The document describes how a tornado forms and its effects. A tornado starts with winds spinning a column of air that bulges from thunderclouds and touches the ground. Warm, humid air is then pulled into the often funnel-shaped column, causing the air to spin extremely fast and creating an area of very low pressure. The swirling funnel then descends to the ground while continuing to pull in surrounding air, resulting in wind speeds over 400 km/hr that can destroy anything in the tornado's path.

1. • The charges travel through the air in a lightning
discharge .
• The air along the path of a lightning bolt extremely
hot
• The air along the path of a lightning bolt extremely
hot
• The intense heat makes the air expand so fast that
sound waves are produced .

2. Tornado
• It is a violently rotating column of air that extends downward from
thunderclouds and touches the ground.

3. • A tornado starts when winds spin a column of air that
bulges from the bottom of the cloud .
• Strong updrafts ,or rising air ,are already present
inside this bulge.
• Next warm, humid air is pulled into the often funnel-
shaped column.
• The air spins so fast that an area of very low pressure
forms in the center.

5. • The swirling funnel starts to descend.
• Because of the low pressure air in the near by area
rushes into the funnel.
• The air in the funnel rotates upward around the
center, joining the storm above.
• The wind speed in the tornado can reach 400km/hr or
more.

6. • The force of the tornado ‘s winds destroy houses ,
cars and anything in its path.