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.  

2.  

3.  

4.  

5.  

6.   

7.

Upload a photo of each powder.

1.  Cornflour

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	white	white	white	white
Texture	crystal	Crystal	Square powdery crystals	powder
Smell	Sweat lollie	disgusting	sodium	corn
Iodine	Changed colour to dark orange	dissolved	hardened	Turned black
Water	Got wet No change	No change	hardened	Made oobleck That is a hard gooey liquid
Vinegar	Got Wet No change	No change	foaming	No change

Write a paragraph about your findings.

when we added the chemical water to sugar and salt nothing happened. 

when we added iodine to sugar and cornflower it changed colour.

when we added vinegar to baking soda it fizzed up.

Making Sherbet

Using the following recipe you need to make sherbet.

Sherbet recipe

Recipe:

1tsp of powdered drink crystals (eg refresh)

1/4 tsp citric acid

1/4 tsp tartaric acid

1/4 tsp -baking soda.

Put all ingredients into a zip lock bag, stir, and enjoy.

Materials:

Findings:

Sherbet
Taste
Colour

Wetlands

Aim: To learn about the wetland ecosystem.

What is a Wetland?

Any land consisting of marshes or swamps and land that is saturated with water.                                                                

4 different kinds of wetlands

1. Marsh - wetland that is dominated by plants.
2. Swamp - an area of low-lying, uncultivated ground where water collects.
3. Bog - an area of wet muddy ground is very soft.
4. Mire / fen - a stretch of swampy or boggy ground.

Common wetland plants in NZ

Name	Image	Purpose
EG: Swamp weed		Food for fish and birds Home for fish and birds Cleans the water
Bullrush		Ducks make nest out of them and fish hide under them and use them for food.
Harakeke
Raupo		Ducks make nest out of them and fish hide under them and use them for food.
Toitoi

Common animals, insects, birds you may find in a NZ wetland.

Name	Image	Food
Duck		natural insects, mollusks, seeds, grains, and plants Cracked corn.
Frog		insects flies, mosquitoes, moths and dragonflies.
Butterfly		Butterflies can eat anything that can dissolve in water. They mostly feed on nectar from flowers but also eat tree sap, dung, pollen, or rotting fruit. They are attracted to sodium found in salt and sweat. This is why they sometimes even land on people in Butterfly Parks. Sodium as well as many other minerals is vital for the butterflies reproduction.
Grey Heron		Herons are predators; hunting for fish, amphibians, reptiles, insects and small mammals. They are also opportunistic which means they are very unlikely to pass up the chance of an easy meal. You may also be surprised at some of the other prey we have seen herons take here at Montrose.
Dragonfly		mosquitoes
Fish		There are several types of food for the aquarium fish - live food such as worms and shrimp, frozen food and pre-packaged foods. Prepackaged foods are produced in different forms - flakes, granules or pellets. Each type is designed to suit feeding habits of different kinds of fish.

Ecosystems.

Definition: An ecosystem is a large community of living organisms (plants, animals and microbes) in a particular area.

Food chain:

Create your own food chain from the Kyle park wetlands below. Use the food chain above as an example.

Food  Webs:

Definition: A food web is similar to a food chain but larger. A food web uses arrows to show the energy relationships among organisms. Food webs show how plants and animals are connected in many ways.

Create your own food web of Kyle Park using:

Algae

Dragonfly

Tadpole

Frog

Fish

Grey Heron

Native plants

I made this letter so we can have more native trees and birds in our community

Dear Mr. Bush

My name is Kadyn from Hornby High School

We are currently working on a project called Tane Mahuta trying to bring native birds back to our school by planting native plants.

Today we explored around the school grounds and we were checking out seeds on trees and talking about what happens to them. For example, we were talking about how the birds pick the seeds and the seeds are sticky, and they get stuck onto their feathers and when they are somewhere else they will itch their feather to get it of and it drops, and get placed somewhere in the ground and the seed will grow until they are plants.

We would like to ask you if we can have 100 native seedlings so we all have 1 each to plant and we would also like 1 trailer of use potting mix please.

← this picture is a tree with lots of seeds and they dry up and the seeds will full                       

out and drop on the ground and they will grow.

Thank you for reading my email and Thank you for also giving us these seeds and potting mix.

By Kadyn R