Effects brought by changes in matter

Among the three states of matter, solid substances are often used, however, they also undergo procedures that change them into their desired form and purpose. Which of the following substances can be changed through cutting, bending, hammering, and pressing?

• SAND

• SMOKE

• SODA

• TIN CAN

Which of the following materials CANNOT BE EASILY PRESSED with bare hands?

• PLASTIC BOTTLE

• CLAY DOUGH

• STUFF TOY

• BLOCK OF WOOD

Which of the following materials or substances CANNOT BE BENT ?

• GLASS

• CARBON DIOXIDE

• METAL PIPE

• WOODEN STCK

Which of the following condition is NOT caused by a temperature change?

• BAKING A BREAD

• FREEZING AN ICE CREAM

• SLICING A WATERMELON

• BURNING OF WOOD

Which of the following changes is NOT brought by mixed materials?

• TEA, SUGAR, MILK, PEARL = MILK TEA

• FLOUR, EGG, MILK = PANCAKE

• HAMMERING A PIECE OF ROCK

• SAND, WATER, CEMENT = CONCRETE GROUND

Materials and other substances are made to serve a particular purpose, however they may also cause harm if improperly used.

• TRUE

• FALSE

• MAYBE

• DON'T KNOW

Changes in materials are sometimes either caused by applying FORCE and TEMPERATURE?

• FALSE

• TRUE

• MAYBE

• DON'T KNOW

Human activities bring unexpected effects when materials and substances 

       are made and used up which eventually may cause problems 

       either health issues or damage to the environment.  Which is a good practice?

• Cutting off  trees to produce more papers without replanting.

• Buying and consuming of more household products instead of saving.

• Use insecticides or pesticides to terminate bugs or unwanted pests.

• Conserving in the use of basic commodities to minimize overusage of resources.

Which of the following changes is NOT a useful practice?

• Used plastic bottle turned into a plant pot

• Scratch papers turned into beads

• Crushed tin cans turned into a wheelchair

• Colllected garbage burnt into smoke

Which of the following is NOT a good practice as materials undergo changes?

• Repairing a broken chair

• Disposing damaged appliances

• Reusing old materials

• Recycling defective substances