5 TH

We can use copper to make........

•  a. handles of cooking pans.

• b. body of cooking pans.

•  c. gloves.

•  d. tires.

Steel is used in making hammers, because it is............

• 
  

  a. flexible.

  
  

• b. smooth.

• c. hard.

• d. transparent.

Glass is transparent, so it can be used in making ................................

• a. eyeglasses.

•  b. tires.

• c. screwdrivers.

• d. gloves.

When you put a lighting match close to helium gas, it will............

• a. burn.

• b. not burn.

• c. form fire.

• d. freeze.

All the following are from the physical properties of copper, except that...........

• a. it is good conductor of electricity.

  
  

• b. it is good conductor of heat.

• c. it can be stretched into thin wires.

• d. it is lighter than air.

Rubber is used to make all the following, except..........

• a. athletic shoes.

  
  

• b. gloves.

• c. tires.

• d. windows.

From the chemical properties of helium is that it is not flammable.

• T

• F

Helium is a gas that can be used safely, because it is poisonous. 

• T

• F

Copper is used in making cooking pans because copper is a good conductor of electricity.

• T

• F

Handles of cooking pans are made of wood or plastic because they are bad conductors of heat.

• T

• F