Simple and complex machines

2. MACHINES

5. A screw is used to...
fasten two things.
drill holes.

6. A wedge is used...
To separate portions of
an object.
To lift something.
To hold an object in
order not to move.

7. An inclined plane helps us to move heavy objects
up and down heights.

8. A lever is used to lift or move something heavy.

9. A pulley is used to lift or low heavy objects.

10. A wheel and an axle are used for many things.

11. When you put simple machines together,
you get a complex machine.