1. Components are the parts that make up a system, machine, or mixture.

2. Changing the number of components means adding or removing parts.

3. This can affect how the whole system works.

4. In electrical circuits, adding bulbs can make them dimmer.

5. Removing a component might stop the system from working.

6. In mixtures, adding more substances changes the final result.

7. In machines, more components may improve or complicate functions.

8. In nature, changing living components affects food chains.

9. Scientists change components to test and learn how systems behave.

10. It's important to understand how each component affects the system.