Pontoon bridge

Pontoon bridge

1. Why were these bridges created?

To move across from each side without any struggles.

2. How were they built?

They were created with planks, adjusted with ropes.

3. How are they reusable? 

It can be taken down to be re-used as another bridge but in another location.

Types of energy

Today we are learning about types of energy and their transformations.

1. Light energy 

- light 

2. Heat energy

- Energy caused from fast movements

    

3. Sound energy

- Anything that can be heard

4. Kinetic energy:

- anything that moves

5. Electrical energy

- Anything that has electricity

6. Gravitational energy

- Things high above the ground

7. Chemical potential energy

- Found in food

8. Elastic energy: 

- Found in extendable objects

Example of Energy transformations