Electricity • Teacha! - Free Printable

Problem Description:

The task is to identify which items in the image require electricity to function. The items shown are:

1. A clock
2. A refrigerator
3. A vacuum cleaner
4. Sticky notes
5. A bicycle
6. A pen

Solution Approach:

To solve this problem, we need to determine whether each item requires electricity to operate. Let's analyze each one:

1. Clock:
- Traditional analog clocks (like the one shown) do not require electricity to work. They typically use mechanical or quartz mechanisms that do not rely on electrical power.
- Does not need electricity.

2. Refrigerator:
- Refrigerators are appliances that require electricity to run their compressors and cooling systems.
- Needs electricity.

3. Vacuum Cleaner:
- Vacuum cleaners are electrically powered devices that use motors to suck up dirt and debris.
- Needs electricity.

4. Sticky Notes:
- Sticky notes are paper-based stationery items and do not require any power source to function.
- Does not need electricity.

5. Bicycle:
- Bicycles are manually operated vehicles that rely on human power for movement.
- Does not need electricity.

6. Pen:
- Pens are writing instruments that do not require any power source to function.
- Does not need electricity.

Final Answer:

The items that need electricity to work are:
- Refrigerator
- Vacuum Cleaner

Explanation:

By analyzing each item based on its functionality, we can clearly see that only the refrigerator and the vacuum cleaner require electricity to operate. The other items (clock, sticky notes, bicycle, and pen) do not depend on electricity for their operation.

Thus, the correct answer is:
\boxed{\text{Refrigerator, Vacuum Cleaner}}