Glass is a transparent material used in making eye glass
True
Flase
Habitat loss is one of the main causes of extinction
False
The particles are packed tightly with each other is .............
water
oxygend
iron
When a drought occurs in a lake, it causes........... in ecosystem
balance
imbalance
model
When ice .........it will change from solid state to liquid one.
boils
melts
Iron rust and burning reactions are from ......... change
physical
natural
chemical
Decomposers haven not a role in the ecosystem
The transport system of plant does the same function of circulatory system in human
We can measure the length of classroom by using ..............
kilogram
measuring tape
Lion is from ...............
producers
meat eaters
decomposers
grass eaters
The plants make their own food by respiration
............... is from nonliving part of ecosystem.
fungi
plant
grasshopper
soil
The roof of desert home is similar to rainforest home
The measuring unit of volume............
kg
cm
gram
cm3
........... transports the glucose from the leaves to other parts of plants
bacteria and fungi
stems
Phloem
The atmosphere is a mixture of many gases
Form the food chain by using the following organisms:
a- small fish b- seabirds c-bacteria d- micro-organisms floating on the surface of the sea.
micro-organisms floating on the surface of the sea - small fish - bacteria - seabirds
micro-organisms floating on the surface of the sea - small fish - seabirds - bacteria
bacteria-micro-organisms floating on the surface of the sea - small fish - seabirds
........One example of decomposers is
seabirds
small fish
The ........... get the energy from sunlight
consumers
The measuring unit of mass is............
liter
ml
The matter changes from one state to other by increasing or decreasing of temperature
false
From an example of matter that attract to magnet is .............
plastic
wood
cork
The food chain always starts with ...............
predators
Photosynthesis process takes place inside .............
roots
leaves
flowers