Volcanic Eruptions and Ejected Material

The video explains the relationship between the size of volcanic ejections and the power of eruptions. Larger ejections indicate less powerful eruptions, as seen in red volcanoes, which emit larger chunks. In contrast, gray volcanoes produce fine ash due to high pressure and power. The finer the ejected material, the more powerful the eruption. The video concludes with an encouragement to think like a scientist.

What does the size of the material ejected from a volcano indicate about the eruption?

• The larger the material, the less powerful the eruption.

• The size of the material indicates the color of the volcano.

• The larger the material, the more powerful the eruption.

• The size of the material has no relation to the eruption power.

Why do gray volcanoes eject fine ash?

• Because they are located underwater.

• Because they have more power and pressure.

• Because they have less pressure.

• Because they are cooler in temperature.

What is a characteristic of red volcanoes compared to gray volcanoes?

• They have more pressure.

• They eject finer ash.

• They eject larger chunks.

• They are more explosive.

What general rule is mentioned about the matter ejected from volcanoes?

• The size of the matter does not affect the eruption power.

• The larger the matter, the more powerful the eruption.

• The finer the matter, the more powerful the eruption.

• The finer the matter, the less powerful the eruption.

What happens to the chunks ejected by red volcanoes?

• They remain larger because of less pressure.

• They turn into fine ash due to high temperature.

• They dissolve in water.

• They are crushed and pulverized by high pressure.