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science > Science exam S1 y8 > Flashcards

Science exam S1 y8 Flashcards

(76 cards)

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1
Q

Chemists use symbols to identify each element. They use…

A

1-2 letters to show the symbol

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2
Q

What element is the symbol of K

A

Potassium

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3
Q

Chloroplasts are found in

A

plants above the ground

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4
Q

cells are the building blocks of….

A

Plants and animals

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5
Q

The law of energy

A

cannot be created or destroyed

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6
Q

non metals have…

A

-low = lustre
-no = electrical conductivity
-low = density
-low boiling point

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7
Q

Metalloids have…

A
  • moderately high = lustre
  • low = electrical conductivity
  • medium = density
  • very high = boiling point
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8
Q

Metals have…

A
  • high = lustre
  • high = electrical conductivity
    -high = density
  • high = boiling point
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9
Q

Atomic number is the same as..

A

The elections and protons

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10
Q

Cell membrane helps to…

A

protect the cell

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11
Q

Cell wall

A

Provides support

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12
Q

Cytoplasm

A

keeps organelles together

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13
Q

Vacuole

A

stores water

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14
Q

Nucleus

A

provides instructions

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15
Q

Chloroplast

A

produces energy

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16
Q

Mitochondria

A

Provides energy

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17
Q

The law of conservation energy is…

A

Energy can not be destroyed or created

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18
Q

Heat is…

A

being hot

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19
Q

temperature is…

A

the intensity of heat in a substance

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20
Q

conduction is…

A

When the heat of the object transferes through to another objects through contact

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21
Q

convention is…

A

the process of tranferring heat through air or liquid currents

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22
Q

radiation is…

A

the flow of heat between objects that are not in contact with each other

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23
Q

Energy is…

A

The ability to do work or cause change

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24
Q

Kinetic energy is..

A

Moving energy

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25
light energy is
Anything with light
26
Sound energy is...
Anything that gives of noise
27
Gravitational potential energy is....
Anything above the ground
28
Elastic energy is....
Anything stretched
29
Chemical energy is...
Anything with stored energy
30
Independent variable is...
The one changed
31
Dependant variable is...
The thing your testing
32
Controlled variables.....
The things your keeping the same
33
H is..
hydrogen
34
Li is..
lithium
35
He is...
helium
36
Be is....
Beryllium
37
B is...
Boron
38
C is...
Carbon
39
N is...
nitrogen
40
O is.....
oxygen
41
F is...
fluorine
42
Ne is...
Neon
43
Na is...
sodium
44
Mg is...
magnesium
45
Al is....
aluminium
46
Si is...
silicon
47
P is....
phosphorus
48
S is...
sulfur
49
Cl is...
Chlorine
50
Ar is.....
Argon
51
K is...
potassium
52
Ca is...
Calcium
53
How do you work out the number of neutrons
Subtract the atomic number from the atomic mass Mass - Number ( round up and down the decimal points )
54
A generalized cell is....
basic cell strucures
55
A specialized cell includes....
A unique structure that allows it to carry through the body
56
Lustre meaning
A glow on rock
57
Melting point
A point where the metals change from solid - liquids
58
Boiling point
Where liquids become a vapor or gas
59
Electrical conductivity
how easily it allows electric current to flow though
60
Heat conductivity
The ability to conduct heat through it
61
Malleability
How easiy it can become formed into thin sheets of object
62
How is the periodic table organized
In order of increasing the atomic number
63
What does the eyepices lens do
magnifies the object
64
What does the iris diaphragm do
adjust brightness
65
What does the the light source do
Allows to see
66
What is the stage on a micro
platform to do procedure on
67
What does the coarse focus knob do
Sharpens the focus
68
What does the fine focus knob do
shines light through specimen
69
Name an animal specifed cell and the function
-red blood cell ( carries oxygen ) -muscle cell ( help movement ) -nerve cell ( Receives and sends messages through the body)
70
How are igneous rocks formed
Through cooling of the magma / lava
71
how are sedimentary rocks formed
through sediments under pressure
72
how are metimorfic rocks formed
heat and pressure of sedimentary rocks
73
How are sediments formed
Small rocks broken off during weathering and erosion
74
What's weathering
the breaking down or dissolving of rocks / minerals on the surface
75
what's erosion
the process in which minerals are worn away
76
How do you work out the atomic number
the atomic number is just the order number

science (2 decks)

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