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WorksheetsScience revision
Total questions: 23
Worksheet time: 22mins
What is a rectilinear propagation of light?
What are the characteristics of a camel?
Our skull is made of ________ bony plates
24
28
27
22
What kind of mirror is used in a periscope?
Skeleton of human body is made up of
Cartilage
Bones
Both cartilage and bones
None of the above
Hip joint is
Hinge joint
Pivotal joint
Fixed joint
Ball and socket joint
Which of the following are the functions of the skeleton
Gives support to the body
Protects inner organs
Does not give shape to the body
All of the above
When the Sun is behind you, your shadow is ...
behind you
in front of you
at the side of you
not there
When an object moves closer to a light source, its shadow...
Gets smaller
Gets bigger
Changes shape
Stays the same size
Why do shadows made by the Sun move throughout the day?
Because the weather changes
Because someone moves the objects
Because the sun appears to move across the sky
Shadows are longest during _______.
morning and evening
noon
night
Where will the tree's shadow be?
A
B
C
D
We can see things around us because of light reflecting off the object and into our eyes?
True
False
What is acclimatization?
Winter sleep of some organisms
The small changes that take place in the body of an organism over a short period, to overcome small problems arising due to changes in its surroundings
Feature that helps an organism to survive in a particular type of habitat
A_has several adaptations to help it survive in a desert
Camel
Donkey
Cat
What are examples of rain forest habitat?
Giraffes, deer, lions
Monkeys, snakes , tiger
None
Which of the following is an irreversible change?
Combing hair
Crushing a can
Burning paper
Dissolving salt in water
Which of the following is reversible change?
Bending a wire
Making tea
Rusting of iron
Sprouting a seed
Which of the following is a chemical change?
Harvesting cotton fibres
powdering jeera seeds
Making cheese from milk.
Cutting an apple
Pick change that can be reversed from the following
Cutting of treee
Melting of ghee
burning of candle
blooming of flower
An iron is heated. Which of the following statement about is incorrect
The ring expand
The ring almost comes to the same size on cooling
The change in this case is reversed
The ring change its shape and the change cannot be reversed
