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Team Number________ Name: ____________________ ___________________________

Sink or Float STEM Challenge: Candy Edition

The problem: You love to eat candy in the bathtub (that really is a problem!) but you are a little clumsy so you only want to snack on candy that will float if you drop it. How do you know which candies to buy?

Your Goal: Conduct tests to determine if several well-known candies sink or float in water.



Predictions




Candy

Sink

Float

Class Prediction Data

Test Results

Sink

Float

1

https://lovefromcompanies.com/image/cache/data/red0736300-400x400.jpg
















2

http://faithfulprovisions.com/wp-content/uploads/2011/09/milk-way.jpg
















3

https://www.ulabox.com/media/11216_l1.jpg
















4

http://lgcdn.candyfavorites.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/4/1476.jpg_1.jpg
















5

http://img1.cookinglight.timeinc.net/sites/default/files/styles/400xvariable/public/image/2011/10/1110p42-kit-kat-snack-size-m.jpg?itok=glerw11k
















6

http://img1.cookinglight.timeinc.net/sites/default/files/styles/400xvariable/public/image/2011/10/1110p42-butterfinger-funsize-m.jpg?itok=g3m05mhc
















7

http://a.dilcdn.com/bl/wp-content/uploads/sites/8/2011/10/lifesaver-gummies-2.jpg
















8

http://img1.cookinglight.timeinc.net/sites/default/files/styles/400xvariable/public/image/2011/10/1110p42-starburst-funsize-m.jpg?itok=0mzwto7c
















Research It

First, find the answers to the following using the reference tools available to you—iPads and laptops. You have 20 minutes.

What causes objects to sink or float? ______________________________________________________________________________________________________________________________________________________________________________________________________________________

Vocabulary

Caramel ________________________________________________________________________________________________

Density _________________________________________________________________________________________________

Float _____________________________________________________________________________________________________

Nougat __________________________________________________________________________________________________

Properties of Matter __________________________________________________________________________________

Sink _____________________________________________________________________________________________________

Whipped ________________________________________________________________________________________________

During the Demonstration



Candy

Observations

1

Hershey




2

Milky Way




3

Twix




4

Whoppers




5

Kit Kat




6

Butterfinger




7

Gummies




8

Starburst




Results

Sinks

Floats

















































What do the candies that sink have in common?

______________________________________________________________________________________________________________________________________________________________________________________________________________________

What do the candies that float have in common?

______________________________________________________________________________________________________________________________________________________________________________________________________________________

How were your predictions different from the results? How were they the same?

_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

A Closer Look at Our Candy





Candy

What’s Inside?

First 4 ingredients in order and give 2 or more properties



Reasoning for

Sinking and

Floating


1

https://lovefromcompanies.com/image/cache/data/red0736300-400x400.jpg

Ingredients:

Properties:




Hershey’s _________ because

2

http://faithfulprovisions.com/wp-content/uploads/2011/09/milk-way.jpg

Ingredients:

Properties:




Milky Way _________ because

3

https://www.ulabox.com/media/11216_l1.jpg

Ingredients:

Properties:




Twix _________ because

4

http://lgcdn.candyfavorites.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/1/4/1476.jpg_1.jpg

Ingredients:

Properties:




Whoppers _________ because

5

http://img1.cookinglight.timeinc.net/sites/default/files/styles/400xvariable/public/image/2011/10/1110p42-kit-kat-snack-size-m.jpg?itok=glerw11k

Ingredients:

Properties:




Kit Kat _________ because

6

http://img1.cookinglight.timeinc.net/sites/default/files/styles/400xvariable/public/image/2011/10/1110p42-butterfinger-funsize-m.jpg?itok=g3m05mhc

Ingredients:

Properties:




Butterfinger _________ because

7

http://a.dilcdn.com/bl/wp-content/uploads/sites/8/2011/10/lifesaver-gummies-2.jpg

Ingredients:

Properties:




Lifesaver Gummies _________ because

8

http://img1.cookinglight.timeinc.net/sites/default/files/styles/400xvariable/public/image/2011/10/1110p42-starburst-funsize-m.jpg?itok=0mzwto7c

Ingredients:

Properties:




Starburst _________ because

Think About It

What questions do you have? What would you like to investigate further?



  1. Would the test results change if… ________________________________________________________________________________________________________________________________________________________________________________________________________

What experiment could you do to find the answer to this question? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

  1. Would we get different results if… ______________________________________________________________________________________________________________________________________________________________________________________________________________________

What experiment could you do to find the answer to this question? ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

What candies could you buy to eat in your bathtub and why?

______________________________________________________________________________________________________________________________________________________________________________________________________________________

My Candy Experiment

Question to be answered: ________________________________________________

_____________________________________________________________________

Hypothesis: I think that when _____________________________________________

_____________________________________________________________________



Materials Needed to Conduct Experiment



















Procedure

  1. ___________________________________________________________________

  2. ___________________________________________________________________

  3. ___________________________________________________________________

  4. ___________________________________________________________________

  5. ___________________________________________________________________

  6. ___________________________________________________________________

Observations (Gather information any way you choose)

Results: (What you discovered)

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

Conclusion:

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________

___________________________________________________________________________________________________________



___________________________________________________________________________________________________________


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