Grade 7 Physical Properties

What is this material: inorganic solid material that is usually transparent or translucent as well as hard, brittle, and impervious to the natural elements?

• Metals

• Ceramics

• Glass

• Plastic

• Fibers

What is this material: solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity?

• Metals

• Ceramics

• Glass

• Plastic

• Fibers

What is flexibility?

• ability of an object to bend without breaking and return to its original size and shape

  after bending

• ability to withstand scratches/cut.

• ability to support a heavy load without breaking or tearing.

• can be used to predict the object float or sink

What is strength?

• ability of an object to bend without breaking and eturn to its original size and shape

  after bending

• ability to withstand scratches/cut.

• ability to support a heavy load without breaking or tearing.

• can be used to predict the object float or sink

temperature which solid changes to liquid is called

• melting point

• boiling point

• cold temperature

• hot temperature

boiling point is temperature where liquid changes to .....

• solid

• gas

• another lquid

Melting point of ice is ....

• 0 ^oC

• 100 ^oC

• 25 ^oC

• • -100 ^oC

Boiling point of water is ....

• 0 ^oC

• 100 ^oC

• 25 ^oC

• • -100 ^oC

An object that can transfer heat very well is called ...

• Thermal conductor

• Thermal insulator

• Electrical conductor

• Electrical insulator

An object that can not transfer electricity very well is called ...

• Thermal conductor

• Thermal insulator

• Electrical conductor

• Electrical insulator