Melting and combining 19 elements! Does it make a Super-Alloy?!

Melting and combining 19 elements! Does it make a Super-Alloy?!

Assessment

Interactive Video

Science, Chemistry, Engineering

1st - 6th Grade

Hard

Created by

Quizizz Content

FREE Resource

The video explores the creation of a super alloy using 19 different elements. The process involves melting and mixing elements like aluminum, copper, and gold, and attempting to forge a knife. Challenges arise due to the brittleness of the alloy and difficulties in melting high melting point elements like tungsten. Alternative casting methods using grapes are explored, resulting in a unique, fragile material. The experiment highlights the complexity of creating high entropy alloys and the need for specialized equipment.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the initial goal of combining 19 different elements in the experiment?

To create a super alloy

To make a new type of fuel

To create a new type of glass

To develop a new type of plastic

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a high entropy alloy?

An alloy with a high melting point

An alloy made from a large number of elements

An alloy that is highly conductive

An alloy that is very lightweight

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the main issue faced when trying to forge the alloy into a knife?

The alloy was too expensive

The alloy was too soft

The alloy was too brittle

The alloy was too heavy

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the result of trying to reheat and reshape the knife?

The knife fell apart

The knife melted completely

The knife became more flexible

The knife became sharper

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did the narrator conclude about the alloy's suitability for making a knife?

It was too heavy for making knives

It was too expensive for making knives

It was too brittle for making knives

It was perfect for making knives

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What alternative method did the narrator use to create a cast with the alloy?

Using a mold filled with sand

Using a mold filled with grapes

Using a mold filled with clay

Using a mold filled with water

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What was the unique characteristic of the final cast made with grapes?

It was transparent

It was very lightweight

It was extremely durable

It had a unique color