Oxford Discover 3 unit 13

A ------------- is a type of a screw.

• doorknob

• light bulb

• lever

A/An ---------------- is a lever that pulls out nails.

• hammer

• wheel and axle

• axe

She used a --------------- to push the cart into the building.

• stairs

• screw

• ramp

He uses a/an ---------------- to chop wood.

• doorknob

• axe

• hammer

------------ are used for transportation.

• wheels

• axe

• ramp

A seesaw in a playground is an example of a -------------.

• ramp

• lever

• light bulb

A wheelchair uses --------------- to help it move.

• hammer

• wheels and axle

• lever

A jar lid is an example of a --------------.

• lever

• screw

• ramp

A hammer is a ------------- that pulls out nails.

• ramp

• screw

• lever

---------- were used by the Egyptians to build the pyramids.

• Levers

• Ramps

• Screws