Worksheets7th Sem 1 Science MCQs Quiz
Total questions: 19
Worksheet time: 10mins
Cuscuta is an example of:
Autotroph
Parasite
Saprotroph
Host
The plant which traps and feeds on insects is:
Cuscuta
China Rose
Pitcher Plant
Rose
Fat is completely digested in the:
Stomach
Mouth
Small Intestine
Large Intestine
An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will:
Flow from iron ball to water
Not flow from iron ball to water or vice versa
Flow from water to iron ball
Increase the temperature of both
A wooden spoon is dipped in a cup of ice cream. Its other end:
Becomes cold by conduction
Becomes cold by convection
Becomes cold by radiation
Does not become cold
Stainless steel pans are usually provided with copper bottoms because:
Copper bottom makes the pan more durable
Such pans appear colorful
Copper is a better conductor of heat than stainless steel
Copper is easier to clean than stainless steel
Water from the undigested food is absorbed mainly in the:
Stomach
Foodpipe
Small Intestine
Large Intestine
Which part of the plant takes in carbon dioxide from the air for photosynthesis?
Root Hair
Stomata
Leaf Veins
Petals
Plants take carbon dioxide from the atmosphere mainly through their:
Roots
Stem
Flowers
Leaves
In plants, water is transported through:
Xylem
Phloem
Stomata
Root Hair
Water absorption through roots can be increased by keeping the plants:
In the shade
In dim light
Under the fan
Covered with a polythene bag
The gas we use in the kitchen is called liquefied petroleum gas (LPG). Choose the correct one:
Process A is a chemical change
Process B is a chemical change
Both A and B are chemical changes
None of these are chemical changes
Anaerobic bacteria digest animal waste and produce biogas. The biogas is then burnt as fuel. Choose the correct one:
Process A is a chemical change
Process B is a chemical change
Both processes A and B are chemical changes
None of these processes is a chemical change
No medium is required for transfer of heat by the process of:
Conduction
Convection
Radiation
None of these
A cold steel spoon is dipped in a cup of hot milk. Heat is transferred to its other end by the process of:
Conduction
Convection
Radiation
None of these
Clothes of (a) colours absorb more heat better than clothes of light colours.
Which of the following prevents rusting of iron?
Painting
Oiling
Galvanization
All of the above
Why does wearing multiple layers of clothing in winter keep us warmer than a single thick layer?
It traps more air
It allows air to pass through
It absorbs more heat
It reflects sunlight
Iron pipes coated with zinc do not get rusted easily.
True
False
