The Amazing Journey of Water: Energy and State Changes

Multiple Choice

Why is water considered special when discussing the states of matter?

• Because it is the only substance that exists

• Because it can be observed in all three states in everyday life

• Because it never changes state

• Because it is always a liquid

Multiple Choice

What happens to water molecules when energy is added by heating?

• They move faster

• They move slower

• They freeze

• They evaporate immediately

Multiple Select

Which of the following changes occur when ice melts into liquid water?

• The molecules begin to vibrate faster

• The rigid structure breaks down

• The temperature drops below freezing

• Ice transforms into liquid water

Multiple Choice

At what temperature does water reach its boiling point and begin to form bubbles of gas?

• 0°C (32°F)

• 50°C (122°F)

• 100°C (212°F)

• 200°C (392°F)

Multiple Choice

During which two processes does energy flow OUT of water?

• Condensation and freezing

• Melting and evaporation

• Evaporation and condensation

• Melting and freezing

Multiple Choice

Which of the following is an example of water changing from a liquid to a gas in daily life?

• Ice cubes melting in a drink

• Puddles evaporating after rain

• Morning dew forming on grass

• Water freezing in the freezer

Labelling

Label the following

Drag labels to their correct position on the image

Evaporation

Freezing

Melting

Condensation

Open Ended

What are the three main states of matter and how does water demonstrate each state in everyday life?

Open Ended

Where do you think energy goes when water freezes? Where does energy come from when ice melts?