Science Hurumanu

Aim: To learn about a saturated solution and how to make crystals

Crystal video

Definition of the solution: 

A liquid mixture, when something is dissolved into a liquid (eg: sugar in water) 

Definition of saturated: 

Having or holding as much as can be absorbed of something (when no more sugar or borax can be dissolved into the water)

In groups of three, you will make three different types of crystals and compare the results.

Borax Crystals

Borax Crystals time-lapse video

Ratio; 3 Tablespoons Borax per 1/2 cup water

Materials

1) water

2)borax  solution

3)cup

4)peg

5)ape cleaner (star)

Process

Step 1: You need a cup

Step 2: You need warm water, and out the water in the cup.

Step 3: And you need borax, put the borax in the warm water, and mix up like 10 minutes.

Step 4: You need peg and ape cleaner, make the ape cleaner to a star shape.

Step 5: And put the ape cleaner the high one though the peg middle.

Step 6: And you put the ape cleaner in the water, but don't put the peg in there, just put the peg a bet high.
Step 7: And wait for 1 week, and you have crystals.

Sugar Crystals

Sugar crystals video

Ratio: 1 cup sugar to 1/2 cup water

Materials

1)sugar solution

2)cup

3)string

4)stick

5)water

Process

Step 1: You need a cup

Step 2: You need warm water, and out the water in the cup.

Step 3: And you need sugar, put the sugar in the warm water, and mix up like 10 minutes.

Step 4: You need a string and a stick.

Step 5: Wrap the string on the stick.

Step 6: And put the stick in the cup, and wait for 1 week, and you have crystals.

Salt Crystals

Salt crystals time-lapse video

Ratio: 4 Tablespoons salt to 1/2 cup water

Materials

1)sugar solution

2)cup

3)string

4)stick

5)water

Process

Step 1: You need a cup

Step 2: You need warm water, and out the water in the cup.

Step 3: And you need salt, put the salt in the warm water, and mix up like 10 minutes.

Step 4: You need a string and a stick.

Step 5: Wrap the string on the stick.

Step 6: And put the stick in the cup, and wait for 1 week, and you have crystals.

Findings

Describe your crystals in the table below.

Crystal Type	Shape (Describe the shape)	Size (of individual crystals)	Hardness (Crumbly to Rock Hard)
Borax		Medium round and sharp	Hard
Sugar		Square	Hard
Salt		Square	Hard

What crystals worked out best and why?:

Conclusion:

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After watching the videos as a class, explain how the following crystals are formed:

Type	Explanation
Salt	The salt molecules are Na and Cl together and we have a crystal. Each crystal has different shapes, salts shape is like six-sided die.
Sugar	The water evaporates, and the sugar molecules to come out, and all the sugar crystal seeds on the string.
Snowflakes	A snowflake is beginning from when the very cold water onto a pollen or dust particle in the sky, and you have a snowflake.