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Matter
| Term | Definition |
|---|---|
| MATTER | ANYTHING THAT HAS MASS AND TAKES UP SPACE |
| ATOM | THE BUILDING BLOCK OF MATTER |
| MOLECULE | THE SMALLEST PARTICLE OF A SUBSTANCE THAT HAS THE SAME PROPERTIES AS THE SUBSTANCE |
| PHYSICAL PROPERTIES | CHARACTERISTICS THAT ARE USED TO IDENTIFY STATES OF MATTER, SUCH AS THE FOUR MAIN PROPERTIES: MASS, WEIGHT, VOLUME, DENSITY |
| CHEMICAL PROPERTIES | PROPERTY OF A SUBSTANCE THAT CAN BE USED TO IDENTIFY IT AND THAT DESCRIBES HOW THAT SUBSTANCE REACTS WITH OTHER SUBSTANCES |
| SOLID | FORM OF MATTER THAT HAS A DEFINITE SHAPE AND VOLUME |
| LIQUID | FORM OF MATTER THAT HAS A DEFINITE VOLUME BUT NO DEFINITE SHAPE |
| GAS | FORM OF MATTER THAT HAS NO DEFINITE SHAPE OR VOLUME |
| PLASMA | SUPER-HOT GASES THAT HAVE TAKEN ON HIGH-ENERGY ELECTRICAL CHARGES |
| BOILING POINT | THE TEMPERATURE AT WHICH A SUBSTANCE CHANGES FROM A LIQUID TO A GAS |
| MELTING POINT | THE TEMPERATURE AT WHICH A SUBSTANCE CHANGES FROM A SOLID TO A LIQUID |
| FREEZING POINT | THE TEMPERATURE AT WHICH A SUBSTANCE CHANGES FROM A LIQUID TO A SOLID |
| VAPOR | A VISIBLE SUSPENSION IN THE AIR OF PARTICLES OF A SUBSTANCE |
| CONDENSE | TO MAKE DENSER OR MORE COMPACT |
| CONDENSATION | PROCESS OF CHANGING FROM A GAS TO A LIQUID OR SOLID STATE |
| EVAPORATION | THE PROCESS OF BECOMING A SUSPENSION OF PARTICLES IN THE AIR |
| FREEZING | THE WITHDRAWAL OF HEAT TO CHANGE SOMETHING FROM A LIQUID TO A SOLID |
| MELTING | THE PROCESS WHEREBY HEAT CHANGES SOMETHING FROM A SOLID TO A LIQUID |
| SUBLIMATION | A SUBSTANCE CHANGES FROM A SOLID DIRECTLY TO A GAS |
| BOILING | THE ACTION OB BRINGING A LIQUID TO TH TEMPERATURE AT WHICH IT BUBBLES AND TURNS TO VAPOR |
| ELEMENT | MATTER THAT HAS ONLY ONE KIND OF ATOM |
| COMPOUND | A SUBSTANCE FORMED WHEN TWO ATOMS OR MORE ELEMENTS JOIN TOGETHER |
| CHEMICAL BONDS | A LASTING ATTRACTION BETWEEN ATOMS, IONS OR MOLECULES THAT ENABLES THE FORMATION OF CHEMICAL COMPOUNDS |
| SOLUTION | FORMED WHEN ONE SUBSTANCE IS DISSOLVED IN ANOTHER SUBSTANCE |
| SUBSTANCE | A PARTICULAR KIND OF MATTER WITH UNIFORM PROPERTIES |
| COLLOID | A MIXTURE IN WHICH ONE SUBSTANCE OF MICROSCOPICALLY DISPERSED INSOLUBLE OR SOLUBLE PARTICLES IS SUSPENDED THROUGHOUT ANOTHER SUBSTANCE |
| PROTONS | A TINY, CHARGED PARTICLE IN THE NUCLEUS OF AN ATOM |
| ELECTRONS | A TINY, NEGATIVELY CHARGED PARTICLE OF AN ATOM THAT MOVES AROUND THE NUCLEUS |
| NEUTRONS | A TINY, UNCHARGED PARTICLE IN THE NUCLEUS OF AN ATOM THAT IS SIMILAR IN SIZE TO A PROTON |
| PERIODIC TABLE | AN ARRANGEMENT OF THE ELEMENTS THAT PROVIDES INFORMATION ABOUT THEIR PROPERTIES |
| ATOMIC MASS | THE PROTONS + NEUTRONS IN AN ATOM |
| ATOMIC NUMBER | THE NUMBER OF PROTONS IN AN ATOM |
| CHEMISTRY | THE STUDY OF MATTER, ITS PROPERTIES, HOW AND WHY SUBSTANCES COMBINE OR WEPARATE TO FORM OTHER SUBSTANCES AND HOW SUBSTANCES INTERACT WTIH ENERGY |
| CHEMIST | A SCIENTIST TRAINED IN THE STUDY OF CHEMISTRY |
| MODEL | A PICTURE, AN IDEA, OR AN OBJECT THAT IS BUILT TO EXPLAIN HOW SOMETHING ELSE LOOKS OR WORKS |
| NATURAL ELEMENT | AN ELEMENT THAT IS FOUND IN NATURE |
| NUCLEUS | THE CENTRAL PART OF AN ATOM THAT HOLDS THE PROTONS AND NEUTRONS |
| PROPERTY | A CHARACTERISTIC THAT HELPS IDENTIFY AN OBJECT |
| SYMBOL | ONE OR TWO LETTERS THAT REPRESENT THE NAME OF AN ELEMENT |
| VOLUME | THE PROPERTY OF SOMETHING THAT IS GREAT IN MAGNITUDE |
| MASS | THE PROPERTY OF A BODY THAT CAUSES IT TO HAVE WEIGHT |
| DENSITY | THE AMOUNT PER UNIT SIZE |
| BUOYANCY | THE TENDENCY TO FLOAT IN WATER OR OTHER LIQUID |
| WEIGHT | THE MEASUREMENT OF THE FORCE OF GRAVITY ON AN OBJECT |
| ACID | 0-6 ON THE PH SCALE |
| BASE | 8-14 ON PH SCALE |
| NEUTRAL | 7 ON PH SCALE |
| INDICATOR | LITMUS PAPER; SUBSTANCE WHICH BY CHANGING COLOR INDICATES THE CHEMICAL CONDITION OF A MATERIAL |