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grade 7 science > Matter > Flashcards

Matter Flashcards

1
Q

What is matter?

A

something that has a mass and takes up space (it has YEET in it)

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2
Q

What is matter made of?

a) tiny stuff called atoms
b) energy
c) EVERYTHING!

A

a

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3
Q

what are atoms made out of?

a) electrons,protons,neutrons
b) protons,electrons,nucleus,nutron
c) neutrons,nucleus
d) protons,electrons

A

b

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4
Q

How many hydrogens are there in H2O?

a) one
b) two
c) three

A

b

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5
Q

what part of an atom has an negative charge?

a) electrons
b) neutrons
c) protons

A

a

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6
Q

what do we have to change to make a solid become a liquid

A

the temperature

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7
Q

true or false

when a liquid becomes a solid it is called freezing

A

true

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8
Q

what is it called when a gaz becomes a solid

A

deposition

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9
Q

what do call it when two atoms bond together

A

a compound

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10
Q

what dose energy give to matter

A

the ability to change

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11
Q

true or false

there is 16 oxygens in co2

A

false

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12
Q

what are the three states of matter

A

Gaz,Liquid,Solid

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13
Q

what happens when two atoms bond together

A

they create an molecule

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14
Q

what is it called when a liquid becomes a gaz

A

evaporation

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15
Q

what is it called when a gaz becomes a liquid

A

condensation

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16
Q

what is it called when a solid becomes a gaz

A

deposition

17
Q

true or false

a proton is a particle with a positive charge

A

true

18
Q

a neutron is

a) a particle with a negative charge
b) a particle with a positive charge
c) a particle with no charge at all

A

c

19
Q

atoms are made up of

a) sub-atomic particles
b) co2
c) a compound

A

a

20
Q

how many carbon and hydrogen are there in ch4

A

one carbon and four hydrogen.

21
Q

what is daltons model

A

atoms are represented by balls and molecules by groups of balls. YEET

22
Q

what is NH3

A

ammonia

23
Q

whats an ozone molecule

A

O3

24
Q

where is ozone

A

in the stratosphere

25
Q

what is co2

A

carbon dioxide.

26
Q

where is co2

A

in the air we breathe

grade 7 science (3 decks)

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