Heat Movement and Earth's Dynamic Crust

Jared from Fun Science Demos explains how heat moves matter, using a lamp and Earth as examples. The video demonstrates how heat causes wax in a lamp to rise and fall, similar to how heat inside Earth moves matter and affects the crust. A model using milk and chocolate powder illustrates plate tectonics, showing how heat causes plates to move, leading to earthquakes, volcanoes, and mountain formation.

What causes the wax in the lamp to rise?

• The wax is magnetic.

• The wax is lighter than air.

• The wax is pushed by a fan.

• The heat from the bulb makes the wax rise.

What happens to the wax when it cools down?

• It evaporates.

• It stays at the top.

• It drops back down.

• It changes color.

What is the main source of heat inside the Earth?

• The Earth's core.

• The sun.

• Volcanoes.

• Lightning.

What are the large sections of the Earth's crust called?

• Mountains.

• Continents.

• Oceans.

• Plates.

What is used to represent the Earth's crust in the model demonstration?

• Sand.

• Water.

• Chocolate powder.

• Milk.

What is the purpose of the milk in the model demonstration?

• To add flavor.

• To act as a heat source.

• To represent the liquid matter under the crust.

• To cool down the setup.

What forms as the plates in the model start to move?

• Cracks.

• Mountains.

• Lakes.

• Rivers.

What natural phenomena are caused by the movement of tectonic plates?

• Wind.

• Tides.

• Earthquakes.

• Rain.

What is the term used to describe the movement of the Earth's crust?

• Plate tectonics.

• Erosion.

• Sedimentation.

• Weathering.

What can the movement of tectonic plates create over time?

• Deserts.

• Forests.

• Mountains.

• Oceans.