Science 7 Unit D Section 3 Review

What is one property of materials that helps determine their use in construction?

• Lustre

• Streak

• Softness

• Brittleness

Why is it important for materials to have strength in building structures?

• To make the structure look nice

• To make the structure heavier

• To allow easy movement

• To resist forces acting on the structure

Which material property allows a material to return to its original shape after being bent?

• Ductility

• Plasticity

• Brittleness

• Flexibility

What is an example of a material that has high resistance to heat?

• Cotton

• Wood

• Plastic

• Metal

Which of the following is NOT a consideration when choosing materials for a structure?

• Cost

• Availability

• Aesthetics

• Location

What type of force can cause deformation in a material?

• Magnetic

• Electronic

• Minimal Load

• Excessive load

When a material deforms permanently, it is said to be...

• Flexible

• Hard

• Ductile

• Deformed

What property of materials helps tall buildings bend in the wind without breaking?

• Hardness

• Brittleness

• Plasticity

• Flexibility

Which type of material property would be most important for a material used to make a raincoat?

• Hardness

• Plasticity

• Ductility

• Resistance to water

What is an example of a fastener that uses friction to hold materials together?

• Glue

• Tape

• Cement

• Screw