Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Matter Unit 24-25
Matter/Chemistry Unit Vocabulary Terms 24-25
| Term | Definition |
|---|---|
| matter | anything that has mass and volume |
| atoms | building blocks of matter |
| properties | characteristics used to describe an object or substance |
| states or phases of matter | the physical forms of matter, which include solid, liquid, gas, plasma, and Bose-Einstein Condensates |
| standard unit | a unit of measure that people agree to use. We use the metric system in science. |
| mass | the amount of matter (atoms) in an object |
| standard units for mass | grams (g) |
| tools to measure mass | pan/bucket balance, triple beam balance, electronic balance |
| volume | the amount of space an object takes up |
| weight | a measure of the force of gravity on an object |
| standard units for weight | Newtons (N) |
| tools to measure weight | scale or spring scale |
| standard units for volume | cm^3 for solids and mL for liquids |
| tools to measure volume | graduated cylinder for liquids and irregular shaped solids and a ruler for regular shaped solids |
| density | How tightly packed the atoms are in an object or substance. How heavy something is for its size. |
| thermal energy | heat energy |
| expand | When objects get bigger due to the atoms spreading out. Density decreases. |
| contract | When objects get smaller due to the atoms getting closer together. Density increases. |
| temperature | the measurement of the average speed of the atoms in an object or substance |
| melting | solid to liquid |
| freezing | liquid to solid |
| condensation | gas to liquid |
| evaporation/vaporization/boiling | liquid to gas |
| deposition | gas to solid |
| sublimation | solid to gas |
| melting point | The temperature at which a substance will melt or freeze. |
| boiling point | The temperature at which a substance will boil and begin to evaporate/vaporize. |
| element | A pure substance made of only one kind of atom |
| Periodic Table of Elements | A table that classifies elements by their physical and chemical properties; rows are called periods; columns are called groups |
| molecule | Two or more atoms held together by chemical bonds. They can be the same type of atom or different. |
| compound | A substance made up of atoms of two or more DIFFERENT elements joined by CHEMICAL bonds |
| pure substance | A sample of matter, either an element or a compound, that has definite chemical and physical properties. |
| mixture | Elements or compounds that are physically combined. |
| bonds | When atoms are chemically combined. |
| protons | Positively charged part of an atom located in the nucleus. |
| neutron | Neutral part of an atom located in the nucleus. Neutral means it does not have a charge. |
| electron | Negatively charged part of the atom. They are located on the outside of the atom. |
| nucleus | The name for the center of the atom where the protons and neutrons group together. |
| periods | rows on a Periodic Table |
| groups | columns on a Periodic Table |
| physical properties | Characteristics that can be observed with your 5 senses without changing the identity or chemical structure of the substance |
| chemical properties | Characteristics of a substance that determine how it will react with other substances. |
| physical changes | a type of change that alters the physical properties of a substance but does NOT change its composition (chemical formula) |
| chemical changes | A change in which one or more substances combine or break apart to form new substances. The bonds of the atoms are being broken and/or new bonds are being formed. |
Created by:
kdidonna
Popular Physical Science sets