Hurumanu - Solar Energy

Solar Energy

Catching the sun movie

Materials:

1.  Cups (4)
2.  Water
3. Tin foil 
4.  2 sheets of white paper
5.  1 sheet black paper
6. thermometer
7. 1 large cup/

Steps

1.   Get a cups, four small cups and 1 large cup and black paper, white paper and foil.
2.  Put a water on the small cups but don't put too much.
3.  Get the large cup and put it on the top of the one small cup.
4.  After that place the 1 small cup on the white paper, 1 small cup on the white paper, one on the foil and the small cup with large cup on the top put it on the another white paper.
5.   Get a heat lamp and make sure that light from heat lamp is going to a cup with water.
6.  After that wait for 15 minutes before you measure the water and turn off the heat lamp and wait at least 15 minutes before open it again.

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 d	12 d	12 d	12 d
15 minutes	15 d	17 d	21 d	25 d
30 minutes	17 d	18 d	21 d	23 d
45 minutes	18 d	20 d	20 d	22 d

Findings: 

I think our experiment going well because we find out the temperature and the temperature is going up and down.  But my group got confused because we have a lot of cup that we need to measure so we got confused. But i really enjoy this experiment because i learn how to measure the heat and i learn how the heat is forming.

Conclusion

I enjoy doing this experiment because i learn something new. We place our experiment kinda close to the door and while measuring the temperature of water we are sitting around our experiment which s helping to make more heat so that's why the heat is going up. I enjoy this because we did it right and we try and learn something new for science and because we did it right we an do our blog post right because we have the right details.

Hurumanu - Weather

                        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.

MATERIALS

   

1.    4 cups 
2.    4 straws 
3.    Pencil
4.    Tape
5.     Pin

STEPS

1.   Get all your materials and ready to start.
2.   Get two straw and put the end of the other straw inside of the other straw.
3.   Put a tape on the straws and you can create a x or + shape to see that you did write.
4.   Put some pin on the straw to keep it secure and not able to broke if by the wind.
5.   Under your cross and plus shape you can see something the pin poking out grad your pencil and push the eraser bit.
6.  Now your done and you can the observation.

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	15
2.	10 sec	14
3.	10 sec	16
4.	10 sec	12

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

CONCLUSION:

I think i really enjoy this experiment because i learn something new while doing this because at first i really don't know what is Anemometer and how to use this but because of this experiment i know the it using to measure the wind. A also enjoy the part that we need to make our own anemometer and the time that we test it. I really enjoy this experiment because i learn something new that i didn't know before.

Water Cycle - Hurumanu

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

Definition: Water cycle is a process that the sun is absorbing the water and it going to evaporate and going to the clouds, it's called evaporation. The continues process by which water is circulated throughout the earth and the atmosphere through evaporation, condensation, precipitation and the transpiration of the plants and animals. 

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 coloring

Steps:

1. Grab a plastic bag and vivid pen and wait for the next instruction.
2.  After you get your materials you can draw to your plastic bag
3. Put the 1 cup of water inside of  your plastic bag
4.  Put 2 drops of coloring to your water.
5.  Stick the plastic bag at the window and observe it for a week to see what will going to happen.

Two Images:

Findings:

  I think the water is going to moist on the top of the plastic bag and the water is going repeat evaporation day by day. But if someone poke it maybe the process gone wrong because maybe the water didn't evaporate and just stay like what it is.

Conclusion: 

Today for our science hurumanu we did a new experiment, this experiment is about water cycle, at first i don't know how we are doing a water cycle using a plastic bag and a marker but when we already did the experiment i really enjoy it because i have something the i learn a because of the experiment i get more ideas about water cycle and how it is working. We did that experiment to explain how the water cycle is working and what is it and what are the process that we don't know about water cycle.

Science - Fossil Fuels

 

Aim: To look at how fossil fuels are contributing to climate change and how we can prevent this.

Definition of Fossil Fuels:

Fossil Fuels is a natural fuels such as cola or gas, formed in the geological past from the remains of living organisms.

Scientific Terms for Students

• coal: a dark-brown to black solid substance formed naturally from the compaction and hardening of fossilized plants and used as a fuel primarily for electricity generation
• natural gas: a mixture of hydrocarbon gases that occurs naturally beneath the earth’s surface and is used as a fuel primarily for cooking and heating homes
• renewable resource: a resource that is never used up (e.g., solar energy)
• non-renewable resource: a resource that is not replaceable after its use (e.g., coal, gas)

Examples of Fossil Fuels:

1.   oil 
2.   coal
3.  natural gas

Activity: 

In groups of 3 you will learn about different fossil fuels and the way they are mined?
Each group will be given a fossil fuel. The recorder will read it to the group. The recorder will write down some of the important points.
Person 1: Recorder: to write down 5 points of interest from the text. 

1. 5 Points:
2. Positives and negatives of your type of mining.

Person 2: Reporter: to read back to the class their 5 points of interest.
Person 3: Collector: Gathers the required stationary from the teacher.

Mining Fossil Fuels

What Fossil Fuels are mined? Coal, oil and natural gas
How are they mined?

1. Fossil fuels formed as result of plants and animals that died million of years ago.
2. They are found underneath the Earth's surface at varying depths.
3. Natural gas is found in deep underground rock formations.
4. Coal is mined by the extractions of coal deposits from the surface and underground of earth.

Where are they mined?

1.  The United States
2. Australia
3. Russia
4. China
5. South Africa

Activity;

On the sheet provided you need to make two drawings of your cookie. 
1. looking down at it. 
2. side on -  of the imaginary habitat that will live on the top of the cookie. ( trees, buses, flax, sea, etc)

Material:

1.  Cookie
2.   Paper
3.   Pen
4.  toothpick 

Steps:

1.  First you need to draw the cookie don't break because you need to compare the cookie after you remove the chocolate chip.
2. After that you need to draw a habitat it can a forest or something you want. 
3.   There are some question below that you need to answer about to your habitat you need to answer these questions.
4.   After that you need to remove the chocolate chips from the cookie using the toothpick and draw the cookie again.
5.   You need to draw your habitat and imagine that some people do a mining on your habitat.
6.   After your done drawing you need to answer the question about how it change and what happen on the life of the living things that living on your habitat.

Once you have drawn your cookies you must take 2 pictures and upload them to your blog.

Findings: 

 

Conclusion:  When i answer the question after mining  i realized that mining is not good to our nature because it can affect to some animals that living in their habitat because they can day because of the acid that some people using when mining. I like this lesson because i learn something new that i can used for other work that i need to do.

Climate Change

 As you watch the video answer these questions:

What is our greatest threat in thousands of years?

Our greatest threat in thousand of years is the climate change because this is hard for some of us that the climate is not good.

How do we see climate change affecting the globe?

1.  Climate change is the reason why the water level is going up
2.  the reason why there are some storms that cause why our world is now not in a good situation.
3. Climate change is also the reason of flooding.
4. It also affecting our globe because air pollution is one of the reasons why the globe is getting hotter.
5. It’s affecting our globe because climate change is happening if the temperature is super hot.

What is needed to change history?

We need to use less cars to avoid air pollution, we need to use less factory because the smoke from factories is one of the reasons why the world become more hotter because of the things on that smoke.

Is climate change a man made disaster?

Yes because humans is doing some activities that are not good to our planet and the humans using some things that helping the climate becomes hotter and hotter and our planet don’t like that.

Dramatic action must be made in the next __ years to change it?

10 years

Why is our climate changing?

Climate is changing because the temperature of our planet getting hotter and hotter and the globe don’t like it because it’s too hot.

What is causing the warming trend of the climate?

The things that are causing the warming trend of the climate is the cars, fossil fuel, and the smoke coming out from the factories.

What is the main problem?

Our main problem is the climate change we can avoid this by using less cars to avoid air pollution and we need to avoid using more factories because the smoke coming out from the factories and cars are one of the reasons why the temperature is getting hotter and hotter.

What are examples of these?

The smoke coming out from the cars and factories.

Burning fossil fuels releases what gas?

It releases a carbon dioxide.

How much hotter now is our world?

                                                                      1 degrees Celsius

What do we call this global warming?

This is called climate change.

How is this affecting creatures / animals like bats?

Is affecting some animals like bats because a thousand of bats died because of climate change and some of them got rescued but it’s bad for the other animals the climate change so we need to avoid it.

What percentage of species are near extinction?

8%

How could this affect the world ecosystems?

If the forest is get dry because it's very hot some insects might be die because they not used to it and maybe some of the animals living here can't live properly because of climate change.

What global change was seen and recording breaking last year?

                                                                            It's a big fire.

How is climate change affecting our weather systems?

1. It's getting hotter

2. We can get more rains

3. Flooding and super storm

What is another effect of climate change?

                                       It effect some animals because some of them died because                                                                                         it's getting hotter and hotter.

What will happen if the ice melts in Antarctica and the Arctic?

It can be the reason why our water level going up and the cause of flooding.

How does this affect people?

                             This affects people because some people not used to it especially the weather is                                                    changing time by time so some people can get sick.

What other things affect oceans change.

It's affect because the sea level is getting higher.

What does too much heat do to the coral?

                                                       Too much heat can kill corals.

Why did some industries not want to stop burning fossil fuels?
Because the examples of fossil fuels oil,coal and it produce energy.

Crazy Crystals

                        Crazy crystals  

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

                                  Crystals.

                 Borax Crystals

Materials:

1. Container
2. Spoon
3. Paper
4. Pen
5. Borax
6. Pipes
7. Peg

Procedure:

Step 1: Grab a container

Step 2: Put 3 tablespoon of borax on the container

Step 3: Add the warm water on the borax

Step 4: Mix it well

Step 5: Grab 3 pipes and form it to a star

Step 6: Put the star pipe on the borax with warm water

Sugar Crystals

Ratio: 1 cup sugar to 1/2 cup water

Materials

1) Sugar

2) Container

3) Peg

4) Water

5) Spoon

6)Pipe

Process

Step 1: Grab a container

Step 2: Put the sugar on the container.

Step 3: Add the warm water to the container with sugar

Step 4: Mix the two ingredients together very well.

Step 5: Grab a one pipe

Step 6: Grab a peg and put it together with a pipe and put it on the container with warm water and sugar inside.

Step 7: After you do all the step wait for a day and observe what will happen to your experiment.

Salt Crystals

Ratio: 4 Tablespoons salt to 1/2 cup water

Materials

1) Salt

2) Container

3) Peg

4) Water

5) Spoon

6)pipe

Process:

Step 1: Grab a container/cup

Step 2: Place 3 tablespoons of sugar into the container/cup

Step 3: Pour half a cup of warm water into the cup or container

Step 4: Mix the salt and water with a spoon for how long it takes just to get the salt to dissolve

Step 5: Then after the water and salt has dissolved go and grab a pipe and peg.

Step 6 : When you have your pipe and your peg clip the pipe into the peg and put it into the top of the container and push it until it touches the water and the salt.

Findings:

Describe your crystals in the table below.

For our science experiment our teacher said that we will do a crystals using a sugar.salt and a borax when the teacher said that i become confused because i thought it’s impossible, when we started our experiment we need to wait one day to see the result and after one day we saw that our experiment is successful but the sugar and salt crystals is like nothing happen because the pipe that we put there is just wet and the sugar and salt is stayed on the water but we enjoy the experiment because we have a new experiment that we learn about science and because of that i become more interested about science.