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CRYGARD
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ROCK GARDEN
TEACHER: David Agnew and Rodney Beckett
GRADE: Fifth and Third
SKILLS AREA: Science
MAJOR CONCEPT: Creating your own rock garden.
OBJECTIVES: The Student Will:
1. Follow a series of precise instructions.
2. Create their own crystal garden.
3. Perform the scientific principle.
4. Describe their science experiment and results in
a journal format.
MATERIALS: Aluminum Pans, six charcoal briquets each group, salt,
bluing, water, ammonia, coffee cans, table spoon, food coloring,
paper, pencil.
PROCEDURES: Teacher Will:
1. Introduce the activity.
2. Explain the directions to the experiment.
3. Place six charcoal briquets in an aluminum pie
tin.
4. Measure 6 tbs. salt, 6 tbs. of bluing, 6 tbs. of
water and 1 tbs. of ammonia. Pour them into a
coffee can and mix them well.
5. Squeeze different food colors onto 4 of the
briquets--one color for each. Squeeze all 4
colors on the fifth briquet. The sixth briquet
is not to be colored.
6. Pour the salt mixture evenly over the 6 briquets.
7. Place the pie tin and briquets in a warm area.
8. Mix the same solution of salt bluing ammonia and
water in the can and cover tightly.
9. Add this solution over the "garden" of briquets
every day to keep the crystals growing. Add the
food coloring every two days.
10. Have the students describe what the crystals look
like every day for eight days; color, size,
shape, texture. Record responses on the
chalkboard or in a journal.
The crystal garden will have the appearance of coral and will be
soft and powdery to the touch.
EVALUATION: Participation during the activity, completion of the
activity, completion of the journal or paper.
**This will be an on going experiment.
MATERIAL FOR ROCK GARDEN LESSON
Introduce this material before going to the science lab to conduct
the experiments.
Vocabulary:
a. Igneous Rock: Cooled Magma.
b. Sedimentary Rock: Layers of loose material which
solidified.
c. Metamorphic Rock: rock that has been changed into a new
rock.
d. Crystal: Substance with a 3-dimensional plane faces.
Material: Earth Science, Grades 5-8, pages 59 and 62.
Objectives: Students Will:
1. Correctly complete the two work-sheets after
discussing the vocabulary.
2. Gain an understanding of what the vocabulary
means and carry this terminology into the Rock
Garden Activity.
Procedures: Teacher Will:
1. Review the vocabulary.
2. Pass out the two handouts.
3. Have students complete the Classy Rock handout.
4. Review this handout.
5. Have students cut out the shapes and form them
into crystals. (I recommend tape to fasten the
edges of the crystals, glue is messy and takes
time to dry)
6. Discuss the shapes and what other things come in
identical shapes.
7. Place models of crystals in a safe location so
they can be compared to the crystals we grow in
the classroom for our science experiment.
7. Prepare for our journey to the science lab.
Evaluation: Check for understanding of vocabulary while reviewing
the handout "Classy Rocks" and make sure that every child has
their model crystals finished. Color may be added later.