- Science

4. Investigate how solubility is affected by heat and stirring

Mission Objectives

Explain how heat affects the solubility of substances

Describe the role of stirring in influencing solubility

Conduct experiments to observe changes in solubility with heat and stirring

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Keywords

Words and meanings to learn

particles

the tiny pieces that make up a substance

solubility

how well a substance (like sugar or salt) can dissolve in a liquid (like water)

heat

the energy that makes things warmer; it can help some substances dissolve faster in water

stirring

the action of mixing a substance in a liquid to help it dissolve faster

cloudy

when a liquid is not clear and appears murky or opaque

This lesson has been written by

Katie Barrie


Katie is the Chief Operating Officer at DE, which means she oversees HR, finance and our business model. After studying Drama at Exeter University, Katie spent three years as a primary teacher, before relocating to Norfolk and joining Developing Experts. 

In her spare time, Katie likes to sing with Norwich Harmony barbershop chorus and has recently formed a quartet. Katie loves cooking and spending time with her husband, Bryan and dog, Bertie. She has an endearing laugh, which has to be heard to be believed. Many of us see Katie as the office 'Mum', she gives great hugs and keeps our spirits up.  

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Required Resources

Resources: Three containers filled with water of different temperatures; a thermometer; spoons for stirring; sugar cubes and the handout.

Core Handout (2): A place for the children to record their findings from the investigation.

Challenge Handout (4): A place for the children to predict whether sugar, salt or honey will dissolve in water the quickest.

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