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science final
st clements school 6th grade
| Question | Answer |
|---|---|
| Classifying matter: | SUBSTANCES AND MIXTURES |
| Differences between substances and mixtures | MIXTURES: MATTER THAT CAN VERY IN COMPOSITION SUBSTANCES: MATTER WITH A COMPOSITION THAT IS ALWAYS THE SAME |
| Types and characteristics of mixtures. | HETEROGENEOUS: MIXTURE IN WHICH SUBSTANCES ARE NOT EVENLY MIXED HOMOGENEOUS: A MIXTURE IN WHICH TWO OR MORE SUBSTANCES ARE EVENLY MIXED BUT NOT BINDED TOGETHER |
| Description of atom. | A SMALL PARTICLE THAT IS THE BUILDING BLOCK OF MATTER. |
| Description of a substance. | MATTER WITH A COMPOSITION THAT IS ALWAYS THE SAME |
| Description of an element. | A SUBSTANCE MADE OF ONLY ONE KIND OF ATOM. (HELIUM: He) |
| Description of a molecule. | TWO OR MORE ATOMS THAT ARE HELD TOGETHER AND BIND AND ACT AS A UNIT |
| Description of a compound. | SUBSTANCES MADE OF TWO OR MORE ELEMENTS THAT ARE CHEMICALLY JOINED IN A SPECIFIC COMBINATIONS. |
| Describe the parts of an atom, including each part’s location and charge. | PROTON: POSITIVELY CHARGED PARTICLE IN THE NUCLEUS OF AN ATOM NEUTRON: AN UNCHARGED PARTICLE IN THE NUCLEUS OF AN ATOM. ELECTRON: NEGATIVELY CHARGED PARTICLE THAT OCCUPIES THE SPACE IN AN ATOM OUTSIDE THE NUCLEUS. |
| How do you find the atomic mass, number of protons, electrons, & neutrons of a neutral atom on a periodic table. | TO FIND THE ATOMIC MASS YOU HAVE TO MULTIPLY THE ATOMIC NUMBER TWICE THE ATOMIC NUMBER IS THE NUMBER OF PROTONS THE ATOMIC NUMBER IS THE NUMBER OF NUMBER OF ELECTRONS THE ATOMIC MASS IS THE NUMBER OF NEUTRONS |
| What is the electron cloud? | THE REGION SURROUNDING AN ATOMS NUCLEUS WHERE ONE OR MORE ELECTRONS ARE MOST LIKELY TO BE FOUND. |
| What are ions? | ATOMS THAT EITHER HAVE A MISSING ELECTRON OR HAVE EXTRA ELECTRONS. |
| What are isotopes? | ATOMS THAT ARE EITHER MISSING OR HAVE EXTRA NEUTRONS. |
| What is matter? | ANYTHING THAT HAS MASS AND TAKES UP SPACE. |
| What are states of matter? | SOLID, LIQUID, MASS |
| How do particles move in states of matter? | LIQUIUD: LESS TIGHTLY PACKED AND MOVE MORE FREELY SOLID:THEY ARE TIGHTLY PACKED TOGETHER GAS:THEY ARE VERY FAR APART |
| What are the physical properties of matter? | MASS, WEIGHT, VOLUME, SOLUBILITY,MELTING POINT,BOILING POINT, & DENSITY |
| What are the chemical properties of matter? | FLAMMABILITY & ABILITY TO RUST |
| What are the four properties that are used to identify unknown substances? | DENSITY, MELTING POINT, CONDUCTIVITY, BOILING POINT |
| What are the signs of a chemical change? | COLOR CHANGE, STATE OF MATTER, FORM OF PRECIPITATE, & FORMATION OF GAS |
| What does the law of conservation of mass state? | THE TOTAL MASS BEFORE A CHEMICAL REACTION IS THE SAME AS THE TOTAL MASS AFTER THE CHEMICAL REACTION |
| Define energy. | THE ABILITY TO CAUSE CHANGE |
| What is the relationship between work and energy? | WORK IS THE TRANSFER OF ENERGY. |
| mechanical energy | THE SUM OF POTENTIAL & KINETIC ENERGY IN A SYSTEM OF OBJECTS. |
| thermal energy | THE SUM OF KINETIC & POTENTIAL ENERGY OF THE PARTICLES THAT MAKE UP AN ITEM |
| electric energy | THE ENERGY AN ELECTRIC CURRENT CARRIES |
| radiant energy | THE ENERGY THAT ELECTROMAGNETIC WAVES CARRY. |
| nuclear energy | ENERGY THAT IS STORED AND RELEASED IN THE NUCLEUS OF AN OBJECT |
| What does the law of conservation of energy state? | ENERGY CAN BE TRANSFORMED OR TRANSFERRED BUT CANT BE DESTROYED OR CREATED |
| Define friction? | A FORCE THAT RESISTS THE SLIDING OF TWO SURFACES THAT ARE TOUCH |
| What are the ways friction can be reduced? | APPLY A LUBRICANT, SUCH AS OIL, GREASE, OR GRAPHITE |
| What is waste energy? | THERMAL ENERGY THAT CANT BE USED |
| What is the difference between electrically neutral objects and electrically charged objects? | ELECTRICALLY NEUTRAL: A PARTICLE WITH EQUAL AMOUNTS OF POSITIVE CHARGE AND NEGATIVE CHARGE ELECTRICALLY CHARGED: AN OBJECT THAT HAS AN UNBALANCED AMOUNT OF POSITIVE CHARGE OR NEGATIVE CHARGE |
| What is an electric discharge? | THE LOSS OF AN UNBALANCED ELECTRIC CHARGE |
| What is an electric conductor? | A MATERIAL IN WHICH ELECTRIC CHARGES EASILY MOVE |
| What is an electric insulator? | A MATERIAL IN WHICH ELECTRIC CHARGES CANNOT EASILY MOVE (PLASTIC, WOOD, GLASS) |
| What is an electric field? | THE INVISIBLE REGION AROUND ANY CHARGED OBJECT WHERE AN ELECTRIC FORCE IS APPLIED |
| What is an electric force? | THE FORCE THAT TWO ELECTRICALLY CHARGE OBJECT APPLY TO EACH OTHER |
| How do electrically charged objects differ? | POSITIVELY CHARGED: AN OBJECT THAT HAS LOST ONE OR MORE ELECTRONS HAS MORE PROTONS THAN ELECTRONS NEGATIVELY CHARGE: AN OBJECT THAT HAS GAINED ONE OR MORE ELECTRONS HAS MORE ELECTRONS THAN PROTONS |
| What happens to wool when it comes in contact with a rubber balloon? | THE WOOL BECOMES POSITIVELY CHARGED |
| Do charged objects need to touch each other to apply force? | NO |
| What is an electric circuit? | A CLOSED OR COMPLETE IN WHICH AN ELECTRIC CURRENT FLOWS |
| What are the parts of a simple circuit? | 1.A SOURCE OF ELECTRIC ENERGY 2.A ELECTRIC DEVICE 3.AN ELECTRIC CONDUCTOR |
| What are the two types of electric circuits? | SERIES AND PARALLEL |
| What are the two types of electric currents? | DIRECT AND ALTERNATING |
| What is electric resistance? | A MEASURE OF HOW DIFFICULT IT IS FOR AN ELECTRIC CURRENT TO FLOW IN A MATERIAL |
| What is voltage? | THE AMOUNT OF ENERGY USED TO MOVE ONE COULOMB OF ELECTRONS THROUGH THE CIRCUIT |
| List things that are matter and things that are not | Water,ice,hydrogen Not anything that is not liquid solid or gas |
| List types and examples of physical change | If you leave I cream out it will melt but you can put it in the freezer |
| Why do you think objects might be unable to hold on to positive or negative charge for too long? | It becomes an electric insulator |
| List types and examples of chemical change | A bunt bread,trees getting burned by the fire |
Created by:
ariabelladaniels
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