Drag each tile to the correct box. Arrange the brain-wave stages from waking to sleeping states. beta waves delta waves alpha waves theta waves ↓ ↓ ↓

1) Beta waves

2) Alpha waves

3) Theta waves

4) Delta waves

Explanation:

1) Beta waves

The person is awake and alert. These waves have very low amplitude and a high frequency of 13 - 30 waves\second

2) Alpha waves

The person is awake and relaxed, with closed eyes. These waves have low amplitude and a frequency of 8 - 13 waves/second

3) Theta waves

The person is sleepy or in sleep transition.. These waves have low-medium amplitude and a frequency of 3 - 7 waves/second

4) Delta waves

The person is in deep sleep. These waves have high amplitude and a low frequency of about 3 waves/second