MindWare Crystal Hedgehogs User manual

Set up your work space –
protect the surface with a
tray or paper towels.
Choose which color of
hedgehog you want to
make first. Pour two packs
of crystal powder into the
growing container.
With an adult’s help, boil
water. Pour boiling water into
the growing container, leaving
½” of space at the top. You
will need approximately
1½ cups.
Immediately stir with the
stirring stick until the crystal
powder is completely
dissolved. Stir for 2 minutes.
(it may help to set a timer).
Place the lid on the
growing container. Let
the solution sit for
1 hour to cool.
Attach the plaster base to
the hedgehog figure as
shown. Peel the seal off of
the double stick tape and
push firmly to attach the
plaster base.
Open the lid. Using the
stirring stick, carefully
lower the hedgehog into
the liquid. Use the stick
to position the hedgehog
as shown, with the nose
touching the container
wall. You may see some
crystals on the bottom of
the container at this
stage, that is okay.
Place the lid on the
growing container again
and leave undisturbed for
24 hours.
After 24 hours, remove
the lid and let the liquid
sit for an additional 24
hours until some of the
solution has evaporated.
Carefully remove the
hedgehog from the
growing container. Place
it on newspaper or paper
towels to dry. Dispose of
the liquid in the growing
container and clean by
hand to prepare for
growing your next
colored hedgehog.
CONTENTS IMPORTANT NOTE:
1
Step
2
Step
4
Step
5
Step
9
Step
6
Step
8
Step
3
Step
7
Step
10
Step
2 Hedgehog Molds
4 Packs of Crystal Powder
2 Stirring Sticks
Growing Container
Instruction Guide
INSTRUCTION
MANUAL
Typically the hedgehog spines will be fully grown after one
day. However, you can let the crystals grow for up to three
days. When the grown crystals reach above the surface of
the water, remove the lid and proceed with step 10.
Crystals may naturally develop on the plastic figurine. Use
the stirring stick and damp paper towel to clean.

INGREDIENTS
SAFETY RULES
Not suitable for children under 8 years. For use under
adult supervision.
Contains some chemicals which present a hazard to
health.
Read the instructions before use,follow them and keep
them for reference.
Do not allow chemicals to come into contact with any
part of the body, particularly the mouth and eyes.
Keep small children and animals away from experiments.
Keep the experimental set out of reach of children under
8 years of age.
WARNING
OBSERVATIONS
STAGES OF CRYSTALLIZATION
There are three major stages in which crystallization happens.
1. Saturation of the Solution - solution is saturated when no more chemical
will dissolve.
2. Nucleation - during this stage in the initial formation of crystals begins.
3. Crystal Growth - the stage in which crystals begin to form as you grow
your crystal hedgehog, you will observe each of these stages. Record your
observations as the crystallization occurs. Observations can include the
length of time it takes for your solution to become saturated, the rate at
which the crystallization occurs and notes about on which day the most
crystal growth occurred.
8
8
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