Just How Small is an Atom?

​Just How Small is an Atom?

TedEd Lesson​

Poll

What is contained in the nucleus of an atom?

• Protons and neutrons

• Electrons

• Neutrons only

• The DNA and chromosomes

Multiple Choice

What is in between the nucleus and the electrons in an atom?

• A jello-like goo

• Protons and Neutrons

• A mushy substance similar to pudding

• Empty space

Multiple Choice

The number of atoms in a grapefruit would be equivalent to

• The number of blueberries in the Sun

• The number of blueberries in a house

• The number of blueberries that would fit into the world

• The number of blue berries in the ocean

Multiple Choice

If you had an atom that was blown up to the size of a blueberry, the nucleus would be the size of....

• It would be invisible

• It would be the size of a grain of sand

• It would be the size of a marble

• It would be the size of a golf ball

A physical property to describe how much "stuff" is in there​

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​Density

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Multiple Choice

Which is "more dense," the bowling ball or the volleyball? What does your gut tell you "has more stuff"?

• Bowling Ball

• Volleyball

Multiple Choice

The density of a typical nucleus is proportional to...

• 6.2 billion cars in a one cubic foot box

• the density of lead

• the density of water (1 g/mL)

• the density of an aircraft carrier

Open Ended

Describe the size and scale of an atom. Explain the relative size of the nucleus in relation to the size of the entire atom.

Open Ended

Come up with your own analogy as to the size of an atom. Do some proportions to determine how you could describe how small an atom is.

Open Ended

Do some research on dwarf stars. Then comment on how the density of an atom is related to dwarf stars. Cite your sources in your response.

​Thank you!