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@ Childhood Delight
Calista begins her experience of Air!
Childhood Delight
Do you still play with bubbles? When washing the dishes and a bubble forms when you squirt the soap, do you laugh or smile in delight? Are you tempted to take some soapy mixture and go for a walk, leaving a trail of bubbles everywhere you go?

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@ Desert Dunes

Yellow Daisy Egg
My pets are in awe of these beautiful eggs—they would love to try to paint their own one year. Easter and spring are times of joy as the earth awakens, plants are pushing forth from the soil, and the days are becoming warmer. Many baby animals are born in the spring, and life is burgeoning. May these eggs bring you joy and be a reminder of the earth renewing itself.

Desert Dunes
These ridges in the sands are caused by the action of the wind and are called "dunes". The effect is similar to those found under the sea, where it is the waves that form the dunes. Most windblown sand on the Earth is composed of quartz but gypsum dunes are also found.

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@ Serene Swift
When humans and animals breathe, we give off an odorless gas called carbon dioxide, or CO2. Plants use this gas, along with sunlight, to make food—and oxygen too! This process is called photosynthesis.
Serene Swift
A lone swift soars in solitude against a backdrop of atmospheric pastel cloud.

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@ Frozen Soap Bubble
A gale is officially defined as a wind of between 32 and 63 miles per hour. A wind blowing from 4 to 31mph is a breeze.
Frozen Soap Bubble
A study in patience and skill! A soap bubble frozen in the cold frost.

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@ Fun With Bubbles
"Did you know you can start a fire with ice, Calista?" asked Moriarty.
"How on earth do you do that?" queried Calista.
"Well, you need a disc of clear ice shaped into a lens, then use it as you would a magnifying glass to shine the sun's rays onto flammable material, such as dry grass."
Fun With Bubbles
Wintertime is a time to play outdoors and if it is cold enough you can make some soapy mixture and blow bubbles. Watch as ice forms and races around the interior of the bubble. These are delicate and won’t last long as cracks appear letting the air out and then the bubble is gone.

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@ Soapy Bubbles of Fun
"Did you know that kite flying and fire fighting featured at the 1900 Olympics in Paris, Fanny?"
"That's amazing, Calista!"

Soapy Bubbles of Fun
The iridescence of a soap bubbles, which seem to contain a wealth of changing colour, stem from light striking the bubble from varied angles.

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@ Train In The Mist
When it’s a hot, muggy summer day, you’ve probably heard the word “humid.” But what does that mean, exactly? Relative humidity is the amount of water that the air can hold before it rains. Humidity is usually measured in percentages, so the highest level of relative humidity—right before it rains—is 100 percent.
Train In The Mist
Who has dreamed of taking a train? Sitting in a swaying car—listening to the clatter of steel wheels on steel tracks. You watch the miles go by as you pass through tunnels and forests—and look down on rivers far below.

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@ Sunset Bubble
Calista was very happy to meet Inukshuk here! They both swapped tales of their experiences of their tour of the art gallery wings so far!
Sunset Bubble
The sunset is seen through the body of a bubble, slightly magnifying the setting sun.

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@ Playful Bubbles
"It says here that 'fire' is from the Old English fȳr, of West Germanic origin; related to Dutch vuur and German Feuer," remarked Calista.
"That's interesting!" responded Bluey~*.
Playful Bubbles
Burbling, gurgling bubbles rise, tickling the toes as you play in the water.

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@ Blue Glacier
The air in Earth’s atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.
Blue Glacier
Over many decades a vcontinuing build-up of snow results in the presence of a large enough mass of snow for the change from snow to glacier ice to begin. The age of the oldest glacier ice in Antarctica may approach 1,000,000 years old! Glacier ice is blue because the red (long wavelengths) part of white light is absorbed by ice and the blue (short wavelengths) light is transmitted and scattered. The longer the path light travels in ice, the more blue it appears.

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@ Swift in Flight
Water expands by 9% when it freezes. Frozen water (ice) is lighter than water, which is why ice floats in water.
Swift in Flight
Soaring through the grey clouds, this swift has the freedom of the sky to itself.

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@ Make a Wish Puffballs
"Hey, this is interesting, Calista!" declared Silver. "It says here that if the entire world’s water were fit into a 4 litre jug, the fresh water available for humans and pets would equal only about one tablespoon."
Calista fidgeted with the corner of her brochure. "I'm not sure I follow, Silver!"
"It's a proportion thing, Calista. Nearly 97% of the world’s water is salty or otherwise undrinkable. Another 2% is locked in ice caps and glaciers. That leaves just 1% for all of our needs!"
Make a Wish Puffballs
Golden dandelions in bloom are a lovely sight (especially for bees!). Eventually, all those beautiful flowers turn into white globes of exposed seeds that are often called puffballs. Dandelions are so success at growing because their puffballs disperse their seeds over long distances in a stiff breeze. Some dandelions don't need to wait for the wind, though. As dandelions turn to seed, perhaps you will pick them, close your eyes, make a wish, and blow the seeds into the air!

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@ Cruising Cranes
"I'm going to buy that souvenir wind spinner, Shadow," said Calista. "It'll be a nice colourful addition to my garden!"
"That sounds like a lovely memento, Calista!"
Cruising Cranes
The crane is a graceful, elegant bird. It plays an important role in Japanese symbolism, representing positive change and associated with the New Year in various cultures. Crane symbolism focuses on the need for balance and living in harmony with others.

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@ Strawberry with Bubbly
Air was considered a “pure” element, but in fact the air that’s all around us is made up of a variety of gases: primarily nitrogen and oxygen, with almost 1% argon and even smaller amounts of carbon dioxide and other elements such as krypton and helium. The composition of air is just right for life on Earth, though.
Strawberry with Bubbly
Imagine a ripe, luscious strawberry dropped into a tall glass of sparkling wine or champagne, imparting a subtle fruity flavour into every delicious sip!

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@ Cloud Walking
Oh look ... you won a pet!
Cloud Walking
These clouds are so inviting, fluffy and soft. I wonder how it would feel to walk upon the clouds. Would the feet sink deep into the cloud or would your feet skim lightly across the top? Would you become tired like you do if you walk for a long time on the ground, or would you be able to walk and never tire, no matter how far you went?

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@ Two Heart Kites
"Depending on their strength, winds can be known as a breeze, gale, storm or hurricane. Wind is caused by differences in air pressure. Air rushes from high pressure areas to lower ones," remarked Calista.
"Mm-hmm?" responded Roy.
Two Heart Kites
Two red hearts flying high are a joyful sight, and flying kites is always such a fun pastime. The day is clear, and the breeze is steady—let’s join these happy people and fly some kites of our own.

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@ Diving Polar Bear
"What unit of measure is used for wind speed, Calista?" asked Waylon.
"Um—I don't know—miles per hour?" hazarded Calista.
"No. The knot."
"Oh, Waylon, I thought that was to do with sailing?"
Waylon consulted the tour guide. " 'A knot is a unit of speed equivalent to one nautical mile per hour, used especially of ships, aircraft, or winds.' There you go."
Diving Polar Bear
Polar bears are of course very good swimmers and they have excellent eyesight when underwater. A polar bear will stay in a dive underwater for as long as it can hold its breath, which will usually be about a minute but can be up to three minutes! Their fur is made of hollow hairs, which helps them stay afloat when swimming.

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@ On The Air
“What have you got in your rucksack, Kalila?” asked Calista. “It looks very full!”
“I’ve come prepared for anything, Calista,” responded Kalila. “There’s canvas deck shoes, tennis shoes, flip-flops, sandshoes, walking boots, sandals, loafers—you name it, I’ve got it!”
On The Air
"You're on the air!" This familiar phrase from the world of radio broadcasting—or wireless broadcasting for those of us with very long memories!—is as familiar as the iconic red sign that lights up in the studio, to remind broadcasters that anything they say will be heard by their audience, be it local or around the world.

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@ Air Bubbles
Ray Bradbury wrote a book called The Fireman, but the editors found the name boring. They called a local fire station to ask at what temperature book paper would burn at. The firemen put Bradbury on hold, burnt a book, and reported that the temperature it burnt at was 451° Fahrenheit. The rest, as they say, is history.
Air Bubbles
Bubbles are fascinating, and they can teach a lot about elasticity, surface tension, chemistry, light, and even geometry. Not just pretty spheres that float in the air when playing with soap on a warm day.

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@ Bubbles Everywhere
"When was silver identified as an element?"
"Eek—no idea, Kame-san!"
"Don't worry, Calista! It was as far back as 4000 BCE!"
Bubbles Everywhere
Like a kid's dream of so many marbles. Whether these bubbles can be played with or put in the bottom of a fish tank, they look fun to run your hands through.

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@ Above It All
"Today's trivia question, Toto!" announced Calista. "When were the first ever windmills built?"
"Oh, goodness! I've no idea, Calista, but I imagine they're pretty old!" responded Toto.
Calista grinned. "Windmills have been in use since 200 BCE. They were first developed in Persia and China."
Above It All
You are drifting along in a balloon high above towns, forests, and lakes. The sun is rising as mist rises from the ground. There is a sense of forever as the expanse of the sky goes on and on.

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@ Reflections In A Bubble
The fastest gust of wind ever recorded on Earth was 253 miles per hour.
Reflections In A Bubble
Reflections distort the everyday, when seen through the swirling colours of a bubble, the whole becomes incredible.

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@ Blue Sky Aeroplane
"Choose a name, just look at this exhibit! Isn't it amazing?”
"It certainly is, Calista! Perhaps they'll have it in postcard size in the gift shop!"
Blue Sky Aeroplane
Up, up and away! Does this aeroplane carry groups of happy pets jetting off on holiday? Or perhaps businesspets going on international meetings? Whatever their destination, we wish them a safe journey!

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@ Red Arrows Daredevils
"The Great Fire of London in 1666 gave rise to many changes, you know, Calista," remarked Orpheus. "Many streets were widened across London. New building regulations meant that instead of wood, brick had to be used for all houses."
Red Arrows Daredevils
The Red Arrows team of the British Royal Air Force carry out a heart-stopping aerobatic display here!

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@ Royal Air Force Red Arrows Team
As Calista's experience of "Air" comes to an end, she receives a wonderful gift!
Pine Tree, Blue, Overlay
You can use this wonderful overlay as a backdrop in your art slides, or in the foreground for your pets to scamper around. Trees, glorious trees, there is always room for more trees in your life and your art.

Royal Air Force Red Arrows Team
The famous Red Arrows aerobatic team provide an exciting show here in Newcastle on Tyne, England.
Calista has completed her exploration of "Air"! Your review of the Elements is over now, but there will be more events in PnF soon!