Particle party - temperature taker

Science Year 4
This unit is part of Year 4 Science States of Matter Scientists

Objectives

Children will learn about how particles behave in different states, and use a thermometer to make observations as water changes from one state to another.

Science Objectives
i) Compare and group materials together, according to whether they are solids, liquids or gases.

ii) Observe that some materials change state when they are heated or cooled, and measure or research the temperature at which this happens in degrees Celsius (°C).

Working Scientifically

  1. Ask relevant questions and use different types of scientific enquiries to answer them.
  2. Set up simple practical enquiries and comparative and fair tests.
  3. Make systematic and careful observations and, where appropriate, take accurate measurements using standard units, using a range of equipment, including thermometers and data loggers.
  4. Report on findings from enquiries, including oral and written explanations, displays or presentations of results and conclusions.
  5. Use straightforward scientific evidence to answer questions or to support findings.

Other Curriculum Areas
Maths

  • Count backwards through 0 to include negative numbers.
  • Understand and use a greater range of scales in their representations.
  • Begin to relate the graphical representation of data to recording change over time.

You Will Need

Provided Resources

  • ‘Prediction, Observation, Conclusion’ table – print & enlarge for whole class to use
  • Independent activities sheets – 1 each (session resources)

Additional Resources

  • Thermometers
  • Coloured ice cubes (blue & yellow)
  • Bowl
  • Coloured pencils for sketches
  • Camera / video cameras

Lesson Planning

Teaching

  • Understand, through practical tasks, that materials change state when they are heated or cooled and describe this process using scientific language.

Activities

  1. Use role-play as a model of how a substance can change from one state to another.
  2. Learn to accurately use a thermometer.
  3. Use scientific language to describe to another what happens to the particles when a substance changes state.
  4. Make careful observations over time.
  5. Use a data logger to record temperature over time and interpret the results.
  6. Understand that liquids have a solidifying point (to become solid) and a boiling point (to change to gas).

Investigation - observing over time/exploring
Understand the behaviour of particles in the different states and use a thermometer to observe temperature changes of water.

Vocabulary
Solidifying, freezing, melting, condensing, evaporating, particles, thermometer, temperature, Celsius, Fahrenheit, degrees