How Small is an Atom?

Everything is made up of little tiny things called _____

• compounds

• molecules

• atoms

• solids

Tags

NGSS.MS-PS1-1

From the diagram, which particles are indicated with the arrow?

• electrons and protons

• protons and neutrons

• electrons and neutrons

• photons and nucleons

These particles orbit around the nucleus of an atom. What are they called?

• electrons

• protons

• neutrons

• photons

Tags

NGSS.MS-PS1-1

If a grapefruit's atoms were the size of blueberries, then the grapefruit would be the size ___

• of the Earth

• of a house

• of a city

• of the solar system

Tags

NGSS.MS-PS1-1

If you filled the Earth with blueberries, that same number would represent the atoms in _____

• a grapefruit

• the sun

• a basketball

• a grain of sand

In the center of the atom is something called _____

• the kernel

• the cell

• the nucleus

• the focal point

Tags

NGSS.MS-PS1-1

What are the names of the particles in the nucleus?

• protons and neutrons

• protons and electrons

• photons and neutrons

• nucleons and protons

Tags

NGSS.MS-PS1-1

Near the outside of an atom, you'd find _____

• electrons

• protons

• neutrons

• photons

Tags

NGSS.MS-PS1-1

Old pictures of the atom from science textbooks are wrong because _____

• they show the nucleus at the center

• they're not drawn to scale

• the nucleus is drawn too small

• the electrons are on the outside

Tags

NGSS.MS-PS1-1

If you opened up a blueberry, which represented an atom, the nucleus would be _____

• too small to see

• barely visible

• the size of a seed

• almost the size of the blueberry

Tags

NGSS.MS-PS1-1