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Lesson Worksheet: Energy, Particle, and Changing State of Matter Science

In this worksheet, we will practice describing changes in particles and energy during the changes in states of matter.

Q1:

When a liquid is cooled down, what will happen to its particles?

  • AThe particles will move faster and move apart from each other.
  • BThe particles will move slower and become tightly packed.
  • CThe particles will stay the same.

Q2:

Fill in the blank: The particles in evaporating water .

  • Aslide past each other
  • Bspread apart
  • Cmove slowly
  • Dmove together

Q3:

Amelia put a small amount of water in a cup and left it in warm sunshine. After two days, the water disappeared. She explained what happened to the water particles.

Glass of Water

Fill in the blanks: The water particles energy, and the particles move , so the water .

  • Again, faster, evaporates
  • Bgain, faster, condenses
  • Close, slower, condenses
  • Dlose, slower, evaporates

Q4:

What happens to the energy of ice particles when an ice cube sits out on a counter and melts?

Melted ice
  • AThe energy of the ice particles decreases.
  • BThe energy of the ice particles increases.
  • CThe energy of the ice particles neither increases nor decreases.

Q5:

Fill in the blank: As energy in matter , the particle motion slows down.

  • Ais added
  • Bis removed
  • Cremains the same

Q6:

Select the image that represents melting.

  • A
  • B
  • C

Q7:

When the temperature of a liquid increases, what will happen to its particles?

Micro blue particles in liquid
  • AThe particles will move faster and away from each other, changing the liquid into a gas.
  • BThe particles will stay as they are.
  • CThe particles will move slower and become tightly packed, changing the liquid into a solid.

Q8:

If a cup of hot coffee is put on a table to cool down, what will happen to the coffee particles?

Coffee in blue cup on wooden table in cafe
  • AThe particles will move at the same speed.
  • BThe particles will move slower and closer to each other.
  • CThe particles will move faster and away from each other.

Q9:

Fill in the blank: The particles in matter as energy is added.

  • Amove slower
  • Bdo not move
  • Cmove quicker
  • Dmove close together

Q10:

The figure represents freezing.

Select the suitable square to replace the letter A to complete the figure.

  • A
  • B

This lesson includes 9 additional questions for subscribers.

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