Crystals

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

Crystal video

Definition of 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

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Process

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Step 5:

Step 6:

Sugar Crystals

Sugar crystals video

Ratio: 1 cup sugar to 1/2 cup water

Materials

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Process

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Salt Crystals

Salt crystals time lapse video

Ratio: 4 Tablespoons salt to 1/2 cup water

Materials

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Process

Step 1:

Step 2:

Step 3:

Step 4:

Step 5:

Step 6:

Findings

Describe the crystals in the table below.

Crystal Type	Shape	Size	Hardness
Borax
Sugar
Salt

Forensic Science

Definition:

5 Forensic Science topics;

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Finger prints

Fingerprint characteristics

Aim: To look at the different types of fingerprints.

Materials: 

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Steps

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Insert two pictures here of your fingerprints

Ink prints

Thumb print	Index finger print

Record the types of fingerprints from those in your group.

Name	Fingerprint 1 (Thumb)	Fingerprint 2 (index finger)

Dusting fingerprints:

Lifting fingerprints

Aim: To learn how to lift hidden fingerprints from an object.

1. Lifting and Gathering fingerprints.

Equipment:

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Method: 

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Results:

Lifted fingerprints

Thumb print	Index finger print

Conclusion :