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Science-Matter /Atoms > Matter Atoms > Flashcards

Matter Atoms Flashcards

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0
Q

What is mass?

A

Amount of matter that makes up an object

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1
Q

What is matter?

A

Anything that has mass and takes up space

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2
Q

What is volume?

A

Amount of space matter takes up

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3
Q

What model do scientist use today?

A

Electron cloud model

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4
Q

What are the two distinct regions in the electron cloud model?

A

The nucleus and the electron cloud

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5
Q

What is the nucleus composed of?

A

Protons and neutrons

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6
Q

What is a proton?

A

Particle that has a positive charge

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7
Q

What is a neutron?

A

A particle that has no charge

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8
Q

What is an electron?

A

A particle that has a negative charge

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9
Q

How do scientists develop ideas today versus in the 5th century

A

Today we observe, measure and experiment

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10
Q

What do the ancient Greeks think all made was made from?

A

Earth, fire, air and water

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11
Q

What are the four states of matter?

A

Solid,liquid, gas, plasma

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12
Q

What is a solid?

A

Has definite shape and volume

Particles are close together and move slowly

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13
Q

What is a liquid?

A

Has definite volume but no shape

Particles move fast and break through each other

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14
Q

What is a gas?

A

Has no definite shape or volume
Takes the shape of the container
Particles move very fast

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15
Q

What is plasma?

A

Has no definite shape or volume
Particles can conduct electricity
Found in lightning and fire/not common on earth

16
Q

How does temperature affect matter?

A

Temperature affects the force of attraction between particles

17
Q

What is the melting point?

A

Process in which a solid is heated to its melting point a becomes a liquid.

18
Q

What is the freezing point?

A

As liquids lose heat, the particles slow down. It can become a solid it it gets cold enough.

19
Q

What is the boiling point?

A

Water particles speed up when it is heated up to the boiling point. Water changes into a gas called water vapor.

20
Q

What is condensation?

A

A liquid formed when Water particles lose energy as they cool

21
Q

What is a physical change?

A

Size shape or state of a substance changes, but it’s propeties stay the same. Ex. Shredding paper

22
Q

What is a chemical change?

A

One or more substances change into completely new substances with different properties. Ex. Mixing water and concrete

Science-Matter /Atoms (1 decks)

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