solar energy

Solar Energy

Catching the sun movie

Materials:

1.  cups x4
2.  tinfoil 
3.  water
4.  2 sheets white paper
5.  1 sheet of black paper 
6.  thermometer
7. 1 large cup
8. 1 heat lamp  

Steps

1.   Get materials
2.  Put cups on each piece of paper
3.  See what one heats up more 
4.  Get the thermometer to see what one was the hottest.

Which surface conducts / attracts the most heat?

Time + temperature	Cup 1 White paper	Cup 2 White paper+ plastic.	Cup 3 Black paper	Cup 4 Tinfoil
0	12'c	12'c	12'c	12'c
45 minutes	16	14	22	24
60 minutes	20	19	20	20
75 minutes	18	19	22	26

Findings:

cup one had white paper it started 12'c  and at 45 min it went to  16

and at 60min  it went to 20 and at 75 min it went to 18

cup 2  it started off at  12'c and at 45 min 14 and at 60min 19 and at 75 min it was 19
cup 3 it started at 12 then at 45min 22  60min 20 75min  22 

cup 4 it started at 12 then at 45 min 24 then at 60 min 20 and at 75 min 26

wind power

Weather and Climate Change 

Extreme weather

Measuring weather.

Wind

Beaufort Wind Scale

Beaufort Force	Wind Speed (KPH)	Spins	Indicators	Terms Used in NWS Forecasts
0	0-2	0	Calm; smoke rises vertically.	Calm
1	2-5	10	Shown by direction of wind smoke drift, but not by wind vanes.	Light
2	6-12	40	Wind felt on face, leaves rustle; ordinary vanes moved by wind.	Light
3	13-20	80	Leaves and small twigs in constant motion; wind extends light flag.	Gentle
4	21-29	130	Raises dust and loose paper; small branches are moved.	Moderate
5	30-39	190	Small trees in leaf begin to sway; crested wavelets form on inland waters.	Fresh
6	40-50	250	Large branches in motion; whistling heard in telephone wires; umbrellas used with difficulty.	Strong
7	51-61	320	Whole trees in motion; inconvenience felt walking against the wind.	Strong
8	62-74	390	Breaks twigs off trees; generally impedes progress.	Gale
9	75-87	470	Slight structural damage.	Gale
10	88-101	550	Seldom experienced inland; trees uprooted; considerable structural damage occurs.	Whole gale
11	102-116	640	Very rarely experienced inland; accompanied by widespread damage.	Whole gale
12	117 or more	730+	Very rarely experienced; accompanied by widespread damage.	Hurricane

Wind speed - Making an anemometer.

MATERIAL  

1 PENCIL  

2  pin

3 tape 

4 straws

STEPS

1.   Get material.
2.    Put pin in the middle of straw
3.   Put cups on straws 
4.   Put tape in middle to keep everything together

Once you have made an anemometer we are going to record the wind speed.

Group size: 5

You will need:

Anemometer (above) 

Roles:

• Timekeeper
• Counter
• Recorder
• Anemometer Manager
• Wind generator

1. Mount the anemometer in a place that has full access to the wind from all directions.
2. When the time keeper says "Go", the counter in each group will count how many times the marked cup passes them in one minute and write it down.
3. If possible, repeat the above step four (4) times and record the average number of spins on the chart.

FINDINGS

• Record how many times it spins using the table below.

You will need to create the wind yourself by blowing. Get 4 different wind speeds by blowing.

You will need to time them and count the number of spins.

	Time Interval	Number of Spins
1.	10 sec.	20
2.	10 sec.	14
3.	10 sec.	17
4.	10 sec.	19

• Can you make a statement connecting the number of spins of your anemometer and the speed of the wind? 

CONCLUSION:

The stronger the wind the more it spins around.

rubbish bin

Aim: To learn practical ways of recycling so that we can make our world a better place.

The Zero Waste Climate Solution movie

How can we prevent climate change though recycling these products?

Plastics:   there lese is in the world.

Cycling or walking:  that there is no gas .

Paper: we have some more clean air.

Steel:  there is not that much gas.

Video questions:

What is Zero Waste?

 One of the quickest and cheapest ways a community can immediately reduce climate import.

What can we do on the planet?

• Reuling 
• Rensign 
• Reuse 
• Repair 

What do we need to recycle?

• Bags
• Clothes
• Can 
• bottles 
• Paper 

What does recycling do?

• Help the earth 
• Make the earth cleaner 

How much of our rubbish is food scraps?

• alot 

What does soil do to carbon dioxide in the atmosphere?

• It kills the plant.
• We don’t have much food.
• We need food and we need more plant.

What is a carbon footprint?

How can you make your Carbon Footprint smaller?

ENERGY SAVING TIPS FILM

Name 4 of the tips.

1.   Not use coal
2.   Not use gas 
3.   Not use oil 
4. Put rubbish in the rubbish bin

AT WHAT RATES DO DIFFERENT ITEMS DECOMPOSE?

MY INVESTIGATION.

Choose 5 items from the list and investigate them. 

• Paper 
• Leaves 
• Glass bottles 
• Plastic bottle 
• Plastic bags 

Paper 

It takes 2 to 4 week to break down. It give as air 

Step 1: The recipe. We use sand, limestone, soda ash and recycled glass(cullet) in our glass recipe. 

Step 2: Melting. 

Step 3: Molten Glass Separation. 

Step 4: Forming & Moulding. 

Step 5: Annealing. 

Step 6: Inspection.

Step 7: Packing & Shipping. 

Step 8: Recycling.

Leaves 

1 to 3 months to break down. It make compost.

Step 1 trees

Step 2 water 

Step 3 sunlight 

Glass bottles 

It takes 500 to 1000 years to break down . They make roads.

Step 1: The recipe. We use sand, limestone, soda ash and recycled glass(cullet) in our glass recipe. 

Step 2: Melting.

Step 3: Molten Glass Separation. 

Step 4: Forming & Moulding. 

Step 5: Annealing. 

Step 6: Inspection. 

Step 7: Packing & Shipping.

Step 8: Recycling.

Plastic bottles 

It takes 400 to 500 year to break down .People make roads and clothes.

How to make plastic bags vid.

Plastic bags 

It takes 10 to 20 years to break down. The bags pollute the earth.

How to make plastic bags vid.

Science - Water cycle

AIM: TO LOOK AT THE WATER CYCLE AND HOW CLIMATE CHANGE IS AFFECTING IT.

Definition:

Scientific words:

• Evaporation. When water is heated by radiant energy it turns into water vapor.
• Transpiration. Evaporation from plants.
• Condensation. When water vapor cools, molecules join together and form clouds.
• Precipitation. When clouds get heavy the waters falls as rain, sleet, hail, or snow.
• Acidification: the action or process of making or becoming acidic.

We will be conducting an experiment that looks at the different ways that climate change is affecting the water cycle.

THE WATER CYCLE EXPERIMENT

Bag 1: Normal Water cycle

Bag 2: Water cycle with CO2 added: like Oceans in climate change

Bag 3: Water cycle with ice added: like Antarctica in climate change

Material:

 
 
1.  Plastic bag
2.  Vivid Marker
3.  1 cup of water
4.   2 drops of food colouring

Steps:

1.  On your plastic bag draw out the layout.
2. After that write write that represent the process of water.
3.  Then pour 1 cup of water.
4. After the water is poured put in 2 drops of blue food colouring.
5. Then display them in a place that the sun will shine on

Findings:

	The Water Cycle: Bag 1	CO2 Water Cycle: Bag 2 Acid	Desert Water Cycle Bag 3
Does it cycle?	Yes	Yes	No
Amount of Water	2	2	2
Acidity	1	2	1

Key: Water and acidity amount: 1 = none 

2 = small drips

3 = large drips

Ice melting cap

  NASA has estimated that the polar ice caps are melting 9% every ten years, which is an extremely alarming rate. If the temperature on earth continues to rise at its current rate t            he Arctic will have no ice by 2040. The Arctic ice cap has decreased since the 1960s  by as much as 40%.