revision Flashcards

to revise for the end of year (84 cards)

1
Q

What taste do acid have?

A

sour

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2
Q

What colour does litmus paper turn in an acid

A

red

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3
Q

What is an example of a strong acid?

A

Hydrochloric acid, sulphuric acid

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4
Q

what is an example of a weak acid in a food/drink?

A

citric acid in fruit juice

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5
Q

What is an example of a strong alkali?

A

washing powder, oven cleaner

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6
Q

What example of a weak alkali?

A

soap, baking powder

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7
Q

What is inhalation?

A

breathing in

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8
Q

When the diamphram relaxes, it..?

A

moves up and curves

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9
Q

Which muscles contract when you inhale?

A

intercoastals and diamphram

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10
Q

What happens to the space in your chest when you inhale?

A

It gets bigger

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11
Q

What is a drug?

A

A substance that changes the way the mind and the body work

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12
Q

What are medicine drugs?

A

Drugs that people take to help those suffering pain or diseases

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13
Q

What are recreational drugs?

A

Drugs taken for pleasure (either legal or some are illegal)

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14
Q

What is plasma?

A

The straw coloured liquid part of the blood.

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15
Q

Plasma carries nutrients and ….. …….. around the body?

A

waste products

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16
Q

What do blood cells carry round the body?

A

oxygen

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17
Q

What do white blood cells fight?

A

infection

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18
Q

Arteries always carry blood away or closer to the heart?

A

away

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19
Q

Veins always carry blood to or from the heart?

A

to the heart

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20
Q

Everything is made up of what? (atoms, elements or compounds)

A

atoms

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21
Q

What are atoms?

A

tiny particles that are far to small to see, even with a microscope!

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22
Q

What are some examples of legal drugs?

A

caffeine, alcohol, tobacco

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23
Q

What are some examples of illegal drugs?

A

Cocaine, cannabis, heroine

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24
Q

What are some examples of medicine drugs?

A

Paracetemol, calpol, ibiprofen

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25
Name two muscles
Bicep, tricep, hamstring
26
Name two bones
Skull, rib cage, ulna
27
Name two organ systems
digestive, reproductive, nervous, immune, circulatory
28
What is a tendon?
A tendon is a connective tissue that attaches a muscle to a bone
29
What is a ligament?
A ligament is a fibrous connective tissue that attaches bone to bone
30
What is a sprain?
A sprain is an injury to the ligaments around a joint
31
What is mass?
Mass is the amount of matter/stuff you are made from
32
What is weight?
Weight is the force of gravity pulling down your mass
33
Name 2 organs in plants
flower, stem, roots, leaves
34
What are the 7 life processes?
Movement, respiration, sensitivity, growth, reproduction, excretion, nutrition
35
What do we need our skeleton for? (begins with s)
It provides support for your body and holds your internal organs in place
36
What do we need our skeleton for? ( begins with p)
Protection: bones are very hard and strong so they can protect the vital organs from being damaged
37
What does the skull protect?
the brain
38
What does the rib cage protect?
The heart and lungs
39
What does the sternum protect?
The heart and lungs
40
What does the vertebral column protect?
The spinal cord
41
What do we need our skeleton for? ( begins with m)
Movement, the joints between bones allow our body to move freely
42
What do we need our skeleton for? ( begins with m..... b.... c....)
making blood cells, some bones are not completely solid, they have soft marrow bone in the middle of them. They produce red and white blood cells.
43
What is a mixture?
Two or more subtances 'jumbled 'together
44
What is a solute?
A solid that dissolves
45
What is a solvent?
A liquid that does the dissolving
46
What is a heart rate?
The number of times our heart beats in a minute
47
Is the heart pulse direct?
No
48
What is an independent variable?
What we need to change
49
What is a dependent variable?
What we measure
50
What is variation?
The difference between individuals within species
51
Variation can be c......... or disc.........
continuos or discontinuous
52
What are some types of variation?
Eye colour, length of arm, height, hair colour
53
Give examples of enviromental changes
temperature, light intensity, rainfall, wind
54
In winter what are the enviromental changes?
cold temperature, no leaves on trees, frozen lakes, snow, rain, least sunlight
55
In summer what are the enviromental changes?
most sunlight, hot temp, leaves on trees, flowers, sunny, thunderstorms
56
In spring what are the enviromental changes?
gradually more daylight, gets warmer, flowers bloom, rain, frost
57
In autumn what are the enviromental changes?
Less daylight, gets colder, leaves fall, frost, rain
58
What is hibernation?
The state of being asleep for winter
58
What are some methods that animals survive the cold?
Hibernation, changing colour, migration
59
What is migration?
The seasonal movement of organisms from one region to another
60
What is an advantage of migration
animals travel to areas with more food and better temperatures to survive
61
What is a disadvantage of migration?
The journey can be long
62
What is a predator?
An animal that consumes (eats) other animals
63
What is the job of the lungs?
Gas exchange
64
Where does gas exchange take place?
The tiny air sacs in your lungs called aveoli
65
What is exhalation?
Breathing out
66
What is air made of?
nitrogen, oxygen, carbon dioxide, argon
67
What is the muscle at the bottom of your lungs?
The diaphram
68
Which force resists movement when two materials are in contact?
friction
69
What is blood moving around the body called?
blood circulation
70
What makes blood move around the body?
The heart pumps blood around the body
71
Why does blood need to keep moving around the body?
to transport oxygen and nutrients around the body
72
Do red blood cells have a nucleus? Why?
Red blood cells have no nucleus so there is more space to carry oxygen
73
What is breathing?
Breathing is the process of taking in of oxygen and giving out carbon dioxide.
74
What is ventailation?
the movement of air into and out of the lungs | they are used to supply oxygen to the body and remove carbon dioxide
75
What is resperation?
releasion of oxegen and gluctose in the body
76
What is the job of the arteries?
The carry blood away from the heart to capillaries
77
What are capillaries?
tiny blood vessels connecting arteries and veins
78
What is ventillation?
the movement of air into and out of the lungs
79
What are depressants?
They increase your reaction time - impulses carried slower. E.g alcohol
80
How many bones make up the skull?
22 bones
81
What is the cartilage?
The tissue on the ends of the bones
82
What is a flexible joint?
Two or more bones meeting that can be moved
83
What is a breathing rate?
The number of times you inhale and exhale in a minute