What kind of rock grows This delicious candy is actually crystalized sugar and you can grow it from your own sugarwater solution As a kid I thought rock candy was amazing and I still think it looks pretty neat You will learn that making your own rock candy is a fun and tasty way to grow crys ID: 559982
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Slide1
Rock candy !
What kind of rock grows? Slide2
This delicious candy is actually crystalized sugar and you can grow it from your own sugar-water solution. As a kid I thought rock candy was amazing, and I still think it looks pretty neat! You will learn that making your own rock candy is a fun and tasty way to grow crystals and see the structure of crystals on a big
scale as they form into rocks.
To get you to better understand the three different types of rocks,
Igneous
,
Sedimentary
and
Metamorphic
, we will explain each type of rock by providing you with your own flavor.
Sounds
fun right? Now lets dig in! Slide3
Task
After studying rocks in our third grade science class, its your turn to show me how much you know
Each group will be handed a note card with facts about a certain type of rock
It’s now your job to determine what rock you have by using the different food coloring
Now it’s time to make your rock!Slide4
Step 1
Get into your assigned groups
Read the note card passed out to your team and determine if you guys are Igneous, Metamorphic, or a Sedimentary rock.Slide5
Step 2
Gather the ingredient's. You will need:
2 cups of H2O
3 cups of sugar
-1/4 cup corn syrup
-food coloring for your specific rock
-igneous:
RED
-sedimentary:
BLUE
-metamorphic:
GREEN
-cotton string/skewer
-paper clip
-jarSlide6
Step 3
Tie a piece of string around the middle of the pencil. It should be long enough that it is 1” above the bottom of the jar when placed on top the jar.
If you have a skewer, use a clothes pin and attach it to the center. Slide7
Step 4
Wet the string. Roll it in sugar. Slide8
Step 5
Remove the boiling water and stir in the sugar and corn syrup. Add 1tbsp at a time until it has dissolved.
Add in your designated food coloring
Must be assisted by your teacher Slide9
Step 6
Pour the sugar water into your glass jar.
Be careful it will be very hot.Slide10
Step 7
Tie a string (or skewer) to the center of a pencil.
Put the string (or skewer) in the water and have the pencil lay across the top of the jar.
Be sure to not have the string (or skewer) touch any part of
the jar.Slide11
Step 8
Place the jar some where that it will not be bothered
Be sure to not put it in a refrigerator Slide12
Step 9
Leave your string or skewer in the jar until you think the crystals are big enough.
These crystals will start forming in a day or so.Slide13
Step 10
Now you can remove the string or skewer from the glass jar and let it dry.Slide14
Step 11
After it dries…it’s time to eat your rock candy!Slide15
RUBRIC
Exemplary
4
Qualified
3
Developing
2
Beginning
1
Points
Earned
Following the Steps
The students
did an excellent job of following instructions.
The students did a good job of following instructions.
The students
began their rock candy but did a few steps incorrectly.
The students
did not complete their rock candy.
Understanding Types
of Rocks
Students
are able to identify the differences of the three types of rocks
Students are able
to identify some, but not all types of rocks.
Students can
recognize a rock but cannot explain where it came from.
Students cannot identify
different types of rocks.
Final
Product
Many
crystals were clearly formed.
The rock candy turned out the way that it was supposed to.
The rock
candy did not form as well as it could have.
No
rock candy formed.
Group Participation
The group
worked very well together, listened to each other’s ideas and did a great job of staying on task.
The group worked well together and did
a good job of staying on task.
The group did
not stay on task, but did complete the project.
The group
did not do a good job of working as a team.Slide16Slide17
Credits
How-to-Make-Rock-Candy
Amirah
, Julie, Katie, and Megan