Inventions and Simple Machines

This type of simple machine uses a wheel to help lift objects up

• wedge
• lever
• pulley
• screw

Something you want to do

• goal

• solution

• material

This simple machine allowed Elijah to lift a heavy rock.

• wedge
• lever
• screw
• inclined plane

Which technology do doctors use to see inside sick people to help them get better?

• glasses

• lightbulb

• television

• x-ray

All simple machines help make work _________.

• harder
• smaller
• lighter
• easier

This simple machine helps people move more easily

• lever
• wedge
• wheel and axle
• screw

This simple machine helps force objects apart.

• wedge
• lever
• pulley
• inclined plane

To make something for the first time.

• invent

• technology

You need to move a heavy box from the floor to a low shelf. You have a board. What simple tool could you make to move the box?

• a pulley

• a wedge

• an inclined plane

• a screw

Use of science to solve problems.

• invent

• technology