Chemistry- grade 6

What is it called when gas molecules spread out because the volume of the container increases?

• compression

• expansion

• sublimation

• evaporation

What is it called when the molecules in a gas crowd closer together, like when the volume of the container decreases?

• compression

• expansion

• sublimation

• evaporation

Tags

NGSS.MS-PS1-4

What is it called when molecules change from a gas to a liquid?

• freezing

• melting

• sublimation

• condensation

Tags

NGSS.MS-PS1-4

What is called when molecules change from a liquid to a solid?

• freezing

• melting

• sublimation

• condensation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is it called when molecules change from a solid directly into a gas (skipping the liquid phase)?

• freezing

• melting

• sublimation

• evaporation

Tags

NGSS.MS-PS1-4

What is it called when molecules change from a solid into a liquid?

• freezing

• melting

• evaporation

• condensation

Tags

NGSS.MS-PS1-4

What is it called when molecules change from a liquid to a gas?

• freezing

• evaporation

• condensation

• sublimation

Tags

NGSS.MS-PS1-4

The nucleus of an atom is made of...

• protons and electrons

• protons and neutrons

• electrons and neutrons

• peanut butter and jelly

Tags

NGSS.MS-PS1-1

The subatomic particle with a negative charge is the...

• electron

• neutron

• proton

• nucleus

Tags

NGSS.MS-PS1-1

The atomic number for an element tells you...

• the number of neutrons it always has in each atom

• the number of electrons it always has in each atom

• the number it wears on its soccer jersey

• the number of protons it always has in each atom

Tags

NGSS.MS-PS1-1