Simple Machines make work easier!

Have you seen simple machines in real life?

I bet you have!

Let's look at some: (question #1 is for picture #1, and so on...)

          

1. What are those round things? Why do we have them on cars?

2. What is that thing splitting the log?  What does it do?

3. How does this thing work? What happens when you're on it?

4. What's the difference between the one on the left and the other two? What are they used for?

5. How is this used? Why do we use them?

6. What is this guy doing? What's he trying to do?

 Remember: 

SIMPLE MACHINES MAKE WORK EASIER!