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| What is the scientific method and all of its steps? |
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Definition
The scientific method is a method use to solve different types of problems.
- Observation -to look at a honey bee
- Question-why are their honey bees
- Research-what do bees do
- Hypothesis-what you think will happen
- experiment-why are their honey bees
- conclusion -what are your results
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| What is a controlled Experiment? |
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Definition
A control experiment is something that be changed in the experiment.It is important because if your results are strange then you can change it. |
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| a tiny particle that makes up mass or a elment |
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| A compound is the result of two or more atoms chemically combined . |
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| is a mixture that you can`t see the diffrent parts |
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| When star suddenly increases greatly in brightness and in size |
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| The minor component in a solution that dissolve in the solution |
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| The total number of protons and neutrons in a nucleus. |
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| A subatomic particle that is in the nuclei that has a posstive charge |
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| a horizontal row of the periodic table |
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| The speed of something going in a direction. |
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| why is a computer more accurate than a person when timing data? |
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Definition
a computer is more precise because a person won't be able to calculate the precise data when the computer is technically a robot.
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| an arrow released from an archers bow travels at a speed 65m/s for 22.5 seconds. how far does the arrow travel? |
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Definition
| The arrow travels 1,462.5 meters in 22.5 seconds. |
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| A piece of tin has a mass of 16.25 g and a volume of 2.26 cm^3. what is the density? |
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| find the density if the mass is 250g and the volume is 15cm^3? |
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| Something bigger than an atom that forms an object |
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| consists of two or more substances that are easily distinguishable |
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| A mixture of two substances |
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| Something that takes up space and you can feel/hold it |
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| The atomic number is the number that tells you where the elements are on the periodic table. |
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| Is the same as the atomic number in order to find it look at the atomic number |
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| Is the elements abbreviation |
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| How fast an object is moving |
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| Something that stops or gives a boost to the object at rest or in motion |
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| When one object rubs on the other object |
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| The way an object spins on its axis |
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| Sun as the center of the universe |
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| Is when water turns into gas |
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| Is when an object is completely melted by the heat every object has a different melting point |
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| Is silver, gold, copper, etc. |
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| Came up with the geocentric model |
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| Figured out the earths circumference |
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| Proposed a revised atomic theory |
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| Conducted an experiment that suggested atoms were not invisible |
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| Devolved an experiment to test Thompson's model |
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| Suggested that the energy of each electron was related to the electrons path around the nucleas |
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| Described relationship between motion and force |
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| Made the heliocentric model better by saying that the planets orbited in ovals |
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| Proposed the heliocentric model |
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Thought that the sun, moon, and planets orbited
Earth in perfect circles |
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| Proposed that objects of different masses will fall at the same rate |
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| Proposed the periodic table |
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| a force that is push or a pull an object |
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| The point in the orbit of a planet |
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| A theory that the earth is in the center of the universe |
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| A small change in the experiment |
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| The process of becoming more dense |
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| the point that liquid turns in to a solid |
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a chemical element that is not a metal
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| A subtace formed by atoms |
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| a material with a specific chemical composition |
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| The component of a Solution |
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| particles that have neither a defined volume |
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| When a atom losses a Valence electron |
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| A subatomic particle thathas a postive charge |
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| a group of elements with similar chemical properties |
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| Increase in the rate or speed |
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| to use an object to move another object |
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| The point in the orbit of a planet |
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| a variable that can be measured |
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| The temperature at which a liquid boils |
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| The degree of compactness |
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Term
| convert the following in scientific notation: 3.1X 10^7 or 3.1 X 10^-7 |
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Definition
3.1 X 10^7= 31,000,000
3.1 X 10^-7= .00000031 |
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| Elements on the periodic table are organized by 2 things? |
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Definition
Atomic Mass and Atomic Number
Groups or families. |
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Term
| Know the trends of the periodic table families: Akali Metals, Akali Earth Metals, Transition metals, Halogens, semiconductors/metalloids, and noble gasses. |
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Definition
Akali Metal= Group 1
Akali Earth Metal= group 2
Transition Metal= group 3-12
Halogens= group 13-16
semiconductors= group 17
noble gasses= group 18 |
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A Astronomical unit of length equal to just 10 trillion kilometres.
Distance that light travels in a vacuum in 1 year. |
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What are newtons 3 laws of motion? give an example for each.
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Definition
1. An object at rest will stay at rest and an object in motion will remain in motion unless acted upon by an outside force. Ex. Books on the table unless someone picks it up.
2. |
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Term
Know how to find the number of protons, neutrons, and electrons off the periodic table.
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Definition
Protons is the same as the Atomic Number
Neutrons- Atomic Mass-Atomic Number
Electrons- Atomic Number |
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| How many galaxies exist in the universe? |
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Definition
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