Across
- 1. I was invented over 5000 years ago and fitted to carts, which made moving objects around much easier.
- 4. we should not put our fingers or sharp objects in these electrical outlets
- 5. a liquid we should keep away from things that use electricity
- 6. a wedge-type of simple machine that we use to cut paper in class.
- 7. I make work easier because it is always easy to pull down than to pull up.
Down
- 2. a type of energy we use for light and heat and on most of our machines in the house
- 3. looks like a seesaw and its used to lift up heavy objects