Physical/Chemical Change.

 Title: Physical or Chemical Change (heating ZnO)

________________________________________

Hypothesis-  Heat, Sparks = Chemical.

Equipment- Sample of ZnO (Zinc oxide)

 - Heat Source - Hot plate

- Scales

- Heat proof container - euapourating dish 

- Tongs 

- Heats proof mat.

Method- 

1. Get sample of ZnO in an eupourating dish.

2. Weish the ZnO & container - record weigh.

3. Heat centainer & ZnO on hot plate.

4, Observe any changes- use phone for before and after photos ( video)?

5. Fake of heat & put on heat proof mat.

6. Let cool - observe- Photos.

7. Re weigh.

Results- What happend? The powder had changed into a high green colour when the heat started getting home. I think this is a Chemical change because the colour changed.

Conclusion-  At the end of the experiment was alright but it wasn't that intersting and fun for but hoping next lesson would be better.

Separating a Mixture using Evaporation- sciences

Separating a Mixture using Evaporation:

Aim: why you are doing the experiment

Hypothesis: what you think will happen, and why….

Equipment: Copper sulfate solution, 250mL Beaker, heat proof mat, evaporating basin, element.

Method: 

1. Set up element
2. Add 100mL of hot water to the beaker and place on the element.
3. Add copper sulfate to the evaporating basin until it is quarter full.
4. Carefully, place the the evaporating basin on top of the beaker. 
5. Turn on the element to 8
6. Heat the solution until most of the solvent has been evaporated and crystals of solute are forming. 
7. Turn off the element- careful not to touch as will be hot for a long time.

Oberservations: In the experiment I saw the blue luqid going to into the water and you could see the water boiling into bubbles.

Conclusion:

Discussion:

Evaluation:

Solubility Experiment

Solubility Experiment 

Aim: To see if salt or baking soda dissolves more in water.

Hypothesis: I don't have any theories but I think the baking soda will dissolve faster but it will turn to paste but that is it changing from it's orignal form so it had dissolved.

Equiment: A 250ml breaker, 100ml measuring cylinder, salt, baking soda, a stirring rod, a teaspoon and a ruler.

Method:
1. Fill the breaker with 100ml of tap water.
2. Add a level teaspoon of baking soda. A level teaspoon is obtained by running your ruler across thr edge of the teaspoon.
3. Stir the solution until all of the subtance had dissolved.
4. Repeat step 2 and 3 until no more baking soda will dissolve into the solution.
5. Record how many teaspoons of baking soda were added.
6. Repeat the experiment again with salt.

Results:

Solute	Number of teaspoon the dissolved in 100ml of water.
Baking soda	3
Salt	7

Discussion: Salt took more spoonfuls to stop dissolving.

Conclusion: The experiment was really good I learn some new stuff about solubility and it ended up being scuccesful, but i didn't really understand it but it was a good experiment.

Science- Climate Change and the future

Aim; To look at the different ways we can prevent climate change in the future.

How is sea level rise going to effect us in NZ

What places will be effected?- Pacific Island and just different places in New Zealand.

What else do we need to think about?- The people that live near rivers.

What other places around NZ will be affected?- Timaru, Gisborne, Whangarei, Nelson, Whanganui.

What does this do to our drinking water?- It makes our water taste like salt water.

What are the main concerns?- The salt water will be going into other people water from underground.

What can we do to prevent climate change?

What can we do?

1.   Electricity Cars.
2.   Public Transpots.
3.   Try not use to much energy.

Curbing climate change

What is the one, silver bullet solution?

There is no silver bullet.

What is the mix of things we need to start doing?

1.   Renewable things
2.   Transpot

What are 3 others you can think of?

1.   Recycling more
2. More running and walking instead of using Electricity
3.   Resuing more

Activities:

Carbon Footprint:

Carbon Footprint explained

Dwelling
Water
Recreation
Heating and cooling
Electricity
Transportation
Food
Waste
Air Travel
Consumption

Colour 1: for actions they are already doing 

Colour 2: for actions that they pledge to undertake in the future

Ecological Handprint The Ecological handprint builds on the concepts from the Carbon Footprint. We will look at the positive actions of:

1. Transportation
2. Community
3. Consumption
4. Water
5. Food
6. Home
7. Waste

1 Colour: For each action you are already doing 

2 Colour: For each action you would like to do in the future

Fossil Fuels- Science

Aim: To learn about the impact of fossil fuels on our environment.

What Fossil Fuels are mined?

1.   Coal
2.   Oil
3.   Gas

How are they mined?

1. 
2. 
3. 
4. 

Where are they mined?

1.  
2.  
3. 



Material:

1.  Cookie
2.   Toothpick
3.   Plate

Steps:

1. Draw a picture of the Cookie.  
2. Draw a picture of a Habitat.  
3. Start mining the Chocolate Chips off the cookie without breaking it.  
4. Count how many Chocolate Chips you have mined and then show the teacher.  
5. Eat the cookie if you want too.
6. Then answer the questions about your Habitat.  

Picture of cookie and habitat:

Conclusion: 

Today in science, we have been focusing on fossil fuels. We did some mining on a cookie, drew some pictures of the cookie and a habitat and then answered some questions related to the habitat that we have chose. During the lesson, I have learned that mining actually effects our environment and our surroundings. 

Renewable Energy- Science

Aim: To make a solar powered oven.

Materials: 

1.   Ruler
2.   Scissor
3.   Marshmallow
4.   Newpaper
5.   Tin Foil
6.   Glab Wrap
7.   Pizza Box
8.   Black Paper
9.   Straw
10.   Selltape
11.   Biscuit
12.  Vivd Maker

Steps:

1. Cut out thr flap on the lid of the pizza box so that it is 5cm around the edge.
2. Selltape some tinfoil on the inside of the flap
3. Selltape some glad-wrap so that the hole you have cut on the pizza box lib is covered over with glad wrap.
4. Put a piece of black plastic on the bottom of inside of the pizza box on the bottom.
5. Make a paper square that fits inside the pizza box and lays around the edge.
6. Put a marshmallow on top of the chocolate biscuit, place it on a plastic plate and put it in the solar oven.
7. Put it in the sun to cook.

Findings:

Time	Temperature
0	Haven't done it
15	Haven't done it
30	Haven't done it
45	Haven't done it

Conclusion




Aim: To make a presentation that investigates different renewable energy's.

Section 1: Title Page

Make a title page that incorporates all renewable energy 's Hydro, Solar, Wind and Wave.

I have done my title page on paper.

Section 2: Definitions

Define and provide a picture of each energy type.

1. Hydro Energy
2. Solar Energy
3. Wind Energy 
4. Wave Energy

-1     -2     -3   -4

Section 3; Investigate each of the 4 Energy types.
( Hydro ,Solar ,Wind ,Wave ) 

1. Type:

Hydro Energy- Hydroelectric energy is energy derived from the movement of water. Water has mass. It falls and flows downward due to gravity. 

Solar Energy- Solar energy is the term used to describe the light and heat produced by the sun. Solar power is the conversion of sunlight into electricity.

Wind Energy- Wind energy refers to capturing the energy from moving air, wind and converting it into electricity. 

Wave Energy- Wave energy is the transport and capture of energy by ocean surface waves and the energy captured is then used for all different kinds of useful work, including electricity generation, water desalination, and pumping of water.

1. Is it used in NZ ? 

Hydro/Wind - New Zealand has excellent renewable electricity resources. We've got hydro, wind and geothermal up the wazoo. In a typical year, more than 70% of our electricity comes from renewable sources, and the government wants this to increase to 90% by 2025 (for non-dry years).

Wave- yes. New Zealand is very fortunate in its wave energy resource.

Solar- I don't know.

1. Other Countries that use it?

Hydro- Yes, There are other countries that have hydro power such as China, Canada, Brazil, the United States and Russia, they also have big land masses.

Solar- Yes,  China, United states, Japan, Germany, India, Italy, United Kingdom and Australia have Solar Energy. 

Wind- Yes,  France, Canada United Kingdom, Spain, India, Germany, United States and China have Wind energy.

Wave-  Yes,The Western coasts of Scotland, Northern Canada, Southern Africa, Australia, Northwest Coast of United States and particularly Alaska have Wind energy.   

1. How is it used to generate electricity?
2. Draw and label a diagram of the main parts of the electricity generator? This can be done on paper and uploaded or on a drawing program on your device. I do not want any Internet images or pictures. They must be hand drawn using a ruler and labelled.

1.  

2.

3.

4.

Section 4: Renewable Energy in the future.

List 10 ways that renewable energy will be used in the future to replace our current activities.