What is it?

For cybersmart, we had to research about the search bar. We had a question that we had to answer, it about Austin Post. We had to type his name on the search bar and screenshot what had come up. His name come up as Post Malone. We had to screenshot the search bar, natural results and filters. Here are the screenshots that I've taken.

Search Bar

Filters

Natural Results

Bonus Question

How did Austin Post (Post Malone) choose the name he is best known by?

According to Wikipedia, Post Malone chose his name referring to a basketball player Karl Malone. He used a rap name generator and he got 'Malone'.

I hope you like my post about my research about the search bar. Have a cool day!! Bye!!

Why is Earth's Temperature Increasing?

For today's post, we are going to look at Earth's temperature. If you haven't seen my last post, 'The Three R's' check it out! If you don't know, I have started my new science badge, Environmental Science. I've chosen to post about this topic because we need people to know why our temperature is changing and we need to stop it. This is why our temperature is changing.

One of the reasons Earth's temperature is increasing is because of Pollution. I've made a blog post about Air Pollution and what it does. Here's a preview of the blog post.

You have heard of the word 'Pollution', but do you know what is air pollution. Well, the word 'Pollution' means, effects that harm our environment. Air Pollution means Pollution in the air. Air Pollution is one of the reasons our climate is changing.

Read more...


Carbon Dioxide's Affect

Carbon Dioxide (CO₂) is a colourless gas. Carbon Dioxide is released by natural processes like volcano eruptions, human activities like deforestation, burning fossil fuels. Humans have increased have CO₂ in the atmosphere by more than a third since Industrial Revolution began. The latest measurement of Carbon Dioxide is 409 ppm (parts per million) in September 2018 (last month). As you see the image below the Carbon Dioxide has increased since the 1950 level.

Here is an image about the Carbon Dioxide increasing since 1950.
Credit: https://climate.nasa.gov/evidence/

Image about Carbon Dioxide increasing - From 2015 to present
Credit: https://climate.nasa.gov/vital-signs/carbon-dioxide/

How Many Degrees has it Increased?

After learning about Carbon Dioxide and what it does to Earth, let's know how hot is Earth? According to Goddard Institute for Space Studies (GISS), on average, every year, Earth has increased 0.8° since 1880. The warmest year on record is 2016. On the right is an image which shows you the temperature anomaly (long-term average). Below the image, there is a video about the global temperature anomalies it's from 1880-2017. This video is from NASA Climate Change.





As you see in the video, the Carbon Dioxide has mostly increased in the Northern Hemisphere. Temperature has also increased in cold places like Antarctica and Greenland. Below are two videos of ice loss in the Antarctic and Greenland.





Here is a video from NASA Climate Change about Greenland's ice sheet and how it is changing. There are missions studying Greenland: Operation IceBridge, GRACE (Gravity Recovery and Climate Experiment), ICESat 2 (future) and Oceans Melting Greenland (OMG).




What I've Learnt

• Carbon Dioxide (CO₂) is a colourless gas.
• Carbon Dioxide is released by natural processes like volcano eruptions, human activities like deforestation, burning fossil fuels.
• Humans have increased have CO₂ in the atmosphere by more than a third since Industrial Revolution began.
• The carbon dioxide last month was 409 ppm. 
• ppm means 'Parts per million'.
• The carbon dioxide has increased so much from 1950.
• Earth has increased by 0.8° since 1880.
• The warmest year on record is 2016.
• Carbon Dioxide has increased so much in the Northern Hemisphere.
• Every year the average mass of loss is 125 gigaton/year in Antarctica.
• Every year the average mass of loss is 281 gigaton/year in Greenland.

I hope you like my post about 'Why is Earth's Temperature Increasing?'. Comment down below if you've learnt something new. Have a cool day!! Bye!!

How much do you know?

For today's post, I have a survey about my recent post, Air Pollution. I've also made another survey about Pollution. We want to find out the first 10 people who finish the survey. The first survey is about Pollution.



After clicking 'Submit' you go on the next survey.




What I've Learnt

• How to embed a Google Form.

I hope you like my post about the survey. Comment down below if you've participated in the survey. Have a cool day!! Bye!!

Is it because of Air Pollution?

For today's post, we are going to look at Air Pollution. You have heard of the word 'Pollution', but do you know what is air pollution. Well, the word 'Pollution' means, effects that harm our environment. Air Pollution means Pollution in the air. Air Pollution is one of the reasons our climate is changing.

Long-Term Effects

My drawing about Air Pollution

There are long-term effects of air pollution like heart diseases, lung cancer, diseases like emphysema, also it can damage your liver, brain, nerves, or kidneys. These effects have a major effect on children that can have medical conditions in the elderly. Air pollution not only affects humans, but they can also affect animals, forests, crops, and bodies of water. Did you know: Indoor Pollution kills 4.3 million people each year.

Indoor Pollution

Indoor pollution is pollution inside your house. Weird, right! Pollution in your house? How can that be? Well, this is true, if you burn coal, wood, kerosene etc. in your house that is called Indoor Pollution. If you burn these resources in your house then it's best to take it away from your house. It might lead to long-term or short-term effects of pollution.

Ways of Pollution in our Atmosphere

A small clip - pollution entering the atmosphere

There are different ways of air pollution coming to our atmosphere. Most of the air pollution is coming from humans like, burning fossil fuels (petrol, gas, coal, natural gas also gasoline that produce electricity and to power our vehicles), factories, cigarette smoke. These are anthropogenic sources, means man-made sources. Pollution like ash from volcanoes, smoke from wildness is called natural sources.

8 Facts about Air Pollution

1. 1/8 deaths worldwide is from Air Pollution.
2. 92% of Earth's population lives in unhealthy air quality.
3. Crops get damaged from Air Pollution.
4. In traffic, Air Pollution increases its chance of a heart attack.
5. Indoor Pollution is 2-5 times worse than air pollution.
6. In many cities, people wear masks to save them from air pollution.
7. Heavy crude oil increases the chance of air pollution than light crude oil.
8. 80% of lung disease is caused by pollution from buses, cars, trucks and other vehicles.

What I've Learnt

• There are long-term effects of air pollution like heart diseases, lung cancer, diseases like emphysema, also it can damage your liver, brain, nerves, or kidneys.
• These effects have a major effect on children that can have medical conditions in the elderly. 
• Air pollution not only affects humans, but they can also affect animals, forests, crops, and bodies of water.
• Indoor Pollution kills 4.3 million people each year.
• If you burn coal, wood, kerosene etc. in your house that is called Indoor Pollution.
• If you burn these resources in your house then it's best to take it away from your house. 
• It might lead to long-term or short-term effects of pollution.
• Pollution like ash from volcanoes, smoke from wildness is called natural sources.
• 1/8 deaths worldwide is from Air Pollution.
• 92% of Earth's population lives in unhealthy air quality.
• Crops get damaged from Air Pollution.
• In traffic, Air Pollution increases its chance of a heart attack.
• Indoor Pollution is 2-5 times worse than air pollution. 
• In many cities, people wear masks to save them from air pollution.
• Heavy crude oil increases the chance of air pollution than light crude oil.
• 80% of lung disease is caused by pollution from buses, cars, trucks and other vehicles.

I hope you like my post about Air Pollution. Comment down below if you've learnt something new. Have a cool day!! Bye!!

The Three R's

Image about the three r's
Credit: https://www.elementaryartsintegration.com/

For today's post, we are going to look at 'Reduce, Reuse and Recycle'. I've started my next science badge, Environmental Science. If you haven't seen my other badge posts, Psychology, Astronomy and Geology, then check it out. I've chosen to post about this topic is because people know how to keep our environment safe and tidy. Here is what the three R's mean.

First, it is Reduce. This means using fewer resources to make sure that in the future there are more resources. Like, we should use less plastic bags so they don't end up in the sea. We should use reusable bags that we can use that bag more than once.

Second, Reuse. Reuse means using the resource for more than one time, like reusable bags. Also, you can reuse by making resources out of something. One example is plastic, you can reuse plastic bags by making reusable bags, using plastic bags as your bin, making supply plastic cups, plastic detergent bottles into a watering can, etc.

Third, Recycle. We all have heard of the word 'Recycle', also we know what it means. Let's know how we can help recycle.

• First of all, we should go out with our family or friends and collect rubbish [litter] from parks and gardens. 
• We shouldn't litter.
• Tell people not to litter (if they litter). 
• Collect rubbish if it is not yours. 

We should know what to put in the recycle bin.

• Paper
• Cardboard
• Junk Mail
• Magazines
• Plastic
• Tin Cans
• Aluminium
• Polystyrene
• Jars
• Glass bottles
• Lids

Let's recap why to Reduce, Reuse and Recycle is important.

We can save trees by recycling paper and not using paper that we don't need. We can use plastic that can help us and other people, we shouldn't recycle plastic bags. It's because we need these resources in the future so there would be more trees, paper etc. WE HAVE TO STOP DEFORESTATION!!

What I've learnt

• You can make supply plastic cups, plastic detergent bottles into a watering can, etc. out of plastic.

I haven't learnt much because I had learnt information about 'Reduce, Reuse and Recycle'. I hope you like my post about 'The Three R's'. Comment down below if you have learnt something new. Have a cool day!! Bye!!

Earth's Records

Earth has many records like the largest desert on Earth, tallest geyser, tallest waterfall, largest tsunami, etc. Which includes its height, depth, altitude, how long, how large, and more. If you haven't seen my last post, 'Are There Volcanoes in Our Solar System?', click on the link and check it out. First, we are going to know about our tallest mountain.

Earth's Tallest Mountain

Highest Altitude

People around the world call Mount Everest as the tallest mountain in the world. But, do you know why Mount Everest is named as the tallest mountain in the world? It's because of the highest elevation above sea level. The peak of the mountain is 8,850 metres above the sea level. So that means that Mount Everest is not the tallest mountain in the world. Now let's talk about the tallest mountain. 

Highest Mountain

Really, the tallest mountain is Mauna Kea. Well, Mauna Kea's altitude is 4,205 metres, lower than Mount Everest. Manua Kea is above 10,000 metres above the seafloor. Now, compare Mount Everest's height (8,850) and Mauna Kea's height (10,000). If you've learnt something new about Earth's highest mountain, which is Mauna Kea, comment down below. 

Earth's Tallest Waterfall

Ever thought where and how tall the tallest waterfall in the world? Angel Falls is the tallest waterfall in the world, with a height of 979 metres. The longest drop is 807 metres. Angel Falls is a UNESCO World Heritage Site. Angel Falls is located in Venezuela. The waterfall is surrounded by many types of minerals and rocks. Angel Falls is almost 19 times taller than Niagara Falls. If you've learnt something new about Earth's tallest waterfall, comment down below.

Earth's Largest Earthquake

The damage of Valdivia

The largest earthquake was recorded on May 22, 1960. It occurred in Valdivia, Chile. The earthquake is known as the Valdivia earthquake or Great Chilean earthquake. The earthquake was from 9.4 to 9.6 M_w, the earthquake occurred in the afternoon. It lasted for about 10 minutes. The depth of the earthquake was 25 km. 5,000 people died and 2,000,000 people were homeless. After days after the earthquake, there was a tsunami in Hawaii, Philippines and Japan. Hundreds of people died. Have you learnt anything about the largest earthquake recorded? Comment down below!! Next is about Earth's longest river.

Earth's Longest River

Scientists question, is Amazon longer than the Nile? The Amazon is larger than the Nile by volume. Let's know information about these rivers.

First, the Nile. The Nile is considered as the longest river in the world. The Nile starts from the Nile delta, the river reaches the Mediterranean Sea. The river is 6,695 kilometres long. The Nile River flows through 11 countries: Tanzania, Uganda, the Democratic Republic of the Congo, Rwanda, Burundi, Ethiopia, Kenya, Eritrea, South Sudan, Sudan and Egypt.  Now, the Nile no longer floods each year, it's because the Aswan High Dam was built in 1970.

The Amazon River is the longest river in South America. The Amazon River carries the most water than any other river in the world. The river is responsible for ⅕ for 20% for Earth's water. The Brazilian scientists have been to a 14-day expedition to the Amazon River, they extended the river's length. Now the Amazon River is 297 kilometres longer than the Nile. The Amazon River is 6,992 kilometres long.

So now we know that the Amazon River is the longest river in the world. If you learnt that the Amazon River is the longest river in the world. Comment down below. Share this information to your friends and family. Next is about the Highest Mountain in each continent.

Highest Mountain in Each Continent

Highest Mountain in Oceania

Mount Wilhelm is the tallest mountain in Oceania. It is located in Papua New Guinea. The height of the mountain is 4,509 metres. 

Highest Mountain in Asia

As you know the highest mountain in Asia is Mount Everest. The mountain is located in the border of Nepal and China. 

Highest Mountain in Africa

Mount Kilimanjaro is the tallest mountain in Africa. Actually, Mount Kilimanjaro is also a volcano, with three volcanic shields. The hight of the mountain is 5,895 metres.

Highest Mountain in Europe

Mount Elbrus is the tallest mountain in Europe. Mount Elbrus is located in Russia. The height of the mountain is 5,642 metres.

Highest Mountain in North America

Mount McKinley is the tallest mountain in North America. Mount McKinley is located in Alaska. The height of the mountain is 6,190 metres.  

Highest Mountain in South America

Mount Aconcagua is the tallest mountain in South America. The mountain is the tallest mountain in the western and southern hemisphere. The mountain is located in Mendoza, Argentina. 

Highest Mountain in Antartica

Vinson Massif is the tallest mountain in Antartica. The mountain is 21 kilometres long and 12 kilometres wide. The mountain is 1,200 kilometres away from the South Pole.


I hope you like my post about Earth's Records. Comment down below if you've learnt something new about my post. Because I've learnt somethings too. If I've missed something out. Please comment down what it is. If you know more Earth records comment down below. Have a cool day!! Bye!!

A Google A Day

For Cybersmart, we had to answer some questions. So our question was, 'Explorers from Kushiro, Pevek and Namsos arrive at the North Pole and check their watches. If they arrived at 11:42 am., 12:17 pm., and three am., respectively which team was first?' We had to answer this question and make a blog post about this question. So this is the answer, 'Namsos', it's because the time zone of Namsos is GMT +2 so it is closer than Kushiro, (GMT +9), and Pevek (GMT +12). North Pole (Alaska)'s time zone is GMT -8. The team from Pevek came at 3:00 AM. The team from Kushiro came at 11:42 AM. The team from Namsos came at 12:17 PM. So the team from Pevek was the first team to reach the North Pole. I figured this out by checking the difference of each country.

Distance in km

Pevek - Alaska - 2,858km
Kushiro - Alaska - 4,155km
Namsos - Alaska - 6,547km

So Pevek was the first team to reach the North Pole. I hope you like my post. Have a cool day!! Bye!!

Are There Volcanoes in Our Solar System?

Are there Space Volcanoes? Have you heard of Space Volcanoes? What planet are they on? Are Space Volcanoes beyond our Solar System?

Well, Earth wasn't the only planet in the Solar System with volcanoes. There are also Space Volcanoes which are on other planets and moons.

Io - Jupiter's Moon
Credit: https://solarsystem.nasa.gov/

Now, when it comes to Volcanoes in our Solar System then people think of Io. Io is a moon of Jupiter. Io is the innermost moon of the Galilean Moons. Galilean Moons are moons discovered by Galileo Galilei. So back to Io, it is the fourth largest moon of Jupiter. Io was discovered on 8 January 1610 by Galileo Galilei. The moon has the most density of all of the moons. Io has the least amount of water of any astronomical object in the Solar System. Io is the first moon after discovering Earth's Moon. The moon's orbital period is 42 hours. This means that it takes 42 hours to complete one orbit around Jupiter. Io is the most volcanically active spot in the Solar System. Io is slightly smaller than our Moon. Voyager and Cassini have flybys of Io and studied more about their volcanoes. Galileo (spacecraft) has orbited Jupiter. The recent flyby was New Horizons which was on the way to Pluto.

So, here is a list of volcanoes around the Solar System. The explanation mark shows volcanoes on these planets in our Solar System.

• Venus
• Like Io, Venus is covered with volcanoes. Venus has around 1,000 volcanoes.
• Earth
• Earth's Volcanoes
• Earth's Moon
• Lunar Dome
• Mons Rümker
• Mons Hansteen
• Mars
• Olympus Mons, which is the tallest mountain in our Solar System is also a volcano. The mountain is three times larger than Mount Everest. 
• Jupiter
• Ganymede
• Io
• Europa
• Callisto
• Saturn
• Enceladus 
• Titan
• Neptune
• Triton

What I've Learnt

• Io was discovered on 8 January 1610.
• Io has the most density than the other moons of Jupiter. 
• Io has the least amount of water than any other astronomical object in the Solar System.
• Io is the first moon after discovering Earth's Moon. 
• Io's orbital period is 42 hours.
• Io is the most volcanically active spot in the Solar System.
• Io is slightly smaller than our Moon. 
• Voyager and Cassini have flybys of Io and studied more about their volcanoes. Galileo (spacecraft) has orbited Jupiter. The recent flyby was New Horizons which was on the way to Pluto. 
• Venus is covered with volcanoes.
• Venus has around 1,000 volcanoes.
• Earth's moon has three volcanoes, Lunar Dome, Mons Rümker, Mons Hansteen.
• Olympus Mons is a volcano. 
• Ganymede, Callisto, Titan and Triton is a volcano.

I hope you like my post. Comment down below if you've learnt something new. Have a cool day!! Bye!!

Where are Earth's Volcanoes?

For the last few posts, I've been posting about Volcanoes. If you haven't seen my two posts about Volcanoes, The Ring of Fire and Volcanoes!! 🌋, then check it out!! There are about 1,500 active volcanoes in the world. Many of the volcanoes are in the Ring of Fire. There are 452 volcanoes in the Ring of Fire. That is 75% of Earth's volcanoes. Below is a map of volcanoes on Earth. As you see most of the volcanoes are around the Ring of Fire. If you know any volcanoes that aren't on the map, then please comment down below what volcano it is. If I find any volcano then I will update it. I hope you like my post about Earth's Volcanoes!! Comment down below if you've learnt something new. Have a cool day!! Bye!!

Cool Facts:

• There are 76 volcanoes on Indonesia, this makes the country with the most volcanoes.
• The word 'Volcano' comes from the Volcano name 'Vulcan' the Roman God of Fire.

What Have I've Learnt?

• There are volcanoes on Northern Africa and Central Africa.
• There are volcanoes on Iceland.
• There are volcanoes on small islands. 
• Alaska has heaps of volcanoes on the Aleutian Islands.
• Tamu Massif is a volcano underground/under the sea.
• The word 'Volcano' comes from the Volcano name 'Vulcan' the Roman God of Fire.

Volcanoes!! 🌋

For today's post, we are going to look at Volcanoes 🌋. The last post, that I had posted was about the Ring of Fire. To know more information about volcanoes, watch this video about Volcanoes from National Geographic.

In the video, it includes information about my posts about,

• What's Inside Earth?
• Plate Tectonics
• Ring of Fire

Here I'm going to post about how Volcanoes form. I found a video from my Plate Tectonics blog post of how volcanoes explode. By the video from National Geographic, there is information about how Volcanoes explode if you haven't seen it.

Volcanoes form from rising magma. Magma rises in three ways.

Have you seen someone so close to a volcano? Here is a spectacular volcano video | National Geographic. They have used drones to look from above the volcano. Watch this!!

This video was recorded at Marum Crater, Ambrym Island in Vanuatu. Which 1,334-metre active volcano.



Now here's another video about an active volcano in Hawaii. This video is also from National Geographic. Watch this!!

Lava bubbles up from Kīlauea Volcano in Hawaii
Volcanoes National Park.
Credit: Scott Horvath, USGS.

The video is recorded in Kilauea. Here's information about Kilauea. Kilauea is a shield volcano in Hawaii. It is the most active volcano out of the four in the Island of Hawai'i. The volcano is about 1,247-metres high. Kilauea is located on the southern shore of the island. The volcano is about between 300,000 and 600,000 years old. Did you know that Kilauea has been erupting continuously for more than 30 years!!

An image of Kilauea erupting in Hawaii.
Credit: J.D Griggs, USGS

Volcanoes Around Us

One of the reasons New Zealand is famous is because of their volcanoes. New Zealand has famous volcanoes like the White Island. Here are volcanoes in New Zealand. 

Volcanoes in New Zealand
Credit: gns.cri.nz

1. Mount Ruapehu
2. Mount Tongariro
3. Mount Taranaki
4. White Island
5. Raoul Island
6. Mount Ngauruhoe
7. Taupo Volcanic Zone
8. Mayor Island
9. Mount Tarawera
10. Auckland Volcanic Field
11. Brothers Volcano

Here is a link to gns.cri.nz, for Volcano Geology and Hazards in New Zealand.

What I've Learnt?

• Marum Crater, Ambrym Island in Vanuatu is 1,334-metre high volcano.
• Kilauea is the most active volcano out of the four in the Island of Hawai'i.
• Kilauea is about 1,247-metres high.
• Kilauea is located on the southern shore of the island. 
• Kilauea is about between 300,000 and 600,000 years old. 
• Kilauea has been erupting continuously for more than 30 years!!

I hope you like my post about Volcanoes 🌋!! Comment down if you've learnt something new. Have a cool day!! Bye!!

The Ring of Fire!!

For today's post, we are going to look at the Ring of Fire. Do you know what is the Ring of Fire? Where is it? What it does? Here's information about the Ring of Fire. I hope you like my post. Comment down below if you've learnt something new like me. Have a cool day!! Bye!!

• The Ring of Fire is in the Pacific Plate.
• The Ring of Fire is also called as the Circum-Pacific Belt. 
• The Ring makes 75% of the world's volcanoes and 90% of its earthquakes. It has 452 volcanoes.
• Most of the volcanoes are underground.
• The Ring of Fire covers around the Pacific Ocean shown in the picture on the right. It covers countries,
• New Zealand, Indonesia, Papua New Guinea, Phillippines, Japan, Taiwan, Russia, Japan, Alaska, Canada, United States, Mexico, Chile, Peru, Guatemala, Tuvalu, Kiribati, Malaysia, Fiji, Tina, Soloman Islands, Micronesia, Singapore, Samoa, Bolivia, Nicaragua, Colombia, Panama, Ecuador, El Salvador and Costa Rica.
• The Ring of Fire is 40,000 km.
• It lies on many tectonic plates. Link on my blog post of Tectonic Plates which gives you information about it.
• These volcanoes are made because of Plate boundaries.

There are major volcanoes in the Ring of Fire.

• Mt Fuji
• The Andes
• Mt St Helens
• Mt Ruapehu
• Popocatépetl
• Krakatoa
• Aleutian Islands (a chain of islands in Alaska)

The Ring of Fire has the deepest ocean trench, Mariana Trench. Which is located in the western North Pacific Ocean. Guam is 538 km away from Challenger Deep (which is the southern end of the Mariana Trench and the deepest point of Earth). The Challenger Deep is just around 11,000 m (10,994 m).

Here's a video from Vox about the Natural Disasters around the Ring of Fire. | Vox

Here is a video about Earthquakes. | National Geographic

Here is a video about Volcanoes. | National Geographic

What I've Learnt

• The Ring makes 75% of the world's volcanoes and 90% of its earthquakes. It has 452 volcanoes.
• The Ring of Fire is 40,000 km.
• It lies on many tectonic plates.
• These volcanoes are made because of Plate boundaries.
• Guam is 538 km away from Challenger Deep.
• The Challenger Deep is in the southern end of the Mariana Trench.

Rotorua

For today's post, we are going to look at Rotorua. So we had to make a guide about Rotorua. If you haven't seen my posts about the trip of Rotorua, check it out! Day 1, Day 2, Day 3, Day 4, Day 5. If you haven't commented on my 'I Need Your Help!' post please do. If you have, then, Thank You. I hope you like this post. Comment down if you've learnt something new. Have a cool day!! Bye!!

So, Rotorua is famous for its geothermal activity. Here are facts about Rotorua:

1. Rotorua is famous for its geothermal activity.
2. Rotorua is the 10th largest urban area.
3. The average depth of Lake Rotorua is 10 metres.
4. The Lady Knox Glacier in Wai-O-Tapu erupts every day at 10:15am.
5. There are seven geothermal fields in Rotorua.
6. Waimangu Volcanic Valley scenic reserve is popular because it is the youngest geothermal system on Earth.
7. The average temperature of Rotorua is in the range from 22 - 26℃ in summer and in the winter the range is from 10 - 16℃. 
8. There are three volcanoes in Rotorua (which are located in Tongariro National Park).
9. Rotorua's nickname is the Sulfur City.
10. 34% of Rotorua's population is Māori.

Information - What to do

What I've Learnt

• Rotorua is the 10th largest urban area.
• The average depth of Lake Rotorua is 10 metres.
• There are seven geothermal fields in Rotorua.
• Waimangu Volcanic Valley scenic reserve is popular because it is the youngest geothermal system on Earth.
• The average temperature of Rotorua is in the range from 22 - 26℃ in summer and in the winter the range is from 10 - 16℃. 
• There are three volcanoes in Rotorua (which are located in Tongariro National Park).
• Rotorua's nickname is the Sulfur City.
• 34% of Rotorua's population is Māori.