Sorting Materials

Which of these objects is made up of wood ?

• eraser

• bat

• both

Materials that have lustre are usually __________

• substances

• metals

• non-metals

Materials which can be compressed easily are known as ______

• soft

• lustrous

• hard

Which of the following materials is hard ?

• cotton

• iron

• sponge

The substances which mix with water are known as _______

• soluble

• non-soluble

• solution

__________ gas dissolves in water.

• oxygen

• nitrogen

• methane

___________ will float in water.

• iron nail

• plastic ball

• book

The materials through which object can be seen but not clearly is known as ___________

• transparent

• translucent

• opaque

_________ is an opaque object

• glass door

• wall

• spectacles

Every object is made up of one or more _______

• materials

• plastic

• wood