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Tuesday, March 26, 2019

Image result for forensicsForensics

http://sciencing.com/list-forensics-techniques-6392795.html

1. What is the definition of forensic science?


2. Name 5 different kinds of activities used in forensic sciences and find a picture for each.


3. Name 5 jobs that would use forensics to investigate crime 

Finger prints

Aim: To look at the different types of fingerprints.

Material: 

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Steps

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Image result for fingerprint types

Record the types of fingerprints from those in your group.

Name
Fingerprint 1 ( Thumb)
Fingerprint 2 (finger)











Summary of findings:







Hidden 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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Friday, March 8, 2019

ShapesOf Crystals

AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS

 

The 7 types of crystals


Type
Number of sides
Image
Triclinic
Definition:

7
Image result for triclinic crystal
Monoclinic
Definition:

10
Image result for monoclinic crystal
Orthombic
Definition:
denoting a crystal system or three-dimensional geometrical arrangement having three unequal axes at right angles.

6
Image result for Orthorhombic crystal
Trigonal
Definition:
denoting a crystal system or three-dimensional geometrical arrangement having three equal axes separated by equal angles that are not right angles.

10
Image result for trigonal crystal
Hexagonal
Definition:
denoting a crystal system or three-dimensional geometrical arrangement having three axes of equal length separated by 60° and a fourth axis of a different length at right angles to these.
"a hexagonal close-packed crystal structure"

8
Image result for Hexagonal crystal
Cubic
Definition:
a cubic equation, or a curve described by one.

6
Image result for Cubic crystal
Tetragonal
Definition: denoting a crystal system or three-dimensional geometrical arrangement having three axes at right angles, two of them equal.

12
Image result for Tetragonal crystal

Explain how the following crystals are formed?


Type

Salt
Water absorbers to the sun and just leaves into crystals.
Sugar
Refined sugar is made from raw sugar that has undergone a refining process to remove the molasses. Raw sugar is sucrose which is extracted from sugarcane or sugar beet.  The sugar syrup is concentrated by boiling and then cooled and seeded with sugar crystals, causing the sugar to crystallize out.
Snowflakes
A snowflake begins to form when an extremely cold water droplet freezes onto a pollen or dust particle in the sky. This creates an ice crystal. As the ice crystal falls to the ground, water vapor freezes onto the primary crystal, building new crystals –the six arms of the snowflake.

10 Ingredients Diagram



Aim: To learn the names of 10 household chemicals, their elements, and reactions with other substances.

Equipment:


1. Dishwashing Detergent
2. Lemon
3. Salt
4. Vinegar
5. Sugar
6. Air Freshener
7. Onion
8. Lemonade
9. Bleach
10. Baking Soda


NAME
CHEMICAL
IMAGE
SOLID/LIQUID/GAS

Dishwashing detergent
sodium lauryl sulfate




LIQUID
lemon
citric acid and malic acid



SOLID
salt
sodium chloride,




SOLID
vineger
acetic acid




LIQUID
sugar
Lactose




SOLID
Air Freshner
volatile organic



GAS
Onion








synthase enzyme






SOLID
lemonade
synthase enzyme

LIQUID
bleach
peroxide
LIQUID
Baking soda
Sodium bicarbonate
SOLID