The Lemonade Stand

Hey Sis,

do you have time this weekend to help me with my lemonade stand? 

Sure, why not!

This Weekend...

The Science Behind the Lemonade Stand



Thank you for your help, Sis!

No problem! It is a perfect day for a lemonade stand!

A few moments later...

Oh my god! The ice is melting! What is happening? 

No worries brother!  It is a natural occurrence! I got you covered.

Lisa

Age 20

Roy

Age 4

Lisa's Science Class



SOLID (ex: ice)

-substances that have definite shape and volume

Particles of a solid are are tightly packed together and are highly attracted to one another

=low kinetic energy.

LIQUID (ex: water)

- substances that have definite volume but indefinite shape 

Particles of a liquid have much more energy and less attraction causing them to move around more freely.

= higher kinetic energy compared to solid

GAS (ex: sparkling water)

- substances that have indefinite shape and volume

Particles of a gas are really far apart from each other and the least amount of attraction between them.

= high kinetic energy