- Science

3. Discover materials that dissolve in water

Mission Objectives

Understand the concept of solubility

Differentiate between materials that are soluble and insoluble in water

Conduct and record results from a solubility experiment

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Keywords

Words and meanings to learn

material

a substance or item used in an experiment or study, like salt, sugar or paper

dissolve

when a substance mixes completely with a liquid so that it appears to disappear, forming a solution

fair test

an experiment where only one factor is changed at a time while keeping all other conditions the same to ensure reliable results

prediction

a guess about what will happen in the future based on what you know or have observed

solution

a mixture where one material is completely dissolved in another, such as sugar dissolved in water

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.  

Contact: [email protected]  

Required Resources

Resources: Water and glasses/cups, spoons, a stopwatch and materials to test for dissolving (coffee, baking powder, baby powder, laundry detergent, plastic beads, etc).

Core Handout (2): An investigation sheet for the children to fill in as they conduct their experiment. Spaces are included for them to write their prediction, a description of how they'll ensure they're doing a fair test, and a results table.

Challenge Handout (4): A space for the children to predict how different types of sugar might interact with water.

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