|Name of Activity||Making Ice Cream|
|Keywords||ice cream, make, chemical engineering, chemistry, chemical reaction, molecules, 1 Hour Total, 4-6|
|Grade Level||4, 5, 6|
|Time||1 Hour Total|
|Brief Description||In this lesson, students make ice cream while learning about chemical engineering.|
|Lesson Objectives:||Learn a little bit about chemistry and chemical engineering.
Watch a chemical reaction in action.
|Materials Needed:||For a class of about 20 students:
20 quart sized zip-lock bags
For each group put the following ingredients into one zip-lock bag. When the bag is full place doubled-up the zip-locked bag with another bag to be sure that the ice cream does not leak out.
1/2 cup whole milk
Students will want to eat the ice cream so you should have a cup and a spoon for each students
You can also use the worksheet and PowerPoint attached to explain the science behind making ice cream.
|Preparation and Set Up:||This lesson has the potential to be very messy, so it is really helpful if you
think out how you are going to organize it before hand.
Break students into groups of two
Give each group an ice cream bag.
Give each group 2 gallon sized zip-lock bags
Give each group a worksheet
Set up the PowerPoint
|Necessary Background||Chemical engineers use chemistry to solve problems. Chemical engineers create many
of the substances we used today, such as cleaning products, explosives, and even
toys (silly putty!). Chemical reactions are the tools that chemical engineers use.
Chemistry is also used in the production of many food products. The action of
To make ice cream you must make the ice cream mixture of cream, milk and sugar
When salt is dissolved in water, the salt crystals break into smaller pieces. These small
|Extensions:||Use a thermometer to measure the temperature of the ice and water as the