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8th Grade > Chapter 2 Study Guide > Flashcards

Chapter 2 Study Guide Flashcards

1
Q

anything that has mass and takes up space

A

matter

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2
Q

a single kind of matter that is pure, meaning it always has a specific makeup or composition and a specific set of properties

A

substance

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3
Q

a characteristic of a pure substance that can be observed without changing it into another substance

A

physical property

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4
Q

a characteristic of a pure substance that describes its ability to change into different substances

A

chemical property

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5
Q

a pure substance that cannot be broken down into any other substances by chemical or physical means

A

element

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6
Q

the basic particle from which all elements are made

A

atom

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7
Q

a force of attraction between two atoms when they combine

A

chemical bond

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8
Q

groups of two or more atoms held together by chemical bonds

A

molecule

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9
Q

a pure substance made of 2 or more elements chemically combined in a set ratio

A

compound

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10
Q

shows the elements in the compound and the ratio of atoms

A

chemical formula

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11
Q

made of 2 or more substances

A

mixture

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12
Q

you can see the different parts

A

heterogeneous mixture

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13
Q

very evenly mixed so that you can’t see the different parts

A

homogeneous mixture

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14
Q

an example of a homogeneous mixture

A

solution

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15
Q

any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance

A

physical change

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16
Q

a change in matter that produces one or more new substances

A

chemical change

17
Q

matter is not created or destroyed in any chemical or physical change

A

law of conservation of matter

18
Q

the ability to do work or cause change

A

energy

19
Q

a measure of the average energy in a random motion of particles of matter

A

temperature

20
Q

the total energy of all of the particles in an object

A

thermal energy

21
Q

a change in which energy is taken in

A

endothermic change

22
Q

releases energy

A

exothermic change

23
Q

the energy stored in chemical bonds between atoms is a form of energy

A

chemical energy

24
Q

a form of energy that travels through space as waves

A

electromagnetic energy

25
Q

the energy of electrically charged particles moving from one place to another

A

electrical energy

26
Q

2 metal strips that are placed in a solution, but they do not touch

A

electrode

8th Grade (12 decks)

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