WPS Sorting into groups

Which of the following materials is not lustrous?

• Gold

• Silver

• Wood

• Diamond

Which type of the following materials is used for making the front glass (wind screen) of a car?

• Transparent

• Translucent

• Opaque

• None of the above

An oiled paper act as a _______ material.

• Transparent

• Translucent

• Hard

• Opaque

Take two samples, one is oil and other is water. Mix the two. You observe that

• They are soluble.

• Oil floats on water

• Water floats on oil

• None of the above

Which one of the following dissolves in water

• Wood

• Rock

• Sugar

• Plastic

Which of the following substance is opaque?

• Wood

• Glass container

• Oily paper

• Water

Which of the following does not float on water?

• Feather

• Paper

• Coconut oil

• Stone

Find the odd one?

• Sugar

• Salt

• Glucose

• Sand

Which of the following statements is not true?

• Materials are grouped for convenience.

• Materials are grouped to study their properties.

• Materials are grouped for fun.

• Materials are grouped according to their uses.

select the objects which is lustrous-

• steel spoon

• cotton shirt

• plastic toy

• wood