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Thursday 14 March 2019

science home chemistry crystals

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

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)




Borax Crystals

Image result for borax crystals

Materials

1) borax
2) paper cup
3) hot water
4) string 
5) ice block stick
6) 3 pipe cleaners

Process

Step 1: tip 3 tablespoons of borax in the paper cup.
Step 2: pour 1/2 cups of hot water.
Step 3: stir the borax water until the the borax is gone.
Step 4: tie a string to a ice block stick
Step 5: take 3 pipe cleaners and make a star.
Step 6: tie the star to the string and leave it in the borax.

Sugar Crystals

Grow your own Sugar Crystals


Materials

1) sugar
2) a paper cup
3) hot water
4) string
5) ice block stick
6) spoon

Process

Step 1: pour 1 cups of sugar in a paper cup.
Step 2: pour 1/2 hot water in the cup.
Step 3: stir the sugar water until the the sugar is gone.
Step 4: tie a string to a ice block.
Step 5: put the the string in the water.

Salt Crystals

Image result for how to make salt crystals

Materials

1) salt
2) hot water
3) spoon
4) string 
5) ice block stick
6) paper cup

Process

Step 1: pour 1 cups of sugar in a paper cup.
Step 2: pour 4 tablespoons hot water in the cup.
Step 3: stir the salt water until the the salt is gone.
Step 4: tie a string to a ice block.
Step 5: put the the string in the water.


Findings

Describe your crystals in the table below.



Crystal Type
Shape
(Describe the shape)
Size
(of individual crystals)
Hardness
(Crumbly to Rock Hard)
Borax






Sugar






Salt







What crystals worked out best and why?:

Conclusion:

________________________________________________________________________




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


Type
Explanation
Salt



Sugar



Snowflakes





CRYSTAL TYPES


AIM: TO LOOK AT THE 7 DIFFERENT TYPES OF CRYSTALS


Image result for salt crystal image
Salt Crystals

Image result for sugar crystal image
Sugar Crystals

Image result for borax crystal image
Borax Crystals


7 different crystal shapes




The 7 types of crystals


Type
Number of sides
2 examples
Image
Triclinic

7

Turquoise Rhodonite

Image result for rhodonite
Monoclinic


9
Image result for Monoclinic crystal
Orthombic



4
Image result for Orthorhombic crystal
Trigonal



12
Image result for Trigonal crystal
Hexagonal



8
Image result for Hexagonal crystal
Cubic



6
Image result for cubic crystal
Tetragonal



10
Image result for Tetragonal crystal


1 comment:

  1. Hi Brodie

    The beginning and end of your crystals blog look great, but there are a few bits in the middle still to be filled in!

    Have another look and see if you can complete those missing parts.
    - Miss Birtch

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