What Is That White Powder?

What is that white powder?

Today you will be a forensic chemist.

A bag of white powder has been confiscated by the airport customs. You need to find out what white powder it is?

Aim: To learn about the makeup of different white powders.

There are  a number of different white powders in our everyday life. Some of these are harmful and others are not. Test the four white powders listed to see which one has been found at the airport.

Here are some examples of everyday kitchen white powders.

Flour

Cornflour

Sugar

Salt

Baking Soda

Baking Powder

Icing Sugar

Tartaric Acid

Citric Acid

Gluten Free flour

Materials

1.  Paper (black)

2.  Salt

3.  Sugar

4.  Baking Powder

5. Corn Flour

6.   Water

7. Iodine

8. Vinegar

Upload a photo of each powder.

1.  Corn Flour

2.  Baking Soda

3.  Salt  

4. Sugar

On the black cardboard using a microscope you need to record what you see. You will be given a small amount of 4 white powders on your cardboard. Look at them under your microscope and record what you see.

Do not mix the powders or taste the powders.

Findings:

	Sugar	Salt	Baking Soda	Cornflour
Appearance	Crystally	Very Very Crystally	Very powdery	White powder
Texture	Rough	Fine	Fine	Clumpy
Smell	Nothing	Nothing	Gassy (Light)	Corn (Strong)
Iodine	Stays As Liquid	Infuses	Infuses	Hard Dots
Water	Dissolved	Dissolved	Goes Into A Clump	Weird Texture
Vinegar	Infused	Infused	Fizzy	Powder Goes Into Liquid

Write a paragraph about your findings.

As we put the iodine onto the white powders they suddenly changed colours, the vinegar made things fizz and the water made everything.

Plants Science

AIM: TO LEARN ABOUT THE NATURE OF PLANTS

Plants fall into two categories:

1. Evergreen

2. Deciduous

Deciduous

Evergreen

Find three examples of each:

Evergreen: 

1. Hemlocks  

2. Conifers

3.  Blue Spruce

Deciduous:

1.  Oak

2. Maple  

3.  Willow

LEAVES

Simple                                 Compound   

Example: 
Plant type: Deciduous / Evergreen

Leaf type: Simple / Compound
Leaf colour: Green
Photo of leaf: 

Plant drawing:

MY LEAF COLLECTION

1.

Plant type: Evergreen

Leaf type: Simple
Leaf colour: Green

Photo of leaf:

Plant drawing:

2. 

Plant type: Evergreen

Leaf type: Simple

Photo of leaf:

Plant drawing:

3.  

Plant type: Evergreen

Leaf type: Compound

Photo of leaf: 

Plant drawing:

RESEARCH 4 TYPES OF PLANTS

Carnivorous plants
Pine trees 
Fruit trees
NZ Natives

Example

Title: NZ Natives
Examples: 
1. Manuka
2. Kauri
3. Rimu
4. Kohekohe

Habitat: Where do they live?
Country: New Zealand
Climate:

Picking Plums

This morning half way through period 2 we went into the school garden to do a pretty fun activity.

That activity was picking out plums off the tree, can you guess why. If you guessed we were going to make it into a jam then you were 100% correct.

First Mr Mitchell needed help taking all the gardening tools out of his car, so Kody, Ruavai and I helped him.

Next, we walked down to the garden with the gardening tools and dropped them off in the garden.

Then we started picking the plums, but we noticed all the plums were high up in the trees luckily we had a ladder but a ladder was not big enough, so Mr Tisch came climbed up the tree and started to shake it so that the plums will fall out the tree.

After that, I got given a bag so that people can put their plums in my bag. I got around 30 plums in my bag, but Kody got around 50 in his.

All up we probably collected around 100 plums, so we might be able to make 3 jars of jam.

Crazy Crystals Update*

To learn about a saturated solution and how to make crystals

Borax Crystals

Materials

1 Pipe Cleaner x3

2 Spoon

3 Water (Preferably warm) (Half Cup)

4 Borax (8 tablespoons)

5 Cup 

Process

Step 1: Add 1/4 Of A Cup Of Borax Into A Cup

Step 2: Add Water In To The 3/4 Mark

Step 3: Mix Until The Borax Has Dissolved 

Step 4: Make The Pipe Cleaners Into A Star

Step 5: Clip The Pipe Cleaners On To The Side Of The Cup

Step 6: Leave For 2 Days

Sugar Crystals

Materials

1) Sugar

2) Pipe Cleaner

3) Cup

4) Water (Half Cup)

5) Peg

6) Spoon

Process

Step 1: Add 1/4 Of A Cup Of Sugar Into A Cup

Step 2: Add Water In To The 3/4 Mark

Step 3: Mix Until The Sugar Has Dissolved 

Step 4: This Time Use One Pipe Cleaner

Step 5: Clip The Pipe Cleaner On To The Side Of The Cup

Step 6: Leave For 2 Days

Salt Crystals

Materials

1)Salt

2)Pipe Cleaaner

3)Peg

4)Cup

5)Water (Half Cup)

6) Spoon

Process

Step 1: Add 1/4 Of A Cup Of Salt Into A Cup

Step 2: Add Water In To The 3/4 Mark

Step 3: Mix Until The Salt Has Dissolved 

Step 4:Use One Pipe Cleaner

Step 5: Clip The Pipe Cleaner On To The Side Of The Cup

Step 6: Leave For 2 Days

Findings

Describe your crystals in the table below.

Crystal Type	Shape (Describe the shape)	Size (of individual crystals)	Hardness (Crumbly to Rock Hard)
Borax		The size of the crystals were around 1 miller-litres	The borax crystal was pretty hard.
Sugar
Salt