Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Y8 Exam revision > Science > Flashcards

Science Flashcards

(100 cards)

Start Studying
1
Q

What two adjustments can be used to focus on the specimen?

A

Coarse and fine adjustment

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the 3 objectives? (name & x2…etc)

A

low power (x4), Medium power (x10), high power (x40)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What’s unicellular?

A

Organisms that only have one cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What’s multicellular?

A

Organisms that have more than one cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What’s Nucleus’s function?

A

controls the cell and contains the genetic material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where does nucleus appear?

A

plant and animal cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What’s cell membrane’s function?

A

controls the movement of substances in and out of the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Where does cell membrane appear?

A

plant and animal cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What’s cell wall’s function?

A

provides support to the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What’s mitochondrion’s function?

A

cellular respiration - releasing energy from glucose using oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Where is mitochondrion found?

A

plant and animal cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What’s cytoplasm’s function?

A

site of chemical reactions and where the other organelles are found

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Where’s cytoplasm found?

A

plant and animal cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What’s the vacuole’s function?

A

photosynthesis - contain chlorophyll which absorbs sunlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Where is vacuole found?

A

plant cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What’s chloroplast’s function?

A

contain cell sap - maintain the shape of the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Where is chloroplast found?

A

plant cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What parts are in the plant cell?

A

nucleus, mitochondria, cell membrane, cytoplasm, cell wall, vacuole and chloroplast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What parts are in the animal cell?

A

nucleus, mitochondria, cell membrane, cytoplasm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What’s the chemical reaction for respiration?

A

glucose + oxygen = carbon dioxide + water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What’s respiration?

A

The chemical process in which sugar (glucose) is broken down to release energy using oxygen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What are two types of cell diversion?

A

Mitosis and Meosis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

What is mitosis?

A

one cell dividing into two identical cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What is meiosis?

A

one cell split into 4, doesn’t have full genes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Why is cell division needed?
growth, repair and reproduction
26
What do cells make up?
tissues
27
What do tissues make up?
organs
28
What do organs make up?
organ systems
29
What do plants give us?
food, oxygen and life on earth
30
(get the flower diagram out!!!!)
it's in Y8 science folder T4
31
What's the petal's function?
have bright colours to attract birds and incests
32
What's the stigma's function?
a sticky pad the pollens land on
33
What's the style's function?
to hold up the stigma
34
What's the ovary's function
protects the ovules
35
What's the ovule's function
contain the female sex cells
36
What's the anther's function?
where the pollen is proudcted
37
What's the filament's function?
supports the anther in male part of the flower
38
What's pollen?
a very small seed formed in male part
39
What's the stamen's function?
a part that produces the pollen
40
What two organ systems does a plant have?
root system and shoot system
41
What organs does a plant have?
roots, stems, leaves
42
What's the function of the stem?
grow leaves/flowers, photosynthesis, food storage
43
What's the function of leaves?
photosynthesis, save/transport water, water & gas exchange
44
What's the function of flower?
reproduction organ, attract incests/birds
45
What's the function of roots?
stick to the ground, store sugar & protein, dissolve minerals, give water to parts above
46
What's the importance of root hair?
can stretch further away to find water
47
What's xylem's function?
continuous tubes that transport water from roots up to the leaves
48
What's phloem's function?
transport nutrients up and down to all the cells in a plant
49
What's the role of the respiratory system?
to take in oxygen and remove carbon dioxide
50
How many chambers does the heart have?
4
51
What are the 4 chambers of the heart?
right & left atrium, right & left ventricle
52
What's the role of the circulatory system?
transport blood, energy and nutrients all around the body
53
Where and what is deoxygenated blood?
deoxygenated blood is blood with low oxygen - happens in the right atrium
54
Where and what is oxygenated blood?
oxygenated blood is blood with oxygen - happens in the left atrium
55
Is the atrium on the top or the bottom?
top
56
What does the stomach do to the food?
digest the food, turn food into liquid
57
Why is the small intestine so long and folded?
to increase surface area
58
What is absorbed in the large intestine
water, salt
59
Why is food moved into blood?
so can be delivered to all cells in the body
60
What's the role of the excretory system?
remove waste
61
What does a kidney do?
filter blood, get rid of water, balance the salt & water
62
What are the 4 main roles of the skeleton?
to support, protect, movement and production of blood cells
63
How do muscles move bones?
they contracts - allowing movement
64
Is it true muscles can both expand and contract?
don't expand but contract
65
What's ligament?
tissues that attach bone to bones
66
What's tendon?
tissues that attach bone to muscles
67
What is weathering?
breaking down of rocks over time
68
What is erosion?
the movement of earthen material by natural force
69
How are weathering & erosion different?
weathering is breaking down rocks, erosion is moving rocks to another place
70
What are the 3 types of weathering
Physical, chemical and biological
71
What are the 3 types of rock?
sedimentary, igneous, metaphoric
72
What are the 3 types of sedimentary rock?
Clastic, chemical, biogical
73
What are some sedimentary rocks?
shale, sandstone, coal
74
What does stratified mean?
have layers (that can break off easily)
75
What does non-stratified mean?
have no layers
76
Is coal a mineral?
NO!!!!!
77
How do sedimentary rocks form?
form in layers - sediments end up in rivers, settle, layers pile up and turn into rocks by presssure
78
In what kind of environment would sedimentary rocks form?
lakes, slow-moving water, bogs...
79
Are the layers on the top the youngest?
Yes
80
What are fossils?
A trace of past lie preserved in rocks
81
What are the 3 types of volcanoes?
cinder (have a hole on the top), shield, composite
82
What's the difference between lava and magma
Lava is above the surface/volcano, magma is below the surface/volcano
83
What are the two types of igneous rocks?
extrusive and intrusive
84
What's the difference between extrusive and intrusive?
extrusive is cooled under the surface of the volcano - has crystals, intrusive is cooled above the surface - very little or none crystal
85
What does felsic mean?
light coloured
86
What does mafic mean?
dark coloured
87
Where does hot stop form?
where there is hot mantle pushing up through the crust
88
What forms if the hot spot is under an ocean
a chain of islands
89
What does 'Ma' mean?
Million years
90
What are metamorphic rocks?
rocks that has been changed by heat and pressure
91
What are two types of metamorphic rocks?
foliated and non-foliated
92
What's the difference between foliated and non-foliated?
foliated have layers/bands and non-foliated don't have layers/bands
93
(Go look at rock cycle!!!!)
memorise the rock cycle!!!
94
What should the hypothesis & aim have?
prediction (independent variable)
95
What's the independent variable measuring?
the thing you are going to change
96
What's the dependent variable measuring?
the thing you're measuring
97
What's the control variable measuring?
the things that you're keeping the same
98
How to check validity?
it is kept controlled? is it testing what needs to be tested? does it have a control group (the normal condition)?
99
How to check reliability?
does it have repeats? are the results similar?
100
How to check accuracy?
does it use appropriate equipment? is it close to what's expected?

Y8 Exam revision (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions