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15 questions
No substance in nature is 100 percent ___________
Pure
Mixture
Impure
None of these
Anything that has mass and occupies space is called_______
Material
Matter
Substance
None of these
Materials that allow light to pass through it is called____
Opaque
Translucent
Transparent
None of these
A special kind of shine present on natural materials or shine appears when they freshly cut or rubbed with sand paper is called___________
Non-lustre
Lustre
None of these
Common salt is ________ in water.
Insoluble
Soluble
Floats
Sink
A substance which is used in making objects is called __________
Matter
Material
Substance
All the above
Tea leaves are separated from tea by the process of,
Evaporation
Filtration
Sedimentation
Decantation
Diamond is a _____ material.
A mixture of salt and water can be separated by_________
Which of the combinations is the odd one out?
Ink and water
Milk and water
Oil and water
Lime juice and water
Mohan able to bend the rod because it is,
Light
Hard
Water proof
Flexible
Abhi bought an object. It is made of a hard material. It is fragile(easy to break) and allows light to pass through it . What can the object be?
Shoes
Mirror
Cricket bat
Fish tank
Which of the following is NOT a bad conductor of heat?
Wooden ruler
Plastic ruler
Iron ruler
All of these
Which of the following is NOT attracted by a magnet?
Iron
Nickel
Chalk
Cobalt
Door locks are made of metals. Which property of metals is made use of?
They are lustre
They are opaque
They are good conductors of heat
They are hard and strong.
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