Q.1.
Materials that are meant not to last are known as what?
Q.2.
A material with stiff physical properties will .......
Q.3.
Materials are affected by their surroundings. Many metals are ....... by air and water.
Q.4.
Many plastics become ....... with age.
Q.5.
A material with thermal physical properties will .......
Q.6.
What does 'ferrous' mean?
Q.7.
A transparent material is see-through. What is its opposite called?
Q.8.
A material with dense physical properties will ......
Q.9.
A material with strong physical properties will .......
Q.10.
Wood is ....... by insects and fungi.