
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| What kind of change is rusting metal? |
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| What kind of change is melting? |
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| what kind of change is neutralization? |
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| What are two or more substances, in the same container, not chemically combined? |
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| What is it when one solution is completely dissolved in another? |
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| what are the simplest pure substances found on earth? |
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| What are pure substances made of more than one chemically combined element? |
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| What is the smallest particle of an element that has all the properties of that element? |
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| What is the smallest particle of a compound that has all the properties of that compound? |
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| What are the small numbers in formulas used to tell how many atoms are present? |
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| What are combinations of elements used to represent compounds? |
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| What are substances that are made of more than one element that are chemically combined? |
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| What can compounds be broken into? |
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| What are combinations of elements used to represent compoundS? |
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| what type of observation is done w/o measurement? |
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| what type of obseravtion is done with measurement? |
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| Three categories of matter? |
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Term
| what is a heterogenous mixture? |
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Definition
| mixture that isn't the same throughout |
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Term
| what is a homogenous mixture? |
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Definition
| a mixture that is the same throughout |
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| what is another name for a homogeneous mix? |
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| what is an alloy? 3 examples please |
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| an alloy is a solid solution with 2 parts examples are steel bronze brasz |
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| matter with the same fixed composistion and properties |
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| what are short hand abbreviations for element names? |
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