In this activity children will imagine finding some of these plastic toys washed up on the beach.
In this activity children look at the factors that affect dissolving to plan an investigation to find out the quickest method of removing the new gum.
Students and lecturers at Manchester Metropolitan University try to explain this seemingly simple phenomenon.
In this activity children dissolve salt in water to make a saturated solution and investigate evaporation on the size of salt crystals grown.
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