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science 9 > Matter all around us > Flashcards

Matter all around us Flashcards

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Biology 101 flashcards
1
Q

what is matter?

A

anything that has mass and volume

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2
Q

what is all matter made up of?

A

very small particles that are constantly moving

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3
Q

what is mass?

A

the amount of matter in an object

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4
Q

what is volume?

A

the amount of space an object occupies

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5
Q

what is density?

A

the ratio of a material’s mass to its volume

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6
Q

how many states of matter are there?

A

three

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7
Q

what are the states of matter?

A

solid, liquid, and gas

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8
Q

how do states of matter change?

A

by adding or removing heat

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9
Q

what is melting point?

A

the temperature at which a solid changes to a liquid

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10
Q

what is boiling point?

A

the temperature at which a liquid changes to a gas

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11
Q

what is the melting point for water?

A

0°C

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12
Q

what is the boiling point for water?

A

100°C

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13
Q

what is conductivity?

A

describes how easily electricity or heat can move through a material

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14
Q

what is kinetic energy?

A

the energy of movement

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15
Q

describe the particles of a solid

A

particles in a solid are packed so tightly that they can only vibrate

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16
Q

describe the particles of a liquid

A

particles of a liquid are farther apart and can slip and slide past each other

17
Q

describe the particles of a gas

A

particles of a gas are very far apart and move around freely and quickly

18
Q

what are the main points of the kinetic molecular theory?

A
  • all matter is made up of very small particles
  • there is empty space between particles
  • particles are constantly moving. In liquids and gases, the particles are colliding with each other
  • energy makes particles move
19
Q

oxygen and gold are examples of ______.

A

elements

20
Q

what are the 6 changes of state?

A

melting, evaporation, deposition, solidification, sublimation, condensation

21
Q

what is removed from gaseous gold to cause it to change to a liquid?

A

Heat

22
Q

What changes of state occurs when you turn a gas into a liquid?

A

Condensation

23
Q

What changes of state occurs when liquid turns into solid?

A

Solidification

24
Q

What is added to a solid gold to change it to a liquid?

A

Heat

25
Q

What happens to the temperature as solid gold turns to a liquid?

A

It increases

26
Q

Describe the change in the kinetic energy as the temperature increases?

A

The kinetic energy increases

27
Q

what is condensation?

A

the change of state from a gas to a liquid

28
Q

what is solidification/ freezing?

A

the change of state from a liquid to a solid

29
Q

what is sublimation?

A

the change of state from a solid to a gas

30
Q

what is evaporation?

A

the change of state from a liquid to a gas

31
Q

what is deposition?

A

the change of state from a gas to a solid

32
Q

what is melting?

A

the change of state from a solid to a liquid

science 9 (8 decks)

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