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Science🔬 > Keywords > Flashcards

Keywords Flashcards

1
Q

Ultrasound

A

Sound that has an ultronic frequency

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2
Q

Mixtures

A

A mixture contains 2 or more different substances that are mingled together but are not chemically combined

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3
Q

Alkali metals

A

React with air and quickly loose their shine when it is exposed to the air

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4
Q

Alkaline metals

A

Any group of elements including:

  • Beryllium
  • calcium
  • magnesium
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5
Q

Elements

A

Are substances which cannot be split up into simpler substances by chemical means

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6
Q

H20

A

Water

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7
Q

C20

A

Carbon dioxide

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8
Q

Mg0

A

Magnesium oxide

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9
Q

Fes

A

Iron sulfrate

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10
Q

Compounds

A

Are formed when 2 or more atoms of different elements combine together chemically

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11
Q

Circulatory system

A

Consists of blood, the heart and blood vessels

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12
Q

What is the normal human body temperature

A

37 degrees

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13
Q

How many litres of blood does the average adult contain

A

5 litres

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14
Q

Plasma

A

Is the straw coloured liquid part of blood. It is responsible for the transport of heat

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15
Q

Red blood cells

A

Carries oxygen from the lungs to the body

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16
Q

White blood cells

A

Fight infection

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17
Q

Platelets

A

Tiny fragments that are responsible for blood clotting

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18
Q

What is sound

A

Sound is a form of energy
It is produced by vibrations
Echoes are reflected sound

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19
Q

What is the difference between the left atrium and the right atrium

A
  • the left ha thicker walls and pumps blood around the body

- the right just pumps blood to the lungs

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20
Q

A solvent

A

A substance that dissolves other materials to form a solution

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21
Q

A solute

A

A substance that dissolves in a solvent

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22
Q

A solution

A

A mixture of a solute and a solvent

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23
Q

An atom

A

Is the smallest particle of an element that still retains the properties of an element

24
Q

A molecule

A

Is the smallest particle of an element

25
A proton
Is a sub atomic particle
26
Neutron
A sub atomic particle found in the necleus and has no charge
27
Veins
Carry blood to the heart
28
Arteries
Carry blood away from the heart
29
Capillaries
Allows material t flow in and out of the blood
30
The heart
Pumps blood around the body
31
Heart disease is caused by
- smoking - not exercising - not eating healthy
32
The septum
A sheet of muscle that separates one side of the heart from another
33
The vena cava
Takes good to the right atrium
34
Pulmonary artery
Takes bood from the ventricle to the lungs
35
Respiration
The release of energy from foods
36
Word equation for aerobic respiration
Glucose ➕ oxygen ➡️ energy ➕ carbon dioxide ➕ water
37
Experiment to show there is more exhaled air in carbon dioxide that inhaled air
1) place an equal amount of limewater into two test tubes 2) suck air in through tube x 3) breath air out through tube y 4) repeat step 2 + 3 until limewater turns milky
38
Larynx (voice box)
Responsible for making sound
39
Rings of cartilage
Keeps air tubes open
40
Lungs
The breathing organ
41
Intercostal muscle
Cause the rib change to move up and down
42
Diaphragm
Sheet of muscle that moves up and down during breathing
43
Trachea (windpipe)
Allows air to pass in and out of the lungs
44
Bronchus
A tube wich cries air from the trachea to the lungs
45
Bronchioles
Thin tubes that carry air within the lungs
46
Alveoli
Thin air sacks covered in blood vessels
47
Gaseous exchange
Occurs when carbon dioxide in the lungs is replaced by oxygen in the alveoli by diffusion
48
Temperature
Is a measure of the hotness or coldness of an object
49
Heat
Is a form of energy and it can be converted into other forms of energy
50
Solids liquids and gases
Expand when heated and contract when cooled
51
Latent heat
Is the heat taken in when the substance is changing
52
Conduction
Is the method by which heat travels from particle to partcile through a solid
53
Convencation
Is the transfer of heat through a liquid or gas
54
Radiation
The transfer of heat from a hot object
55
A conducter
A substance which allows heat to flow through it easily
56
An insulator
A substance which does not allow heat to flow through it easily
57
A saturated solution
A solutions that no more can be added to it

Science🔬 (39 decks)

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