sorting materials into groups quiz 1

The advantage of classification is

• sorting of similar and dissimilar things

• identify and locate things conveniently

• easy and meaningful study

• All of these

The external look of an object is called

• Hardness

• Appearance

• Solublity

• Transparence

Which of the following material is dull in appearance?

• Metallic chain

• Silk

• Wood

• Steel utensils

Which of the following is shiny in appearance?

• paper

• cotton

• chalk

• Metallic chain

Which of the following is the hardest substance known?

• wood

• iron

• Diamond

• Stone

Choose the soft substance out of the following?

• Cotton

• glass

• sponge

• both a and c

Substance that are used to make cutting tools are

• Metals

• Stones

• Diamond

• All of them

Which of the following substance is usually taken as standard to check if different materials are not?

• water

• milk

• oil

• sulphuric acid

Which of the following is insoluble in water?

• chalk powder

• sugar

• vinegar

• salt

Which of the following substances are soluble in water?

• Vinegar

• Lime juice

• Salt

• All of them