Changing States

Draw an example of a liquid changing to a solid.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What are the three main states of matter?

• Solid, liquid, and gas

• Ice, water, and steam

• Temperature, pressure, and energy

• Hot, cold, and warm

Compared to ice, how do molecules of water behave?

• They move less freely.

• They are locked into a crystal lattice.

• They move more freely

• They bounce off one another randomly.

Tags

NGSS.MS-PS1-4

What do water vapor, liquid water, and ice have in common?

• The same crystal lattice structure.

• The same amount of energy.

• The same physical properties.

• The same chemical properties.

Tags

NGSS.MS-PS3-4

The melting point of H2O is 0 degrees Celsius. This is the same as its:

• Boiling point

• Vaporization point

• Fusion point

• Freezing point

Tags

NGSS.MS-PS1-4

What is it called when a solid turns directly into a gas?

• Sublimiation

• Vaporization

• Melting

• Fusion

Tags

NGSS.MS-PS1-4

If you put a thermometer into a pot of melting ice, when will the temperature rise past zero?

• As soon as the ice begins to melt.

• After most of the ice has melted.

• When the ice begins turning into steam.

• When all the ice has melted.

Tags

NGSS.MS-PS1-4

In what way are liquids different from solids?

• Liquid molecules are lighter than solid molecules

• Liquids are made of atoms; solids are made of molecules.

• Liquids don't have a fixed shape; solids do.

• Liquids are always denser than solids.

Tags

NGSS.MS-PS3-4

What happns to the chemical structure of water when it changes state?

• Water molecules break apart to form individual atoms.

• Water molecules harden into ice molecules.

• Water molecules melt into gas molecules.

• Nothing happens to the chemical structure.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What will happen if you keep increasing the temperature of a liquid?

• It will boil and become a gas

• It will transpire

• It will remain a liquid

• It will solidify

Tags

NGSS.MS-PS1-4