問題一覧
1
write 2 foods particular to vitamin C
papa lime
2
what are the 3 soil types?
top soil suhb soil bed rock
3
select the 2 parts in the digestive system
oesophagus pharynx
4
write the instrument that not related to vibration of strings
flute
5
what is the tissue transport water to the plant
xylem tissue
6
what is the temperature range short in the clinical thermometer?
( 35c - 43c )
7
what are the soil organisms ?
bacteria fungi
8
what is soil erosion ?
The removal of the top soil layer due to water,wind or animals in certain location
9
write 2 examples to heat insulators
plastic cloth
10
write the 2 applications of conventional currents
Sea breeze land breeze
11
write the instruments respectively to the, strings / bars / membranes/ air column
guitar, organ, base drum, trumpet
12
what are the mediums of sound
solid, liquid, gas
13
what is the shoot system of a plant?
the upper part of the plant
14
tell a tissue in stomach
blood tissue
15
In which layer is the ozone situated
in stratosphere
16
what is the coldest layer in Atmosphere ?
mesosphere
17
what are the parts of the earth
crust,mantle,core
18
what is the present of the air in troposphere
75
19
write 2 ways of air polluting
destroying forests the carbon monoxide poison in factories
20
what are the acids can seen in the laboratory
hydrochloride acid sulphuric acid
21
write 3 vertebrates
Sea gull fish turtle
22
write 2 streamline shaped animals
fish bird
23
write 2 streamline shaped animals
fish bird
24
divide to the separate columns salviniya,shoe,coconut
nonflower flower parallel venation
25
an external part of a flower
stigma
26
plant bear vegetative propagation
akkapana begonia
27
what is this diagram ?
an androecium
28
who find the static electricity first?
William gilbert
29
what are the multiples of these images numbers formed 3 , 5 , 11
90 60 30
30
which letter turns when it there infront a plane mirror
b
31
what is this image ?
penumbra
32
what is this image ?
electron microscope
33
what is this ? where it is located ?
San Andrea's fault in North america
34
what is the main parts of the plants
shoot system root system
35
what is this root type ?
prop roots
36
what are the plants with the roots os mimosa
beans winged beans
37
write 3 parts of a leave
leaf margin leaf base leaf midrib
38
complete the other part by choosing, milk , butter , coconut are --------------------------
lipids
39
what is the basic functional and structural unit of the life
cell
40
what is the international unit of measuring force?
Newton (N)
41
is this sentence belong to pull or push hitting from a ball
push
42
what is the diseases caused by lack of vitamin A and vitamin D respectively
bitos spots rickets
43
what is this ?
sandstone
44
what made undergoing of granite,igneous
gneiss and metamorphism
45
what is not a mineral
conglomerate
46
what are the areas can found the mica and kaolin
wariyapola and mitiyagoda
47
who named the mineral Ekanite
scientist F.L.D. Ekanayake
48
what is this soil type ?
loamy soil
49
what is this scale type ?
farenhite scale
50
what is this ?
mica