grade 6 , con 5 , lesson 6

To make clothes, we can use...........

• steel.

• concrete.

• rocks.

• flexible fabric.

Plastic...........

• is a liquid material.

• burns easily.

• is originated from petroleum.

• is a gaseous material.

To make bridges we can use............

• flexible fabric.

• concrete.

• smart clothes.

• glass.

Concrete................

• becomes liquid after it dries.

• consists of rock, sand and water.

• controls your body temperature.

• is originated from petroleum.

All the following are properties of petroleum, except...........

• it is a liquid material.

• it often resists burning.

• it burns easily.

• it is the original material of plastic.

Shrink-wrap is created when we..........

• add heat to steel.

• cooling glass.

• cooling steel.

• add heat to plastic.

All the following materials are liquid materials, except...........

• petroleum.

• glass before cooling.

• plastic.

• concrete before drying.

All the following are properties of smart clothes, except they............

• control your body temperature.

• are made of concrete.

• light up in the dark.

• keep themselves clean.

Smart clothes control your body..........

• mass.

• volume.

• temperature.

• structure.

Plastic often resists burning

• True

• False