STEM Project Fun with Foam

Introduction to Foam

STEM Project Fun with Foam  Have you ever thought about foam?  What do you think it is?  Can you think of different types of foam?  Where else might foam be useful?  Have a talk to someone and then... ...see if your ideas are the same as mine...see if your ideas are the same as mine

STEM Project Roles & Responsibilities  Administrator keeps a written and pictorial record for the group  Resource Manager collects, sets up and returns all equipment used by the group  Communications Officer collects the group’s ideas and reports back to the rest of the class.  Health and Safety Manager takes responsibility for the safety of the group, making sure everyone is working sensibly with the equipment  Personnel Manager takes responsibility for resolving disputes within the group and ensuring the team works together

Fun with Foam Activity 3 – Making Foam

STEM Project Making Foam  You need to come up with a method to make and measure foam  What's the best way to make foam?  How much bubble mixture should you add?  What do you do to make the froth appear?

STEM Project Measuring Foam  Can you think of a way to measure how much foam you have made?  What would you try to measure?  What would you use to do the measuring?

STEM Project You will need  A plastic pop bottle  20ml foam mixture  A pipette  A whisk  A spoon  A straw  A bowl  A jug  A pen

Fun with Foam Activity 4 – Comparing Bath Foams

Comparing Foam

STEM Project Comparing Bath Foams  Use the best method from the first activity to compare different bath foams  Which one gives the most foam?  How can you compare them in the same way?  How will you record your results?

STEM Project You will need  Equipment from last time  Samples A, B and C  Sumptuous Skincare Test Product  3 pipettes

Fun with Foam Activity 5 – Increasing Viscosity

A Runny Problem

STEM Project You will need  500ml bubble bath mixture  Cornflour  Salt  Hair gel  A teaspoon  Laminated card  A stop watch  Blu-Tack  6 disposable cups  Investigate the best way to change and measure the viscosity of the bubble bath mixture

STEM Project Things to think about  How much bubble bath mixture will you use each time?  How much thickener will you add?  How will you measure the thickness of the liquids?  Does the product you’re making look and feel pleasant to use? Would you buy it?  How will you record your results?