للتواصل
(1)
In simple electric cell, …………………….. energy changes into ……………………. energy
(2)
In the dynamo, …………………….. energy changes into ……………………… energy.
(3)
Friction changes …………………….. energy into ………………………… energy
(4)
In solar heater, …………………… energy is converted into ………………………… energy.
(5)
In electric heater, …………………… energy is converted into ………………………… energy
(6)
In the car engine, the ………..………. energy stored in the fuel changes into …………………. energy at first.
(7)
In photosynthesis process, …………………………. energy changes into ……………………….. energy.
(8)
The energy stored in the food is ………………, while the …………….. energy is produced from the dry cell
(9)
Heat is transferred in three methods which are ……………………….., ………………..……… and …………………….
(10)
Heat transfers through solids by ……………….., while through liquids by ……………………..
(11)
The heat of the sun reaches Earth’s surface by ……………………, while the heat is transferred through iron by …………………….
(12)
Heat transfers through oil by ……………….., while it transfers from the Sun to the Earth by …………………
(13)
Heat transfers through the electric heater by ………………………… and ……………………….
(14)
.……………………….. and ……………………………… are used in classification of plants.
(15)
Plants carry large-sized leaves such as ………..…. and some has small-sized leaves such as ……………
(16)
Arthropods are classified according to the number of …………………….. into three groups are called ………………………., …………………………. and …………………………
(17)
.Insects have ………. pairs of legs as ……….., while arachnids have ….. pairs of jointed legs as …………
(18)
Plants reproduce by ……………………………. or ……………………………
(19)
.…………………………… and …………………………….. are examples of micro-organisms.
(20)
.…………………………… and …………………………….. are examples of insectivorous plants.
(21)
From the toothless mammals are …………………………… and ………………………….
(22)
The number of incisors pairs in the upper jaw of jerboa is ……………………, while in the upper jaw of rabbit is ……………………..
(23)
………………….…….. is from plants that reproduce by the formation of spores whereas ………………. is from the plants that produce seeds inside cones
(24)
The teeth of …………………. extend outwards to capture insects, while ………………… is from the insects..
(25)
…………………. has an internal support, while …………………… has an external support
(26)
The rat belongs to ……………………….., while the rabbit belongs to ………………………..
(27)
…………………………and …………………………… belongs to animals with no body support (soft body)
(28)
The cockroach belongs to …………………………, while the scorpion belongs to …………………………..
(29)
.The front limbs of dolphins are modified into ………………….. to take the role of ……………………
(30)
0.The front limbs of bats are modified into ……………………… to take the role of ……………………….
(31)
.Horse limbs end in ………………………. to run over a rocky soil, whereas camels limbs end in …………………. to walk on hot sandy soil
(32)
.…………………………. is from animals that tend to hibernate in winter.
(33)
.Hawks have …………….. beaks to tear the prey, whereas ducks have ……………… beaks to filter food from water
(34)
Jerboa undergoes ………………….. to overcome the …………………. in temperature.
(35)
The activity of bats during night is considered …………………………… adaptation
(36)
Secretion of sweat in humans is a ………………………. adaptation.
