Term
| What is the scientific method and all of its steps? |
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Definition
A set of steps used to approch a problem to concudt a repeatable experment.
Obeservation, questions, collect data, hypothese, experment, conclusion. |
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Term
| What is a controlled experment? Why is it important? |
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Definition
| The controlled experment is the part of the experment that has no changes done to it. It's important because it helps show the differnce between what's being changed. |
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Term
| Convert the following into scientific notation: 3.1 X 10^7 or 3.1 X 10^-7 |
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Definition
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Term
| What are all the basic SI (metric) for mass, temperature, length, and volume? |
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Definition
| Grams, Celsius, meters, and mL. |
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Term
| Know the values amd meaning of kilo, hecto, deka, deci, centi, and milli. |
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Definition
Kilo thousand
Hecto hundred
Deka ten
Deci tenth
Centi hundreth
Milli thousenth |
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Term
| Know the basic tools for measurig mass, temperature, length and volume. |
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Definition
Mass triple beam balance or a digital balance
Temperature thermometer
Length meter stick
Volume graduated cylinder
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Term
| Convert the following Measurments: 2500 mm to dkm, 0.034hg to cg. |
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Definition
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Term
| What is the conversion of mass? Why is it important? |
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Definition
| It is the principle that means that mass is converted into weight not energy. It is important because you will need to know this when converting. |
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Term
| In the compound Al2(SO4)3 how many atoms are in it; how many Oxygen compounds? |
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Definition
| 10 atoms and 4 oxygen compounds. |
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Term
| Tell me which of the following are physical or chemical changes; freezing point, density, rusting iron, cooking eggs, burning wood, dissolving salt, and buoyancy. |
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Definition
The physical changes are rusting iron, buoyancy, freezing point, burning wood, and cooking eggs.
The only chemical change is dissolving salt. |
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Term
| What is true about the density of a substance? |
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Definition
| If it is more dense than another one, it will stack on top of it while the substance rest on the bottom. |
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Term
| Explain the difference of a pure substance and a mixture? |
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Definition
| A pure substance is when it is chemically combined while a mixture is when it is physically combined. |
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Term
| What are part of a solution? |
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Definition
| Solute, solvent, and the solution. |
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Term
| What are ways you can dissolve a solute faster? Give all three. |
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Definition
Increase temperature, increase surface area, and increase pressure (stir it up) |
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Term
| Know the history of the modern atomic theory and the location of proton, neutron, and electron. |
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Definition
| 19th century chemists learned the concept of sub-atomic particles. The proton and neutron are in the nucleus and the electron is orbiting it. |
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Term
| Know how to find number of protons, neutrons, and electrons using the Periodic Table. |
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Definition
| The protons and electrons will be the atomic number; the number of neutrons is the atomic weight. |
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Term
| Be able to compare and contrast elements off the Periodic Table. |
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Definition
| Their location on the table and the atomic weigh will determine the difference. |
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Term
| Know the trends of the periodic table families: alkali earth metals, alkali metals, transition metals, halogens, metalliod, and noble gases. |
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Definition
| Alkali matals and alakli earth metals are good conductors, transition metals and noble gases are nonmetals and are poor conductors, amd the halogens and metalliods are fine conductors. |
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Term
| Why do atoms have no charge? Why do ions have a charge? |
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Definition
| The atom has the same number of protons and electrons that cancel each other out. An ion either loses or gains electrons. |
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Term
| Why is a mixture different from a compound? |
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Definition
| A mixture is physically combined and a compound is chemically combined. |
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Term
| Elements on the periodic table of elements are orginized by what two things? |
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Definition
| They are orginized by family amd chemical property. |
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Term
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Definition
| When their valence electrons are shared. |
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Term
| What are the two types of bonding? Explain the process and give examples. |
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Definition
| Covalent bonds and ionic bonds are the two types of bonds that are bonded by their valence electrons. |
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Term
| How many galaxies exist in the universe? |
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Definition
| More than 500 billion and the number is rising. |
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Term
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Definition
| Distance light travels in a year. |
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Term
| What is the difference between inner and outer planets in our galaxy? |
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Definition
| Inner planets move faster in velocity while outer planets move slower. |
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Term
| How are galaxies classified? |
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Definition
| They are grouped in 3 different catagories: spirals, elliptical, and irregular. |
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Term
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Definition
| How fast and object goes. |
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Term
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Definition
| How fast and object goes in a certain direction. |
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Term
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Definition
| How fast an object is speeding up. |
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Term
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Definition
| Force acting on an object. |
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Term
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Definition
| The object putting equal force on another object or gravity. |
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Term
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Definition
| The object putting unequal force on an object or gravity. |
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Term
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Definition
| The force resisting solid material or fluid layers. |
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Term
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Definition
| When a planet is closest from the sun. |
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Term
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Definition
| When a planet is furthest from the sun. |
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Term
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Definition
| When the Earth revolves around the sun once; equivilent to a year. |
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Term
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Definition
| When the Earth spins on its axis once; equivilent to a day. |
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Term
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Definition
| Displacement or difference in the apparent position of and object viewed. |
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Term
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Definition
| When the planets revolve around the Sun. |
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Term
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Definition
| When the planets revolve around the Earth. |
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Term
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Definition
| Motion in the direction opposite to the movemnent of something else. |
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Term
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Definition
| The shape the Earth orbits around the Sun in. |
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Term
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Definition
| The variable that the person doing the experiment changes. |
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Term
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Definition
| The variable that is being measured in the experiment. |
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Term
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Definition
| When a substance goes from a liquid phase to a gaseous phase. |
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Term
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Definition
| When a substance goes from a gaseous phase to a liquid phase. |
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Term
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Definition
| The temperature when a liquid turns into a gas. |
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Term
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Definition
| The temperature when a solid melts to a liquid. |
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Term
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Definition
| The temperature when a liquid turns to a solid. |
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Term
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Definition
| The measure of the amount of mass per volume unit. |
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Term
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Definition
| A solid material that is usually hard, shiny, and a good conductor of heat and electricity. |
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Term
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Definition
| Uusually dull and brittle and are poor conductors of heat and electricity. |
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Term
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Definition
| Also known as semi-conductors, they are a mixture and have charecteristics of both metals and non metals. |
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