Font size
Worksheetsquiz concept 1 grade 4
Total questions: 22
Worksheet time: 22mins
From the negative effects of human activities on the human health are............
Lung damage and asthma
Heart problem and wounds
Athma and wounds
Lung damage and lungs
Air enters and exits the human body through (a) system.
Correct the word between parentheses:Gills are unique (behavioral) adaptation that allow fish to breathe
under water.
(a)
Both of human and fish.......
Can breathe in water
Can breathe in air
Use carbon dioxide gas to breathe in
Use oxygen gas to breathe in
The organ that moves the food into the stomach is...........
Esophagus
Small intestine
Large intestine
Tongue
Give reason for:
Arctic fox has a thick fur coat.
Write the scientific term:
A tree that grows in southern African savannah and it has a sharp spines around its leaves
(a)
What happens if:
Water lily has narrow leaves instead of wide leaves
Write the scientific term:
Little air sacs surrounded by blood vessels in the respiratory system
(a)
During inhalation, the size of chest become narrow
True
False
Amphibians include frogs and salamanders
True
False
.........is a tube that allows air to pass into two lungs
Throat
Trachea
Nose
Diaphragm
The fur color of Arctic fox is ...............in winter but turns into .............in summer
(a)
Starred agama lizard use one of its eyes to search for food and the other one to look out for danger
True
False
Barbary fig keeps animals away like acacia tree by its .........
sharp spines
Poison
Smell
Long leaves
Pollution of an ecosystem can affect ........
Plants and animals only
Humans and plants only
Plants and animals only
Plants, animals and humans
Scientists try to save golden frogs from extinction
True
False
Correct the word between parentheses:
Fish can breathe only in (air)
(a)
Adaptation to store water is an important character for plants that live in dry desert environment
True
False
Give reason for:the inhaled air differs from exhaled air
A plant lives in salt water environment and it has a long roots to resist water waves
Acacia tree
Pine tree
Mangrove tree
Water lily
Amphibians absorb oxygen directly from water by their .................
Skin
gills
Lungs
Nose
