Main causes of a heat dome?

About this printable Main causes of a heat dome science reading passage, NGSS-aligned (Grades 4-5)

Heat domes are caused by specific atmospheric patterns, primarily involving high-pressure systems. These high-pressure areas act like a cap, trapping hot air underneath and preventing it from escaping. Clear skies and calm weather associated with these systems allow the sun to continuously heat the ground and air, increasing temperatures. Occasionally, warmer-than-usual ocean temperatures contribute to the formation of heat domes by heating the air above, which then moves over land. Climate change can intensify and increase the frequency of these events. Understand the main causes of heat domes and test your knowledge with engaging multiple-choice questions.

Written by Neha Goel TripathiPublished by Workybooks

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Sample passage and quiz from Main causes of a heat dome

Heat domes are caused by special patterns in the way air moves high up in the sky. These patterns are part of our planet's weather system.

The main cause of a heat dome is high pressure in the atmosphere. This is an area where the air pressure is higher than the areas around it. This high pressure acts like a cap, trapping hot air underneath.

High-pressure systems often bring clear skies and calm weather. The sun keeps shining through the clear skies, heating the ground and the air even more. With nowhere for the hot air to go, it just keeps getting hotter.

In a heat dome, a very strong high-pressure system gets stuck in one place. It's like a big, invisible mountain of air that doesn't want to move.

Sometimes, changes in ocean temperatures can help create the conditions for a heat dome. When ocean water is warmer than usual, it can cause the air above it to heat up too. This warm air can then move over land, creating a heat dome. Climate change can make heat domes more common and intense.