Temperature has an effect on the speed a solid dissolves in water.

• True

• False

Answer explanation

True. Higher temperatures increase the kinetic energy of water molecules, allowing them to interact more effectively with the solid, thus speeding up the dissolution process.

Hot water makes a solid ___________________.

• dissolve faster

• dissolve slower

• not dissolve

Salt dissolves in water.

• True

• False

What happened to the solid in this photograph?

• it evaporated

• it melted

• it turned into condensation

• it dissolved

Dissolving means...

• to sink to the bottom

• to float to the top

• to break into tiny pieces you can't see

• to evaporate

Oil dissolves in water

• True

• False

Sand does not dissolve in water

• True

• False