2. Hosted by The Second Grade

3. 100 200 400 300 400 Simple Machines PulleysLeversScrews 300 200 400 200 100 500 100

4. Row 1, Col 1 This simple machine has a rope around a wheel and axle and is used to raise and lower things. What is a pulley?

5. 1,2 This object needs a pulley to raise it so the wind can catch it to make a boat move. What is a sail?

6. 1,3 This object is a lever that needs the same weight on each end to make it fun to use. What is a see saw?

7. 1,4 This object uses a screw to make holes in wood or metal. What is a drill?

8. 2,1 This is a slanted, flat surface that is used to move things to a higher place instead of lifting them. What is an inclined plane?

9. 2,2 This object uses a pulley to raise it outside our school to show our national pride. What is a flag?

10. 2,3 This object uses a lever to remove things from wood. What is a hammer?

11. 2,4 This object has a screw that is used to keep its top in place. What is a jar lid?

12. 3,1 This simple machine is made from an inclined plane that is wrapped around a pole. It is used to keep things together. What is a screw?

13. 3,2 This object uses a pulley to lift very heavy objects to very high places. You may see these around construction sites. What is a crane?

14. 3,3 This object uses two levers that work together to open food that has a shell. What is a nut cracker?

15. 3,4 This object has a screw at one end where it connects to a faucet. It allows water to pass from the faucet through the object. What is a hose?

16. 4,1 This simple machine is made from two inclined planes. It is used to split or separate Things. What is a wedge?

17. 4,2 This object needs a pulley to help lift a bucket full of water from deep in the ground. What is a water well?

18. 4,3 This lever helps to move a boat through the water. What is an oar?

19. 4,4 This object uses a screw to hold objects in place when sawing, bending or hammering What is a vise?

20. 5,1 This simple machine is made of two parts that work together to roll objects. What is a wheel and axle?

21. 5,2 This object uses a pulley to move a line making it possible to hang objects to dry from a window. What is a clothes line?

22. 5,3 This object uses a lever compare the weight of objects. What is a balance scale?

23. 5,4 This air screw is used to help some kinds of airplanes fly. What is a propeller?